blog/tags/bitcoin/index.html

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  13  <h1>
  14      <a href="http://www.hungry.com/~pere/blog/">Petter Reinholdtsen</a>
  15
  16  </h1>
  17
  18 </div>
  19
  20
  21     <h3>Entries tagged "bitcoin".</h3>
  22
  23     <div class="entry">
  24       <div class="title">
  25         <a href="http://www.hungry.com/~pere/blog/Plain_text_accounting_file_from_your_bitcoin_transactions.html">Plain text accounting file from your bitcoin transactions</a>
  26       </div>
  27       <div class="date">
  28          7th March 2024
  29       </div>
  30       <div class="body">
  31         <p>A while back I wrote a small script to extract the Bitcoin
  32 transactions in a wallet in the
  33 <ahref="https://plaintextaccounting.org/">ledger plain text accounting
  34 format</a>.  The last few days I spent some time to get it working
  35 better with more special cases.  In case it can be useful for others,
  36 here is a copy:</p>
  37
  38 <p><blockquote><pre>
  39 #!/usr/bin/python3
  40 #  -*- coding: utf-8 -*-
  41 #  Copyright (c) 2023-2024 Petter Reinholdtsen
  42
  43 from decimal import Decimal
  44 import json
  45 import subprocess
  46 import time
  47
  48 import numpy
  49
  50 def format_float(num):
  51     return numpy.format_float_positional(num, trim='-')
  52
  53 accounts = {
  54     u'amount' : 'Assets:BTC:main',
  55 }
  56
  57 addresses = {
  58     '<some address>' : 'Assets:bankkonto',
  59     '<some address>' : 'Assets:bankkonto',
  60 }
  61
  62 def exec_json(cmd):
  63     proc = subprocess.Popen(cmd,stdout=subprocess.PIPE)
  64     j = json.loads(proc.communicate()[0], parse_float=Decimal)
  65     return j
  66
  67 def list_txs():
  68     # get all transactions for all accounts / addresses
  69     c = 0
  70     txs = []
  71     txidfee = {}
  72     limit=100000
  73     cmd = ['bitcoin-cli', 'listtransactions', '*', str(limit)]
  74     if True:
  75         txs.extend(exec_json(cmd))
  76     else:
  77         # Useful for debugging
  78         with open('transactions.json') as f:
  79             txs.extend(json.load(f, parse_float=Decimal))
  80     #print txs
  81     for tx in sorted(txs, key=lambda a: a['time']):
  82 #        print tx['category']
  83         if 'abandoned' in tx and tx['abandoned']:
  84             continue
  85         if 'confirmations' in tx and 0 >= tx['confirmations']:
  86             continue
  87         when = time.strftime('%Y-%m-%d %H:%M', time.localtime(tx['time']))
  88         if 'message' in tx:
  89             desc = tx['message']
  90         elif 'comment' in tx:
  91             desc = tx['comment']
  92         elif 'label' in tx:
  93             desc = tx['label']
  94         else:
  95             desc = 'n/a'
  96         print("%s %s" % (when, desc))
  97         if 'address' in tx:
  98             print("  ; to bitcoin address %s" % tx['address'])
  99         else:
 100             print("  ; missing address in transaction, txid=%s" % tx['txid'])
 101         print(f"  ; amount={tx['amount']}")
 102         if 'fee'in tx:
 103             print(f"  ; fee={tx['fee']}")
 104         for f in accounts.keys():
 105             if f in tx and Decimal(0) != tx[f]:
 106                 amount = tx[f]
 107                 print("  %-20s   %s BTC" % (accounts[f], format_float(amount)))
 108         if 'fee' in tx and Decimal(0) != tx['fee']:
 109             # Make sure to list fee used in several transactions only once.
 110             if 'fee' in tx and tx['txid'] in txidfee \
 111                and tx['fee'] == txidfee[tx['txid']]:
 112                 True
 113             else:
 114                 fee = tx['fee']
 115                 print("  %-20s   %s BTC" % (accounts['amount'], format_float(fee)))
 116                 print("  %-20s   %s BTC" % ('Expences:BTC-fee', format_float(-fee)))
 117                 txidfee[tx['txid']] = tx['fee']
 118
 119         if 'address' in tx and tx['address'] in addresses:
 120             print("  %s" % addresses[tx['address']])
 121         else:
 122             if 'generate' == tx['category']:
 123                 print("  Income:BTC-mining")
 124             else:
 125                 if amount < Decimal(0):
 126                     print(f"  Assets:unknown:sent:update-script-addr-{tx['address']}")
 127                 else:
 128                     print(f"  Assets:unknown:received:update-script-addr-{tx['address']}")
 129
 130         print()
 131         c = c + 1
 132     print("# Found %d transactions" % c)
 133     if limit == c:
 134         print(f"# Warning: Limit {limit} reached, consider increasing limit.")
 135
 136 def main():
 137     list_txs()
 138
 139 main()
 140 </pre></blockquote></p>
 141
 142 <p>It is more of a proof of concept, and I do not expect it to handle
 143 all edge cases, but it worked for me, and perhaps you can find it
 144 useful too.</p>
 145
 146 <p>To get a more interesting result, it is useful to map accounts sent
 147 to or received from to accounting accounts, using the
 148 <tt>addresses</tt> hash.  As these will be very context dependent, I
 149 leave out my list to allow each user to fill out their own list of
 150 accounts.  Out of the box, 'ledger reg BTC:main' should be able to
 151 show the amount of BTCs present in the wallet at any given time in the
 152 past.  For other and more valuable analysis, a account plan need to be
 153 set up in the <tt>addresses</tt> hash.  Here is an example
 154 transaction:</p>
 155
 156 <p><blockquote><pre>
 157 2024-03-07 17:00 Donated to good cause
 158     Assets:BTC:main                           -0.1 BTC
 159     Assets:BTC:main                       -0.00001 BTC
 160     Expences:BTC-fee                       0.00001 BTC
 161     Expences:donations                         0.1 BTC
 162 </pre></blockquote></p>
 163
 164 <p>It need a running Bitcoin Core daemon running, as it connect to it
 165 using <tt>bitcoin-cli listtransactions * 100000</tt> to extract the
 166 transactions listed in the Wallet.</p>
 167
 168 <p>As usual, if you use Bitcoin and want to show your support of my
 169 activities, please send Bitcoin donations to my address
 170 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 171
 172       </div>
 173       <div class="tags">
 174
 175
 176         Tags: <a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://www.hungry.com/~pere/blog/tags/english">english</a>.
 177
 178
 179       </div>
 180     </div>
 181     <div class="padding"></div>
 182
 183     <div class="entry">
 184       <div class="title">
 185         <a href="http://www.hungry.com/~pere/blog/Updated_Valutakrambod__now_also_with_information_from_NBX.html">Updated Valutakrambod, now also with information from NBX</a>
 186       </div>
 187       <div class="date">
 188         27th February 2021
 189       </div>
 190       <div class="body">
 191         <p>I have neglected the Valutakrambod library for a while, but decided
 192 this weekend to give it a face lift.  I fixed a few minor glitches in
 193 several of the service drivers, where the API had changed since I last
 194 looked at the code.  I also added support for fetching the order book
 195 from the newcomer Norwegian Bitcoin Exchange.</p>
 196
 197 <p>I also decided to migrate the project from github to gitlab in the
 198 process.  If you want a python library for talking to various currency
 199 exchanges, check out
 200 <a href="https://gitlab.com/petterreinholdtsen/valutakrambod">code for
 201 valutakrambod</a>.</p>
 202
 203 <p>This is what the output from '<tt>bin/btc-rates-curses -c</tt>'
 204 looked like a few minutes ago:</p>
 205
 206 <p><blockquote><pre>
 207            Name Pair           Bid         Ask Spread Ftcd    Age   Freq
 208        Bitfinex BTCEUR  39229.0000  39246.0000   0.0%   44     44    nan
 209         Bitmynt BTCEUR  39071.0000  41048.9000   4.8%   43     74    nan
 210          Bitpay BTCEUR  39326.7000         nan   nan%   39    nan    nan
 211        Bitstamp BTCEUR  39398.7900  39417.3200   0.0%    0      0      1
 212            Bl3p BTCEUR  39158.7800  39581.9000   1.1%    0    nan      3
 213        Coinbase BTCEUR  39197.3100  39621.9300   1.1%   38    nan    nan
 214          Kraken+BTCEUR  39432.9000  39433.0000   0.0%    0      0      0
 215         Paymium BTCEUR  39437.2100  39499.9300   0.2%    0   2264    nan
 216         Bitmynt BTCNOK 409750.9600 420516.8500   2.6%   43     74    nan
 217          Bitpay BTCNOK 410332.4000         nan   nan%   39    nan    nan
 218        Coinbase BTCNOK 408675.7300 412813.7900   1.0%   38    nan    nan
 219         MiraiEx BTCNOK 412174.1800 418396.1500   1.5%   34    nan    nan
 220             NBX BTCNOK 405835.9000 408921.4300   0.8%   33    nan    nan
 221        Bitfinex BTCUSD  47341.0000  47355.0000   0.0%   44     53    nan
 222          Bitpay BTCUSD  47388.5100         nan   nan%   39    nan    nan
 223        Coinbase BTCUSD  47153.6500  47651.3700   1.0%   37    nan    nan
 224          Gemini BTCUSD  47416.0900  47439.0500   0.0%   36    336    nan
 225          Hitbtc BTCUSD  47429.9900  47386.7400  -0.1%    0      0      0
 226          Kraken+BTCUSD  47401.7000  47401.8000   0.0%    0      0      0
 227   Exchangerates EURNOK     10.4012     10.4012   0.0%   38  76236    nan
 228      Norgesbank EURNOK     10.4012     10.4012   0.0%   31  76236    nan
 229        Bitstamp EURUSD      1.2030      1.2045   0.1%    2      2      1
 230   Exchangerates EURUSD      1.2121      1.2121   0.0%   38  76236    nan
 231      Norgesbank USDNOK      8.5811      8.5811   0.0%   31  76236    nan
 232 </pre></blockquote></p>
 233
 234 <p>Yes, I notice the negative spread on Hitbtc.  Either I fail to
 235 understand their Websocket API or they are sending bogus data.  I've
 236 seen the same with Kraken, and suspect there is something wrong with
 237 the data they send.</p>
 238
 239 <p>As usual, if you use Bitcoin and want to show your support of my
 240 activities, please send Bitcoin donations to my address
 241 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 242
 243       </div>
 244       <div class="tags">
 245
 246
 247         Tags: <a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://www.hungry.com/~pere/blog/tags/english">english</a>.
 248
 249
 250       </div>
 251     </div>
 252     <div class="padding"></div>
 253
 254     <div class="entry">
 255       <div class="title">
 256         <a href="http://www.hungry.com/~pere/blog/Websocket_from_Kraken_in_Valutakrambod.html">Websocket from Kraken in Valutakrambod</a>
 257       </div>
 258       <div class="date">
 259          1st February 2019
 260       </div>
 261       <div class="body">
 262         <p>Yesterday, the Kraken virtual currency exchange announced
 263 <a href="https://blog.kraken.com/post/2019/websockets-public-api-launching-soon/">their
 264 Websocket service</a>, providing a stream of exchange updates to its
 265 clients.  Getting updated rates quickly is a good idea, so I used
 266 their <a href="https://www.kraken.com/en-us/help/websocket-api">API
 267 documentation</a> and added Websocket support to the Kraken service in
 268 Valutakrambod today.  The python library can now get updates
 269 from Kraken several times per second, instead of every time the
 270 information is polled from the REST API.</p>
 271
 272 <p>If this sound interesting to you, the code for valutakrambod is
 273 available from
 274 <a href="http://github.com/petterreinholdtsen/valutakrambod">github</a>.
 275 Here is example output from the example client displaying rates in a
 276 curses view:</p>
 277
 278 <p><blockquote><pre>
 279            Name Pair   Bid         Ask         Spr    Ftcd    Age
 280  BitcoinsNorway BTCEUR   2959.2800   3021.0500   2.0%   36    nan    nan
 281        Bitfinex BTCEUR   3087.9000   3088.0000   0.0%   36     37    nan
 282         Bitmynt BTCEUR   3001.8700   3135.4600   4.3%   36     52    nan
 283          Bitpay BTCEUR   3003.8659         nan   nan%   35    nan    nan
 284        Bitstamp BTCEUR   3008.0000   3010.2300   0.1%    0      1      1
 285            Bl3p BTCEUR   3000.6700   3010.9300   0.3%    1    nan    nan
 286        Coinbase BTCEUR   2992.1800   3023.2500   1.0%   34    nan    nan
 287          Kraken+BTCEUR   3005.7000   3006.6000   0.0%    0      1      0
 288         Paymium BTCEUR   2940.0100   2993.4400   1.8%    0   2688    nan
 289  BitcoinsNorway BTCNOK  29000.0000  29360.7400   1.2%   36    nan    nan
 290         Bitmynt BTCNOK  29115.6400  29720.7500   2.0%   36     52    nan
 291          Bitpay BTCNOK  29029.2512         nan   nan%   36    nan    nan
 292        Coinbase BTCNOK  28927.6000  29218.5900   1.0%   35    nan    nan
 293         MiraiEx BTCNOK  29097.7000  29741.4200   2.2%   36    nan    nan
 294  BitcoinsNorway BTCUSD   3385.4200   3456.0900   2.0%   36    nan    nan
 295        Bitfinex BTCUSD   3538.5000   3538.6000   0.0%   36     45    nan
 296          Bitpay BTCUSD   3443.4600         nan   nan%   34    nan    nan
 297        Bitstamp BTCUSD   3443.0100   3445.0500   0.1%    0      2      1
 298        Coinbase BTCUSD   3428.1600   3462.6300   1.0%   33    nan    nan
 299          Gemini BTCUSD   3445.8800   3445.8900   0.0%   36    326    nan
 300          Hitbtc BTCUSD   3473.4700   3473.0700  -0.0%    0      0      0
 301          Kraken+BTCUSD   3444.4000   3445.6000   0.0%    0      1      0
 302   Exchangerates EURNOK      9.6685      9.6685   0.0%   36  22226    nan
 303      Norgesbank EURNOK      9.6685      9.6685   0.0%   36  22226    nan
 304        Bitstamp EURUSD      1.1440      1.1462   0.2%    0      1      2
 305   Exchangerates EURUSD      1.1471      1.1471   0.0%   36  22226    nan
 306  BitcoinsNorway LTCEUR      1.0009     22.6538  95.6%   35    nan    nan
 307  BitcoinsNorway LTCNOK    259.0900    264.9300   2.2%   35    nan    nan
 308  BitcoinsNorway LTCUSD      0.0000     29.0000 100.0%   35    nan    nan
 309      Norgesbank USDNOK      8.4286      8.4286   0.0%   36  22226    nan
 310 </pre></blockquote></p>
 311
 312 <p>Yes, I notice the strange negative spread on Hitbtc.  I've seen the
 313 same on Kraken.  Another strange observation is that Kraken some times
 314 announce trade orders a fraction of a second in the future.  I really
 315 wonder what is going on there.</p>
 316
 317 <p>As usual, if you use Bitcoin and want to show your support of my
 318 activities, please send Bitcoin donations to my address
 319 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 320
 321       </div>
 322       <div class="tags">
 323
 324
 325         Tags: <a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://www.hungry.com/~pere/blog/tags/english">english</a>.
 326
 327
 328       </div>
 329     </div>
 330     <div class="padding"></div>
 331
 332     <div class="entry">
 333       <div class="title">
 334         <a href="http://www.hungry.com/~pere/blog/Valutakrambod___A_python_and_bitcoin_love_story.html">Valutakrambod - A python and bitcoin love story</a>
 335       </div>
 336       <div class="date">
 337         29th September 2018
 338       </div>
 339       <div class="body">
 340         <p>It would come as no surprise to anyone that I am interested in
 341 bitcoins and virtual currencies.  I've been keeping an eye on virtual
 342 currencies for many years, and it is part of the reason a few months
 343 ago, I started writing a python library for collecting currency
 344 exchange rates and trade on virtual currency exchanges.  I decided to
 345 name the end result valutakrambod, which perhaps can be translated to
 346 small currency shop.</p>
 347
 348 <p>The library uses the tornado python library to handle HTTP and
 349 websocket connections, and provide a asynchronous system for
 350 connecting to and tracking several services.  The code is available
 351 from
 352 <a href="http://github.com/petterreinholdtsen/valutakrambod">github</a>.</p>
 353
 354 </p>There are two example clients of the library.  One is very simple and
 355 list every updated buy/sell price received from the various services.
 356 This code is started by running bin/btc-rates and call the client code
 357 in valutakrambod/client.py.  The simple client look like this:</p>
 358
 359 <p><blockquote><pre>
 360 import functools
 361 import tornado.ioloop
 362 import valutakrambod
 363 class SimpleClient(object):
 364     def __init__(self):
 365         self.services = []
 366         self.streams = []
 367         pass
 368     def newdata(self, service, pair, changed):
 369         print("%-15s %s-%s: %8.3f %8.3f" % (
 370             service.servicename(),
 371             pair[0],
 372             pair[1],
 373             service.rates[pair]['ask'],
 374             service.rates[pair]['bid'])
 375         )
 376     async def refresh(self, service):
 377         await service.fetchRates(service.wantedpairs)
 378     def run(self):
 379         self.ioloop = tornado.ioloop.IOLoop.current()
 380         self.services = valutakrambod.service.knownServices()
 381         for e in self.services:
 382             service = e()
 383             service.subscribe(self.newdata)
 384             stream = service.websocket()
 385             if stream:
 386                 self.streams.append(stream)
 387             else:
 388                 # Fetch information from non-streaming services immediately
 389                 self.ioloop.call_later(len(self.services),
 390                                        functools.partial(self.refresh, service))
 391                 # as well as regularly
 392                 service.periodicUpdate(60)
 393         for stream in self.streams:
 394             stream.connect()
 395         try:
 396             self.ioloop.start()
 397         except KeyboardInterrupt:
 398             print("Interrupted by keyboard, closing all connections.")
 399             pass
 400         for stream in self.streams:
 401             stream.close()
 402 </pre></blockquote></p>
 403
 404 <p>The library client loops over all known "public" services,
 405 initialises it, subscribes to any updates from the service, checks and
 406 activates websocket streaming if the service provide it, and if no
 407 streaming is supported, fetches information from the service and sets
 408 up a periodic update every 60 seconds.  The output from this client
 409 can look like this:</p>
 410
 411 <p><blockquote><pre>
 412 Bl3p            BTC-EUR: 5687.110 5653.690
 413 Bl3p            BTC-EUR: 5687.110 5653.690
 414 Bl3p            BTC-EUR: 5687.110 5653.690
 415 Hitbtc          BTC-USD: 6594.560 6593.690
 416 Hitbtc          BTC-USD: 6594.560 6593.690
 417 Bl3p            BTC-EUR: 5687.110 5653.690
 418 Hitbtc          BTC-USD: 6594.570 6593.690
 419 Bitstamp        EUR-USD:    1.159    1.154
 420 Hitbtc          BTC-USD: 6594.570 6593.690
 421 Hitbtc          BTC-USD: 6594.580 6593.690
 422 Hitbtc          BTC-USD: 6594.580 6593.690
 423 Hitbtc          BTC-USD: 6594.580 6593.690
 424 Bl3p            BTC-EUR: 5687.110 5653.690
 425 Paymium         BTC-EUR: 5680.000 5620.240
 426 </pre></blockquote></p>
 427
 428 <p>The exchange order book is tracked in addition to the best buy/sell
 429 price, for those that need to know the details.</p>
 430
 431 <p>The other example client is focusing on providing a curses view
 432 with updated buy/sell prices as soon as they are received from the
 433 services.  This code is located in bin/btc-rates-curses and activated
 434 by using the '-c' argument.  Without the argument the "curses" output
 435 is printed without using curses, which is useful for debugging.  The
 436 curses view look like this:</p>
 437
 438 <p><blockquote><pre>
 439            Name Pair   Bid         Ask         Spr    Ftcd    Age
 440  BitcoinsNorway BTCEUR   5591.8400   5711.0800   2.1%   16    nan     60
 441        Bitfinex BTCEUR   5671.0000   5671.2000   0.0%   16     22     59
 442         Bitmynt BTCEUR   5580.8000   5807.5200   3.9%   16     41     60
 443          Bitpay BTCEUR   5663.2700         nan   nan%   15    nan     60
 444        Bitstamp BTCEUR   5664.8400   5676.5300   0.2%    0      1      1
 445            Bl3p BTCEUR   5653.6900   5684.9400   0.5%    0    nan     19
 446        Coinbase BTCEUR   5600.8200   5714.9000   2.0%   15    nan    nan
 447          Kraken BTCEUR   5670.1000   5670.2000   0.0%   14     17     60
 448         Paymium BTCEUR   5620.0600   5680.0000   1.1%    1   7515    nan
 449  BitcoinsNorway BTCNOK  52898.9700  54034.6100   2.1%   16    nan     60
 450         Bitmynt BTCNOK  52960.3200  54031.1900   2.0%   16     41     60
 451          Bitpay BTCNOK  53477.7833         nan   nan%   16    nan     60
 452        Coinbase BTCNOK  52990.3500  54063.0600   2.0%   15    nan    nan
 453         MiraiEx BTCNOK  52856.5300  54100.6000   2.3%   16    nan    nan
 454  BitcoinsNorway BTCUSD   6495.5300   6631.5400   2.1%   16    nan     60
 455        Bitfinex BTCUSD   6590.6000   6590.7000   0.0%   16     23     57
 456          Bitpay BTCUSD   6564.1300         nan   nan%   15    nan     60
 457        Bitstamp BTCUSD   6561.1400   6565.6200   0.1%    0      2      1
 458        Coinbase BTCUSD   6504.0600   6635.9700   2.0%   14    nan    117
 459          Gemini BTCUSD   6567.1300   6573.0700   0.1%   16     89    nan
 460          Hitbtc+BTCUSD   6592.6200   6594.2100   0.0%    0      0      0
 461          Kraken BTCUSD   6565.2000   6570.9000   0.1%   15     17     58
 462   Exchangerates EURNOK      9.4665      9.4665   0.0%   16 107789    nan
 463      Norgesbank EURNOK      9.4665      9.4665   0.0%   16 107789    nan
 464        Bitstamp EURUSD      1.1537      1.1593   0.5%    4      5      1
 465   Exchangerates EURUSD      1.1576      1.1576   0.0%   16 107789    nan
 466  BitcoinsNorway LTCEUR      1.0000     49.0000  98.0%   16    nan    nan
 467  BitcoinsNorway LTCNOK    492.4800    503.7500   2.2%   16    nan     60
 468  BitcoinsNorway LTCUSD      1.0221     49.0000  97.9%   15    nan    nan
 469      Norgesbank USDNOK      8.1777      8.1777   0.0%   16 107789    nan
 470 </pre></blockquote></p>
 471
 472 <p>The code for this client is too complex for a simple blog post, so
 473 you will have to check out the git repository to figure out how it
 474 work.  What I can tell is how the three last numbers on each line
 475 should be interpreted.  The first is how many seconds ago information
 476 was received from the service.  The second is how long ago, according
 477 to the service, the provided information was updated.  The last is an
 478 estimate on how often the buy/sell values change.</p>
 479
 480 <p>If you find this library useful, or would like to improve it, I
 481 would love to hear from you.  Note that for some of the services I've
 482 implemented a trading API.  It might be the topic of a future blog
 483 post.</p>
 484
 485 <p>As usual, if you use Bitcoin and want to show your support of my
 486 activities, please send Bitcoin donations to my address
 487 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 488
 489       </div>
 490       <div class="tags">
 491
 492
 493         Tags: <a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://www.hungry.com/~pere/blog/tags/english">english</a>.
 494
 495
 496       </div>
 497     </div>
 498     <div class="padding"></div>
 499
 500     <div class="entry">
 501       <div class="title">
 502         <a href="http://www.hungry.com/~pere/blog/EU_domstolen_konkluderer_motsatt_av_Skatteetaten_n_r_det_gjelder_Bitcoin.html">EU-domstolen konkluderer motsatt av Skatteetaten når det gjelder Bitcoin</a>
 503       </div>
 504       <div class="date">
 505         22nd October 2015
 506       </div>
 507       <div class="body">
 508         <p>Bitcoin er i litt vinden i Norge for tiden, med
 509 <a href="http://www.nrk.no/ytring/en-digital-robin-hood-1.12604681">kronikk
 510 om bitcoin-overføringer på tvers av landegrensene</A> hos NRK Ytring
 511 for to dager siden og
 512 <a href="https://tv.nrk.no/program/KOID25009815/kapital-bitcoin-en-digital-pengebinge">dokumentar
 513 om bitcoin</a> på NRK 2 i forgårs og i går.  I den sammenhengen er det
 514 spesielt hyggelig med en gladnyhet fra EU om Bitcoin.</p>
 515
 516 <p>I dag konkluderte EU-domstolen at
 517 <a href="http://curia.europa.eu/juris/document/document.jsf?text=&docid=170305&pageIndex=0&doclang=en&mode=req&dir=&occ=first&part=1&cid=604079">Bitcoin-kjøp
 518 fra Bitcoin-børser ikke er MVA-pliktig</a> (sak  C‑264/14).  Fant
 519 <a href="http://www.reuters.com/article/2015/10/22/us-bitcoin-tax-eu-idUSKCN0SG0X920151022">nyheten
 520 først hos Reuters</a>, etter tips fra innehaveren av
 521 <a href="http://www.bitmynt.no/">Bitmynt</a>.  EU-domstolens avgjørelse
 522 er stikk i strid med
 523 <a href="http://www.skatteetaten.no/no/Radgiver/Rettskilder/Uttalelser/Prinsipputtalelser/Bruk-av-bitcoins--skatte--og-avgiftsmessige-konsekvenser/">annonseringen
 524 fra Skatteetaten i 2013</a>, der de konkluderte med at bitcoin er et
 525 «formuesobjekter» som det skulle betales mva på ved kjøp og salg.
 526 Dermed la Skatteetaten opp til dobbel MVA-betaling hvis en kjøpte noe
 527 med Bitcoin fra Norge (først mva på kjøp av Bitcoin, deretter mva på
 528 det en kjøper med Bitcoin).  Jeg lurer på om denne avgjørelsen får
 529 Skatteetaten til å bytte mening.  Gleder meg til fortsettelsen.</p>
 530
 531       </div>
 532       <div class="tags">
 533
 534
 535         Tags: <a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://www.hungry.com/~pere/blog/tags/norsk">norsk</a>.
 536
 537
 538       </div>
 539     </div>
 540     <div class="padding"></div>
 541
 542     <div class="entry">
 543       <div class="title">
 544         <a href="http://www.hungry.com/~pere/blog/A_fist_full_of_non_anonymous_Bitcoins.html">A fist full of non-anonymous Bitcoins</a>
 545       </div>
 546       <div class="date">
 547         29th January 2014
 548       </div>
 549       <div class="body">
 550         <p>Bitcoin is a incredible use of peer to peer communication and
 551 encryption, allowing direct and immediate money transfer without any
 552 central control.  It is sometimes claimed to be ideal for illegal
 553 activity, which I believe is quite a long way from the truth.  At least
 554 I would not conduct illegal money transfers using a system where the
 555 details of every transaction are kept forever.  This point is
 556 investigated in
 557 <a href="https://www.usenix.org/publications/login">USENIX ;login:</a>
 558 from December 2013, in the article
 559 "<a href="https://www.usenix.org/system/files/login/articles/03_meiklejohn-online.pdf">A
 560 Fistful of Bitcoins - Characterizing Payments Among Men with No
 561 Names</a>" by Sarah Meiklejohn, Marjori Pomarole,Grant Jordan, Kirill
 562 Levchenko, Damon McCoy, Geoffrey M. Voelker, and Stefan Savage.  They
 563 analyse the transaction log in the Bitcoin system, using it to find
 564 addresses belong to individuals and organisations and follow the flow
 565 of money from both Bitcoin theft and trades on Silk Road to where the
 566 money end up.  This is how they wrap up their article:</p>
 567
 568 <p><blockquote>
 569 <p>"To demonstrate the usefulness of this type of analysis, we turned
 570 our attention to criminal activity. In the Bitcoin economy, criminal
 571 activity can appear in a number of forms, such as dealing drugs on
 572 Silk Road or simply stealing someone else’s bitcoins. We followed the
 573 flow of bitcoins out of Silk Road (in particular, from one notorious
 574 address) and from a number of highly publicized thefts to see whether
 575 we could track the bitcoins to known services. Although some of the
 576 thieves attempted to use sophisticated mixing techniques (or possibly
 577 mix services) to obscure the flow of bitcoins, for the most part
 578 tracking the bitcoins was quite straightforward, and we ultimately saw
 579 large quantities of bitcoins flow to a variety of exchanges directly
 580 from the point of theft (or the withdrawal from Silk Road).</p>
 581
 582 <p>As acknowledged above, following stolen bitcoins to the point at
 583 which they are deposited into an exchange does not in itself identify
 584 the thief; however, it does enable further de-anonymization in the
 585 case in which certain agencies can determine (through, for example,
 586 subpoena power) the real-world owner of the account into which the
 587 stolen bitcoins were deposited.  Because such exchanges seem to serve
 588 as chokepoints into and out of the Bitcoin economy (i.e., there are
 589 few alternative ways to cash out), we conclude that using Bitcoin for
 590 money laundering or other illicit purposes does not (at least at
 591 present) seem to be particularly attractive."</p>
 592 </blockquote><p>
 593
 594 <p>These researches are not the first to analyse the Bitcoin
 595 transaction log.  The 2011 paper
 596 "<a href="http://arxiv.org/abs/1107.4524">An Analysis of Anonymity in
 597 the Bitcoin System</A>" by Fergal Reid and Martin Harrigan is
 598 summarized like this:</p>
 599
 600 <p><blockquote>
 601 "Anonymity in Bitcoin, a peer-to-peer electronic currency system, is a
 602 complicated issue. Within the system, users are identified by
 603 public-keys only. An attacker wishing to de-anonymize its users will
 604 attempt to construct the one-to-many mapping between users and
 605 public-keys and associate information external to the system with the
 606 users. Bitcoin tries to prevent this attack by storing the mapping of
 607 a user to his or her public-keys on that user's node only and by
 608 allowing each user to generate as many public-keys as required. In
 609 this chapter we consider the topological structure of two networks
 610 derived from Bitcoin's public transaction history. We show that the
 611 two networks have a non-trivial topological structure, provide
 612 complementary views of the Bitcoin system and have implications for
 613 anonymity. We combine these structures with external information and
 614 techniques such as context discovery and flow analysis to investigate
 615 an alleged theft of Bitcoins, which, at the time of the theft, had a
 616 market value of approximately half a million U.S. dollars."
 617 </blockquote></p>
 618
 619 <p>I hope these references can help kill the urban myth that Bitcoin
 620 is anonymous.  It isn't really a good fit for illegal activites.  Use
 621 cash if you need to stay anonymous, at least until regular DNA
 622 sampling of notes and coins become the norm. :)</p>
 623
 624 <p>As usual, if you use Bitcoin and want to show your support of my
 625 activities, please send Bitcoin donations to my address
 626 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 627
 628       </div>
 629       <div class="tags">
 630
 631
 632         Tags: <a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://www.hungry.com/~pere/blog/tags/english">english</a>, <a href="http://www.hungry.com/~pere/blog/tags/personvern">personvern</a>, <a href="http://www.hungry.com/~pere/blog/tags/sikkerhet">sikkerhet</a>, <a href="http://www.hungry.com/~pere/blog/tags/usenix">usenix</a>.
 633
 634
 635       </div>
 636     </div>
 637     <div class="padding"></div>
 638
 639     <div class="entry">
 640       <div class="title">
 641         <a href="http://www.hungry.com/~pere/blog/Bitcoin_er_ikke_anonymt___f_res_Stortinget_bak_lyset_av_finansministeren_.html">Bitcoin er ikke anonymt - føres Stortinget bak lyset av finansministeren?</a>
 642       </div>
 643       <div class="date">
 644         22nd April 2013
 645       </div>
 646       <div class="body">
 647         <p><a href="http://bitcoin.org/">Bitcoin</a> er mye i mediene for
 648 tiden.  Jeg følger med via Mylder for å finne
 649 <a href="http://mylder.no/?drill=bitcoin">artikler som omtaler
 650 temaet</a>, og takket være dette oppdaget jeg at stortingsrepresentant
 651 Ketil Solvik-Olsen fra FrP nylig har spurt finansminister Sigbjørn
 652 Johnsen om hans syn på Bitcoin, og
 653 <a href="http://www.stortinget.no/no/Saker-og-publikasjoner/Sporsmal/Skriftlige-sporsmal-og-svar/Skriftlig-sporsmal/?qid=57052">fått
 654 svar for noen dager siden</a>.  Jeg bet meg spesielt merke til
 655 følgende formulering fra finansministeren:</p>
 656
 657 <p><blockquote>
 658 «Det er også utfordringer ved at handel med Bitcoins er uregulert og
 659 at transaksjonene er anonyme.»
 660 </blockquote></p>
 661
 662 <p>At Bitcoin er anonymt er en myte som spres av både journalister og
 663 andre, så det er ikke veldig overraskende at også finansministeren har
 664 gått på limpinnen.  Det er dog litt rart, da jeg håper at
 665 finansdepartementet ikke baserer seg på rykter og myter når de
 666 besvarer Stortinget.  Men du trenger ikke bare tro på meg som kilde
 667 til påstanden om at Bitcoin ikke er anonymt.  Sondre Rønjom har
 668 <a href="http://blogg.nsm.stat.no/archives/3241">via Sikkerhetsbloggen
 669 hos Nasjonal Sikkerhetsmyndighet</a> uttalt følgende:</p>
 670
 671 <p><blockquote>
 672 «At [bitcoin] i utgangspunktet
 673 <a href="http://arxiv.org/abs/1107.4524"><em>ikke</em> er anonymt</a>,
 674 kommer kanskje som en overraskelse på mange.»
 675 </blockquote></p>
 676
 677 <p>Enhver bevegelse av Bitcoin er offentlig tilgjengelig for alle på
 678 Internet, og en må legge svært mye innsats inn hvis en skal hindre at
 679 nettverksanalyse av transaksjonsloggene kan brukes til å identifisere
 680 brukerne.  F.eks. kan en enkelt se hva jeg har mottatt til min
 681 offentliggjorte mottaksadresse ved å besøke blockexplorer og slå opp
 682 adressen
 683 <a href="http://blockexplorer.com/address/15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a>.
 684 Det virker dermed på meg ganske klart at å påstå at
 685 Bitcoin-transaksjoner er anonyme strengt tatt er å føre Stortinget bak
 686 lyset.</p>
 687
 688 <p>Finansministeren er ikke den eneste som har latt seg forlede av
 689 medieomtalen.  I spørsmålet fra Hr. Solvik-Olsen skriver han at «For
 690 noen dager siden kom den første bitcoin-minibanken på Kypros», hvilket
 691 så vidt jeg har klart å finne ut ikke er riktig.  Det er annonsert
 692 planer om en slik minibank (fra
 693 <a href="http://www.bitcoinatm.com/">BitcoinATM</a>), men jeg finner
 694 intet tegn til at en slik minibank er utplassert noe sted.</p>
 695
 696 <p>Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til
 697 mine aktiviteter, så setter jeg pris på Bitcoin-donasjoner til min
 698 adresse
 699 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 700
 701       </div>
 702       <div class="tags">
 703
 704
 705         Tags: <a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://www.hungry.com/~pere/blog/tags/norsk">norsk</a>, <a href="http://www.hungry.com/~pere/blog/tags/stortinget">stortinget</a>.
 706
 707
 708       </div>
 709     </div>
 710     <div class="padding"></div>
 711
 712     <div class="entry">
 713       <div class="title">
 714         <a href="http://www.hungry.com/~pere/blog/Bitcoin_GUI_now_available_from_Debian_unstable__and_Ubuntu_raring_.html">Bitcoin GUI now available from Debian/unstable (and Ubuntu/raring)</a>
 715       </div>
 716       <div class="date">
 717          2nd February 2013
 718       </div>
 719       <div class="body">
 720         <p>My
 721 <a href="https://people.skolelinux.org/pere/blog/How_to_backport_bitcoin_qt_version_0_7_2_2_to_Debian_Squeeze.html">last
 722 bitcoin related blog post</a> mentioned that the new
 723 <a href="http://packages.qa.debian.org/bitcoin">bitcoin package</a> for
 724 Debian was waiting in NEW.  It was accepted by the Debian ftp-masters
 725 2013-01-19, and have been available in unstable since then.  It was
 726 automatically copied to Ubuntu, and is available in their Raring
 727 version too.</p>
 728
 729 <p>But there is a strange problem with the build that block this new
 730 version from being available on the i386 and kfreebsd-i386
 731 architectures.  For some strange reason, the autobuilders in Debian
 732 for these architectures fail to run the test suite on these
 733 architectures (<a href="http://bugs.debian.org/672524">BTS #672524</a>).
 734 We are so far unable to reproduce it when building it manually, and
 735 no-one have been able to propose a fix.  If you got an idea what is
 736 failing, please let us know via the BTS.</p>
 737
 738 <p>One feature that is annoying me with of the bitcoin client, because
 739 I often run low on disk space, is the fact that the client will exit
 740 if it run short on space (<a href="http://bugs.debian.org/696715">BTS
 741 #696715</a>).  So make sure you have enough disk space when you run
 742 it. :)</p>
 743
 744 <p>As usual, if you use bitcoin and want to show your support of my
 745 activities, please send Bitcoin donations to my address
 746 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 747
 748       </div>
 749       <div class="tags">
 750
 751
 752         Tags: <a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://www.hungry.com/~pere/blog/tags/debian">debian</a>, <a href="http://www.hungry.com/~pere/blog/tags/english">english</a>.
 753
 754
 755       </div>
 756     </div>
 757     <div class="padding"></div>
 758
 759     <div class="entry">
 760       <div class="title">
 761         <a href="http://www.hungry.com/~pere/blog/How_to_backport_bitcoin_qt_version_0_7_2_2_to_Debian_Squeeze.html">How to backport bitcoin-qt version 0.7.2-2 to Debian Squeeze</a>
 762       </div>
 763       <div class="date">
 764         25th December 2012
 765       </div>
 766       <div class="body">
 767         <p>Let me start by wishing you all marry Christmas and a happy new
 768 year!  I hope next year will prove to be a good year.</p>
 769
 770 <p><a href="http://www.bitcoin.org/">Bitcoin</a>, the digital
 771 decentralised "currency" that allow people to transfer bitcoins
 772 between each other with minimal overhead, is a very interesting
 773 experiment.  And as I wrote a few days ago, the bitcoin situation in
 774 <a href="http://www.debian.org/">Debian</a> is about to improve a bit.
 775 The <a href="http://packages.qa.debian.org/bitcoin">new debian source
 776 package</a> (version 0.7.2-2) was uploaded yesterday, and is waiting
 777 in <a href="http://ftp-master.debian.org/new.html">the NEW queue</A>
 778 for one of the ftpmasters to approve the new bitcoin-qt package
 779 name.</p>
 780
 781 <p>And thanks to the great work of Jonas and the rest of the bitcoin
 782 team in Debian, you can easily test the package in Debian Squeeze
 783 using the following steps to get a set of working packages:</p>
 784
 785 <blockquote><pre>
 786 git clone git://git.debian.org/git/collab-maint/bitcoin
 787 cd bitcoin
 788 DEB_MAINTAINER_MODE=1 DEB_BUILD_OPTIONS=noupnp fakeroot debian/rules clean
 789 DEB_BUILD_OPTIONS=noupnp git-buildpackage --git-ignore-new
 790 </pre></blockquote>
 791
 792 <p>You might have to install some build dependencies as well.  The
 793 list of commands should give you two packages, bitcoind and
 794 bitcoin-qt, ready for use in a Squeeze environment.  Note that the
 795 client will download the complete set of bitcoin "blocks", which need
 796 around 5.6 GiB of data on my machine at the moment.  Make sure your
 797 ~/.bitcoin/ directory have lots of spare room if you want to download
 798 all the blocks.  The client will warn if the disk is getting full, so
 799 there is not really a problem if you got too little room, but you will
 800 not be able to get all the features out of the client.</p>
 801
 802 <p>As usual, if you use bitcoin and want to show your support of my
 803 activities, please send Bitcoin donations to my address
 804 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 805
 806       </div>
 807       <div class="tags">
 808
 809
 810         Tags: <a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://www.hungry.com/~pere/blog/tags/debian">debian</a>, <a href="http://www.hungry.com/~pere/blog/tags/english">english</a>.
 811
 812
 813       </div>
 814     </div>
 815     <div class="padding"></div>
 816
 817     <div class="entry">
 818       <div class="title">
 819         <a href="http://www.hungry.com/~pere/blog/A_word_on_bitcoin_support_in_Debian.html">A word on bitcoin support in Debian</a>
 820       </div>
 821       <div class="date">
 822         21st December 2012
 823       </div>
 824       <div class="body">
 825         <p>It has been a while since I wrote about
 826 <a href="http://www.bitcoin.org/">bitcoin</a>, the decentralised
 827 peer-to-peer based crypto-currency, and the reason is simply that I
 828 have been busy elsewhere.  But two days ago, I started looking at the
 829 state of <a href="http://packages.qa.debian.org/bitcoin">bitcoin in
 830 Debian</a> again to try to recover my old bitcoin wallet.  The package
 831 is now maintained by a
 832 <a href="https://alioth.debian.org/projects/pkg-bitcoin/">team of
 833 people</a>, and the grunt work had already been done by this team.  We
 834 owe a huge thank you to all these team members. :)
 835 But I was sad to discover that the bitcoin client is missing in
 836 Wheezy.  It is only available in Sid (and an outdated client from
 837 backports).  The client had several RC bugs registered in BTS blocking
 838 it from entering testing.  To try to help the team and improve the
 839 situation, I spent some time providing patches and triaging the bug
 840 reports.  I also had a look at the bitcoin package available from Matt
 841 Corallo in a
 842 <a href="https://launchpad.net/~bitcoin/+archive/bitcoin">PPA for
 843 Ubuntu</a>, and moved the useful pieces from that version into the
 844 Debian package.</p>
 845
 846 <p>After checking with the main package maintainer Jonas Smedegaard on
 847 IRC, I pushed several patches into the collab-maint git repository to
 848 improve the package.  It now contains fixes for the RC issues (not from
 849 me, but fixed by Scott Howard), build rules for a Qt GUI client
 850 package, konqueror support for the bitcoin: URI and bash completion
 851 setup.  As I work on Debian Squeeze, I also created
 852 <a href="http://lists.alioth.debian.org/pipermail/pkg-bitcoin-devel/Week-of-Mon-20121217/000041.html">a
 853 patch to backport</a> the latest version.  Jonas is going to look at
 854 it and try to integrate it into the git repository before uploading a
 855 new version to unstable.
 856
 857 <p>I would very much like bitcoin to succeed, to get rid of the
 858 centralized control currently exercised in the monetary system.  I
 859 find it completely unacceptable that the USA government is collecting
 860 transaction data for almost all international money transfers (most are done in USD and transaction logs shipped to the spooks), and
 861 that the major credit card companies can block legal money
 862 transactions to Wikileaks.  But for bitcoin to succeed, more people
 863 need to use bitcoins, and more people need to accept bitcoins when
 864 they sell products and services.  Improving the bitcoin support in
 865 Debian is a small step in the right direction, but not enough.
 866 Unfortunately the user experience when browsing the web and wanting to
 867 pay with bitcoin is still not very good.  The bitcoin: URI is a step
 868 in the right direction, but need to work in most or every browser in
 869 use.  Also the bitcoin-qt client is too heavy to fire up to do a
 870 quick transaction.  I believe there are other clients available, but
 871 have not tested them.</p>
 872
 873 <p>My
 874 <a href="https://people.skolelinux.org/pere/blog/Now_accepting_bitcoins___anonymous_and_distributed_p2p_crypto_money.html">experiment
 875 with bitcoins</a> showed that at least some of my readers use bitcoin.
 876 I received 20.15 BTC so far on the address I provided in my blog two
 877 years ago, as can be
 878 <a href="http://blockexplorer.com/address/15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">seen
 879 on the blockexplorer service</a>.  Thank you everyone for your
 880 donation.  The blockexplorer service demonstrates quite well that
 881 bitcoin is not quite anonymous and untracked. :) I wonder if the
 882 number of users have gone up since then.  If you use bitcoin and want
 883 to show your support of my activity, please send Bitcoin donations to
 884 the same address as last time,
 885 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 886
 887       </div>
 888       <div class="tags">
 889
 890
 891         Tags: <a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://www.hungry.com/~pere/blog/tags/debian">debian</a>, <a href="http://www.hungry.com/~pere/blog/tags/english">english</a>.
 892
 893
 894       </div>
 895     </div>
 896     <div class="padding"></div>
 897
 898     <div class="entry">
 899       <div class="title">
 900         <a href="http://www.hungry.com/~pere/blog/The_European_Central_Bank__ECB__take_a_look_at_bitcoin.html">The European Central Bank (ECB) take a look at bitcoin</a>
 901       </div>
 902       <div class="date">
 903          4th November 2012
 904       </div>
 905       <div class="body">
 906         <p>Slashdot just ran a story about the European Central Bank (ECB)
 907 <a href="http://www.ecb.europa.eu/pub/pdf/other/virtualcurrencyschemes201210en.pdf">releasing
 908 a report (PDF)</a> about virtual currencies and
 909 <a href="http://www.bitcoin.org/">bitcoin</a>.  It is interesting to
 910 see how a member of the bitcoin community
 911 <a href="http://blog.bitinstant.com/blog/2012/10/30/the-ecb-report-on-bitcoin-and-virtual-currencies.html">receive
 912 the report</a>.  As for the future, I suspect the central banks and
 913 the governments will outlaw bitcoin if it gain any popularity, to avoid
 914 competition.  My thoughts go to the
 915 <a href="http://en.wikipedia.org/wiki/Wörgl">Wörgl experiment</a> with
 916 negative inflation on cash which was such a success that it was
 917 terminated by the Austrian National Bank in 1933.  A successful
 918 alternative would be a threat to the current money system and gain
 919 powerful forces to work against it.</p>
 920
 921 <p>While checking out the current status of bitcoin, I also discovered
 922 that the community already seem to have
 923 <a href="http://www.theverge.com/2012/8/27/3271637/bitcoin-savings-trust-pyramid-scheme-shuts-down">experienced
 924 its first pyramid game / Ponzi scheme</a>.  Not very surprising, given
 925 how members of "small" communities tend to trust each other.  I guess
 926 enterprising crocks will try again and again, as they do anywhere
 927 wealth is available.</p>
 928
 929       </div>
 930       <div class="tags">
 931
 932
 933         Tags: <a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://www.hungry.com/~pere/blog/tags/english">english</a>, <a href="http://www.hungry.com/~pere/blog/tags/personvern">personvern</a>, <a href="http://www.hungry.com/~pere/blog/tags/sikkerhet">sikkerhet</a>.
 934
 935
 936       </div>
 937     </div>
 938     <div class="padding"></div>
 939
 940     <div class="entry">
 941       <div class="title">
 942         <a href="http://www.hungry.com/~pere/blog/Some_thoughts_on_BitCoins.html">Some thoughts on BitCoins</a>
 943       </div>
 944       <div class="date">
 945         11th December 2010
 946       </div>
 947       <div class="body">
 948         <p>As I continue to explore
 949 <a href="http://www.bitcoin.org/">BitCoin</a>, I've starting to wonder
 950 what properties the system have, and how it will be affected by laws
 951 and regulations here in Norway.  Here are some random notes.</p>
 952
 953 <p>One interesting thing to note is that since the transactions are
 954 verified using a peer to peer network, all details about a transaction
 955 is known to everyone.  This means that if a BitCoin address has been
 956 published like I did with mine in my initial post about BitCoin, it is
 957 possible for everyone to see how many BitCoins have been transfered to
 958 that address.  There is even a web service to look at the details for
 959 all transactions.  There I can see that my address
 960 <a href="http://blockexplorer.com/address/15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a>
 961 have received 16.06 Bitcoin, the
 962 <a href="http://blockexplorer.com/address/1LfdGnGuWkpSJgbQySxxCWhv8MHqvwst3">1LfdGnGuWkpSJgbQySxxCWhv8MHqvwst3</a>
 963 address of Simon Phipps have received 181.97 BitCoin and the address
 964 <a href="http://blockexplorer.com/address/1MCwBbhNGp5hRm5rC1Aims2YFRe2SXPYKt">1MCwBbhNGp5hRm5rC1Aims2YFRe2SXPYKt</A>
 965 of EFF have received 2447.38 BitCoins so far.  Thank you to each and
 966 every one of you that donated bitcoins to support my activity. The
 967 fact that anyone can see how much money was transfered to a given
 968 address make it more obvious why the BitCoin community recommend to
 969 generate and hand out a new address for each transaction.  I'm told
 970 there is no way to track which addresses belong to a given person or
 971 organisation without the person or organisation revealing it
 972 themselves, as Simon, EFF and I have done.</p>
 973
 974 <p>In Norway, and in most other countries, there are laws and
 975 regulations limiting how much money one can transfer across the border
 976 without declaring it.  There are money laundering, tax and accounting
 977 laws and regulations I would expect to apply to the use of BitCoin.
 978 If the Skolelinux foundation
 979 (<a href="http://linuxiskolen.no/slxdebianlabs/donations.html">SLX
 980 Debian Labs</a>) were to accept donations in BitCoin in addition to
 981 normal bank transfers like EFF is doing, how should this be accounted?
 982 Given that it is impossible to know if money can cross the border or
 983 not, should everything or nothing be declared?  What exchange rate
 984 should be used when calculating taxes?  Would receivers have to pay
 985 income tax if the foundation were to pay Skolelinux contributors in
 986 BitCoin?  I have no idea, but it would be interesting to know.</p>
 987
 988 <p>For a currency to be useful and successful, it must be trusted and
 989 accepted by a lot of users.  It must be possible to get easy access to
 990 the currency (as a wage or using currency exchanges), and it must be
 991 easy to spend it.  At the moment BitCoin seem fairly easy to get
 992 access to, but there are very few places to spend it.  I am not really
 993 a regular user of any of the vendor types currently accepting BitCoin,
 994 so I wonder when my kind of shop would start accepting BitCoins.  I
 995 would like to buy electronics, travels and subway tickets, not herbs
 996 and books. :) The currency is young, and this will improve over time
 997 if it become popular, but I suspect regular banks will start to lobby
 998 to get BitCoin declared illegal if it become popular.  I'm sure they
 999 will claim it is helping fund terrorism and money laundering (which
1000 probably would be true, as is any currency in existence), but I
1001 believe the problems should be solved elsewhere and not by blaming
1002 currencies.</p>
1003
1004 <p>The process of creating new BitCoins is called mining, and it is
1005 CPU intensive process that depend on a bit of luck as well (as one is
1006 competing against all the other miners currently spending CPU cycles
1007 to see which one get the next lump of cash).  The "winner" get 50
1008 BitCoin when this happen.  Yesterday I came across the obvious way to
1009 join forces to increase ones changes of getting at least some coins,
1010 by coordinating the work on mining BitCoins across several machines
1011 and people, and sharing the result if one is lucky and get the 50
1012 BitCoins.  Check out
1013 <a href="http://www.bluishcoder.co.nz/bitcoin-pool/">BitCoin Pool</a>
1014 if this sounds interesting.  I have not had time to try to set up a
1015 machine to participate there yet, but have seen that running on ones
1016 own for a few days have not yield any BitCoins througth mining
1017 yet.</p>
1018
1019 <p>Update 2010-12-15: Found an <a
1020 href="http://inertia.posterous.com/reply-to-the-underground-economist-why-bitcoi">interesting
1021 criticism</a> of bitcoin.  Not quite sure how valid it is, but thought
1022 it was interesting to read.  The arguments presented seem to be
1023 equally valid for gold, which was used as a currency for many years.</p>
1024
1025       </div>
1026       <div class="tags">
1027
1028
1029         Tags: <a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://www.hungry.com/~pere/blog/tags/debian">debian</a>, <a href="http://www.hungry.com/~pere/blog/tags/english">english</a>, <a href="http://www.hungry.com/~pere/blog/tags/personvern">personvern</a>, <a href="http://www.hungry.com/~pere/blog/tags/sikkerhet">sikkerhet</a>.
1030
1031
1032       </div>
1033     </div>
1034     <div class="padding"></div>
1035
1036     <div class="entry">
1037       <div class="title">
1038         <a href="http://www.hungry.com/~pere/blog/Now_accepting_bitcoins___anonymous_and_distributed_p2p_crypto_money.html">Now accepting bitcoins - anonymous and distributed p2p crypto-money</a>
1039       </div>
1040       <div class="date">
1041         10th December 2010
1042       </div>
1043       <div class="body">
1044         <p>With this weeks lawless
1045 <a href="http://www.salon.com/news/opinion/glenn_greenwald/2010/12/06/wikileaks/index.html">governmental
1046 attacks</a> on Wikileak and
1047 <a href="http://www.salon.com/technology/dan_gillmor/2010/12/06/war_on_speech">free
1048 speech</a>, it has become obvious that PayPal, visa and mastercard can
1049 not be trusted to handle money transactions.
1050 A blog post from
1051 <a href="http://webmink.com/2010/12/06/now-accepting-bitcoin/">Simon
1052 Phipps on bitcoin</a> reminded me about a project that a friend of
1053 mine mentioned earlier.  I decided to follow Simon's example, and get
1054 involved with <a href="http://www.bitcoin.org/">BitCoin</a>.  I got
1055 some help from my friend to get it all running, and he even handed me
1056 some bitcoins to get started.  I even donated a few bitcoins to Simon
1057 for helping me remember BitCoin.</p>
1058
1059 <p>So, what is bitcoins, you probably wonder?  It is a digital
1060 crypto-currency, decentralised and handled using peer-to-peer
1061 networks.  It allows anonymous transactions and prohibits central
1062 control over the transactions, making it impossible for governments
1063 and companies alike to block donations and other transactions.  The
1064 source is free software, and while the key dependency wxWidgets 2.9
1065 for the graphical user interface is missing in Debian, the command
1066 line client builds just fine.  Hopefully Jonas
1067 <a href="http://bugs.debian.org/578157">will get the package into
1068 Debian</a> soon.</p>
1069
1070 <p>Bitcoins can be converted to other currencies, like USD and EUR.
1071 There are <a href="http://www.bitcoin.org/trade">companies accepting
1072 bitcoins</a> when selling services and goods, and there are even
1073 currency "stock" markets where the exchange rate is decided.  There
1074 are not many users so far, but the concept seems promising.  If you
1075 want to get started and lack a friend with any bitcoins to spare,
1076 you can even get
1077 <a href="https://freebitcoins.appspot.com/">some for free</a> (0.05
1078 bitcoin at the time of writing).  Use
1079 <a href="http://www.bitcoinwatch.com/">BitcoinWatch</a> to keep an eye
1080 on the current exchange rates.</p>
1081
1082 <p>As an experiment, I have decided to set up bitcoind on one of my
1083 machines.  If you want to support my activity, please send Bitcoin
1084 donations to the address
1085 <b>15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</b>.  Thank you!</p>
1086
1087       </div>
1088       <div class="tags">
1089
1090
1091         Tags: <a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin</a>, <a href="http://www.hungry.com/~pere/blog/tags/debian">debian</a>, <a href="http://www.hungry.com/~pere/blog/tags/english">english</a>, <a href="http://www.hungry.com/~pere/blog/tags/personvern">personvern</a>, <a href="http://www.hungry.com/~pere/blog/tags/sikkerhet">sikkerhet</a>.
1092
1093
1094       </div>
1095     </div>
1096     <div class="padding"></div>
1097
1098     <p style="text-align: right;"><a href="bitcoin.rss"><img src="http://www.hungry.com/~pere/blog/xml.gif" alt="RSS Feed" width="36" height="14" /></a></p>
1099     <div id="sidebar">
1100
1101
1102
1103 <h2>Archive</h2>
1104 <ul>
1105
1106 <li>2025
1107 <ul>
1108
1109 <li><a href="http://www.hungry.com/~pere/blog/archive/2025/01/">January (1)</a></li>
1110
1111 </ul></li>
1112
1113 <li>2024
1114 <ul>
1115
1116 <li><a href="http://www.hungry.com/~pere/blog/archive/2024/01/">January (1)</a></li>
1117
1118 <li><a href="http://www.hungry.com/~pere/blog/archive/2024/02/">February (1)</a></li>
1119
1120 <li><a href="http://www.hungry.com/~pere/blog/archive/2024/03/">March (2)</a></li>
1121
1122 <li><a href="http://www.hungry.com/~pere/blog/archive/2024/04/">April (3)</a></li>
1123
1124 <li><a href="http://www.hungry.com/~pere/blog/archive/2024/05/">May (1)</a></li>
1125
1126 <li><a href="http://www.hungry.com/~pere/blog/archive/2024/06/">June (1)</a></li>
1127
1128 <li><a href="http://www.hungry.com/~pere/blog/archive/2024/07/">July (2)</a></li>
1129
1130 <li><a href="http://www.hungry.com/~pere/blog/archive/2024/12/">December (1)</a></li>
1131
1132 </ul></li>
1133
1134 <li>2023
1135 <ul>
1136
1137 <li><a href="http://www.hungry.com/~pere/blog/archive/2023/01/">January (3)</a></li>
1138
1139 <li><a href="http://www.hungry.com/~pere/blog/archive/2023/02/">February (1)</a></li>
1140
1141 <li><a href="http://www.hungry.com/~pere/blog/archive/2023/04/">April (2)</a></li>
1142
1143 <li><a href="http://www.hungry.com/~pere/blog/archive/2023/05/">May (3)</a></li>
1144
1145 <li><a href="http://www.hungry.com/~pere/blog/archive/2023/06/">June (1)</a></li>
1146
1147 <li><a href="http://www.hungry.com/~pere/blog/archive/2023/08/">August (1)</a></li>
1148
1149 <li><a href="http://www.hungry.com/~pere/blog/archive/2023/09/">September (1)</a></li>
1150
1151 <li><a href="http://www.hungry.com/~pere/blog/archive/2023/10/">October (1)</a></li>
1152
1153 <li><a href="http://www.hungry.com/~pere/blog/archive/2023/11/">November (4)</a></li>
1154
1155 <li><a href="http://www.hungry.com/~pere/blog/archive/2023/12/">December (1)</a></li>
1156
1157 </ul></li>
1158
1159 <li>2022
1160 <ul>
1161
1162 <li><a href="http://www.hungry.com/~pere/blog/archive/2022/02/">February (1)</a></li>
1163
1164 <li><a href="http://www.hungry.com/~pere/blog/archive/2022/03/">March (3)</a></li>
1165
1166 <li><a href="http://www.hungry.com/~pere/blog/archive/2022/04/">April (2)</a></li>
1167
1168 <li><a href="http://www.hungry.com/~pere/blog/archive/2022/06/">June (2)</a></li>
1169
1170 <li><a href="http://www.hungry.com/~pere/blog/archive/2022/07/">July (1)</a></li>
1171
1172 <li><a href="http://www.hungry.com/~pere/blog/archive/2022/09/">September (1)</a></li>
1173
1174 <li><a href="http://www.hungry.com/~pere/blog/archive/2022/10/">October (1)</a></li>
1175
1176 <li><a href="http://www.hungry.com/~pere/blog/archive/2022/12/">December (1)</a></li>
1177
1178 </ul></li>
1179
1180 <li>2021
1181 <ul>
1182
1183 <li><a href="http://www.hungry.com/~pere/blog/archive/2021/01/">January (2)</a></li>
1184
1185 <li><a href="http://www.hungry.com/~pere/blog/archive/2021/02/">February (1)</a></li>
1186
1187 <li><a href="http://www.hungry.com/~pere/blog/archive/2021/05/">May (1)</a></li>
1188
1189 <li><a href="http://www.hungry.com/~pere/blog/archive/2021/06/">June (1)</a></li>
1190
1191 <li><a href="http://www.hungry.com/~pere/blog/archive/2021/07/">July (3)</a></li>
1192
1193 <li><a href="http://www.hungry.com/~pere/blog/archive/2021/08/">August (1)</a></li>
1194
1195 <li><a href="http://www.hungry.com/~pere/blog/archive/2021/09/">September (1)</a></li>
1196
1197 <li><a href="http://www.hungry.com/~pere/blog/archive/2021/10/">October (1)</a></li>
1198
1199 <li><a href="http://www.hungry.com/~pere/blog/archive/2021/12/">December (1)</a></li>
1200
1201 </ul></li>
1202
1203 <li>2020
1204 <ul>
1205
1206 <li><a href="http://www.hungry.com/~pere/blog/archive/2020/02/">February (2)</a></li>
1207
1208 <li><a href="http://www.hungry.com/~pere/blog/archive/2020/03/">March (2)</a></li>
1209
1210 <li><a href="http://www.hungry.com/~pere/blog/archive/2020/04/">April (2)</a></li>
1211
1212 <li><a href="http://www.hungry.com/~pere/blog/archive/2020/05/">May (3)</a></li>
1213
1214 <li><a href="http://www.hungry.com/~pere/blog/archive/2020/06/">June (2)</a></li>
1215
1216 <li><a href="http://www.hungry.com/~pere/blog/archive/2020/07/">July (1)</a></li>
1217
1218 <li><a href="http://www.hungry.com/~pere/blog/archive/2020/09/">September (1)</a></li>
1219
1220 <li><a href="http://www.hungry.com/~pere/blog/archive/2020/10/">October (1)</a></li>
1221
1222 <li><a href="http://www.hungry.com/~pere/blog/archive/2020/11/">November (1)</a></li>
1223
1224 </ul></li>
1225
1226 <li>2019
1227 <ul>
1228
1229 <li><a href="http://www.hungry.com/~pere/blog/archive/2019/01/">January (4)</a></li>
1230
1231 <li><a href="http://www.hungry.com/~pere/blog/archive/2019/02/">February (3)</a></li>
1232
1233 <li><a href="http://www.hungry.com/~pere/blog/archive/2019/03/">March (3)</a></li>
1234
1235 <li><a href="http://www.hungry.com/~pere/blog/archive/2019/05/">May (2)</a></li>
1236
1237 <li><a href="http://www.hungry.com/~pere/blog/archive/2019/06/">June (5)</a></li>
1238
1239 <li><a href="http://www.hungry.com/~pere/blog/archive/2019/07/">July (2)</a></li>
1240
1241 <li><a href="http://www.hungry.com/~pere/blog/archive/2019/08/">August (1)</a></li>
1242
1243 <li><a href="http://www.hungry.com/~pere/blog/archive/2019/09/">September (1)</a></li>
1244
1245 <li><a href="http://www.hungry.com/~pere/blog/archive/2019/11/">November (1)</a></li>
1246
1247 <li><a href="http://www.hungry.com/~pere/blog/archive/2019/12/">December (4)</a></li>
1248
1249 </ul></li>
1250
1251 <li>2018
1252 <ul>
1253
1254 <li><a href="http://www.hungry.com/~pere/blog/archive/2018/01/">January (1)</a></li>
1255
1256 <li><a href="http://www.hungry.com/~pere/blog/archive/2018/02/">February (5)</a></li>
1257
1258 <li><a href="http://www.hungry.com/~pere/blog/archive/2018/03/">March (5)</a></li>
1259
1260 <li><a href="http://www.hungry.com/~pere/blog/archive/2018/04/">April (3)</a></li>
1261
1262 <li><a href="http://www.hungry.com/~pere/blog/archive/2018/06/">June (2)</a></li>
1263
1264 <li><a href="http://www.hungry.com/~pere/blog/archive/2018/07/">July (5)</a></li>
1265
1266 <li><a href="http://www.hungry.com/~pere/blog/archive/2018/08/">August (3)</a></li>
1267
1268 <li><a href="http://www.hungry.com/~pere/blog/archive/2018/09/">September (3)</a></li>
1269
1270 <li><a href="http://www.hungry.com/~pere/blog/archive/2018/10/">October (5)</a></li>
1271
1272 <li><a href="http://www.hungry.com/~pere/blog/archive/2018/11/">November (2)</a></li>
1273
1274 <li><a href="http://www.hungry.com/~pere/blog/archive/2018/12/">December (4)</a></li>
1275
1276 </ul></li>
1277
1278 <li>2017
1279 <ul>
1280
1281 <li><a href="http://www.hungry.com/~pere/blog/archive/2017/01/">January (4)</a></li>
1282
1283 <li><a href="http://www.hungry.com/~pere/blog/archive/2017/02/">February (3)</a></li>
1284
1285 <li><a href="http://www.hungry.com/~pere/blog/archive/2017/03/">March (5)</a></li>
1286
1287 <li><a href="http://www.hungry.com/~pere/blog/archive/2017/04/">April (2)</a></li>
1288
1289 <li><a href="http://www.hungry.com/~pere/blog/archive/2017/06/">June (5)</a></li>
1290
1291 <li><a href="http://www.hungry.com/~pere/blog/archive/2017/07/">July (1)</a></li>
1292
1293 <li><a href="http://www.hungry.com/~pere/blog/archive/2017/08/">August (1)</a></li>
1294
1295 <li><a href="http://www.hungry.com/~pere/blog/archive/2017/09/">September (3)</a></li>
1296
1297 <li><a href="http://www.hungry.com/~pere/blog/archive/2017/10/">October (5)</a></li>
1298
1299 <li><a href="http://www.hungry.com/~pere/blog/archive/2017/11/">November (3)</a></li>
1300
1301 <li><a href="http://www.hungry.com/~pere/blog/archive/2017/12/">December (4)</a></li>
1302
1303 </ul></li>
1304
1305 <li>2016
1306 <ul>
1307
1308 <li><a href="http://www.hungry.com/~pere/blog/archive/2016/01/">January (3)</a></li>
1309
1310 <li><a href="http://www.hungry.com/~pere/blog/archive/2016/02/">February (2)</a></li>
1311
1312 <li><a href="http://www.hungry.com/~pere/blog/archive/2016/03/">March (3)</a></li>
1313
1314 <li><a href="http://www.hungry.com/~pere/blog/archive/2016/04/">April (8)</a></li>
1315
1316 <li><a href="http://www.hungry.com/~pere/blog/archive/2016/05/">May (8)</a></li>
1317
1318 <li><a href="http://www.hungry.com/~pere/blog/archive/2016/06/">June (2)</a></li>
1319
1320 <li><a href="http://www.hungry.com/~pere/blog/archive/2016/07/">July (2)</a></li>
1321
1322 <li><a href="http://www.hungry.com/~pere/blog/archive/2016/08/">August (5)</a></li>
1323
1324 <li><a href="http://www.hungry.com/~pere/blog/archive/2016/09/">September (2)</a></li>
1325
1326 <li><a href="http://www.hungry.com/~pere/blog/archive/2016/10/">October (3)</a></li>
1327
1328 <li><a href="http://www.hungry.com/~pere/blog/archive/2016/11/">November (8)</a></li>
1329
1330 <li><a href="http://www.hungry.com/~pere/blog/archive/2016/12/">December (5)</a></li>
1331
1332 </ul></li>
1333
1334 <li>2015
1335 <ul>
1336
1337 <li><a href="http://www.hungry.com/~pere/blog/archive/2015/01/">January (7)</a></li>
1338
1339 <li><a href="http://www.hungry.com/~pere/blog/archive/2015/02/">February (6)</a></li>
1340
1341 <li><a href="http://www.hungry.com/~pere/blog/archive/2015/03/">March (1)</a></li>
1342
1343 <li><a href="http://www.hungry.com/~pere/blog/archive/2015/04/">April (4)</a></li>
1344
1345 <li><a href="http://www.hungry.com/~pere/blog/archive/2015/05/">May (3)</a></li>
1346
1347 <li><a href="http://www.hungry.com/~pere/blog/archive/2015/06/">June (4)</a></li>
1348
1349 <li><a href="http://www.hungry.com/~pere/blog/archive/2015/07/">July (6)</a></li>
1350
1351 <li><a href="http://www.hungry.com/~pere/blog/archive/2015/08/">August (2)</a></li>
1352
1353 <li><a href="http://www.hungry.com/~pere/blog/archive/2015/09/">September (2)</a></li>
1354
1355 <li><a href="http://www.hungry.com/~pere/blog/archive/2015/10/">October (9)</a></li>
1356
1357 <li><a href="http://www.hungry.com/~pere/blog/archive/2015/11/">November (6)</a></li>
1358
1359 <li><a href="http://www.hungry.com/~pere/blog/archive/2015/12/">December (3)</a></li>
1360
1361 </ul></li>
1362
1363 <li>2014
1364 <ul>
1365
1366 <li><a href="http://www.hungry.com/~pere/blog/archive/2014/01/">January (2)</a></li>
1367
1368 <li><a href="http://www.hungry.com/~pere/blog/archive/2014/02/">February (3)</a></li>
1369
1370 <li><a href="http://www.hungry.com/~pere/blog/archive/2014/03/">March (8)</a></li>
1371
1372 <li><a href="http://www.hungry.com/~pere/blog/archive/2014/04/">April (7)</a></li>
1373
1374 <li><a href="http://www.hungry.com/~pere/blog/archive/2014/05/">May (1)</a></li>
1375
1376 <li><a href="http://www.hungry.com/~pere/blog/archive/2014/06/">June (2)</a></li>
1377
1378 <li><a href="http://www.hungry.com/~pere/blog/archive/2014/07/">July (2)</a></li>
1379
1380 <li><a href="http://www.hungry.com/~pere/blog/archive/2014/08/">August (2)</a></li>
1381
1382 <li><a href="http://www.hungry.com/~pere/blog/archive/2014/09/">September (5)</a></li>
1383
1384 <li><a href="http://www.hungry.com/~pere/blog/archive/2014/10/">October (6)</a></li>
1385
1386 <li><a href="http://www.hungry.com/~pere/blog/archive/2014/11/">November (3)</a></li>
1387
1388 <li><a href="http://www.hungry.com/~pere/blog/archive/2014/12/">December (5)</a></li>
1389
1390 </ul></li>
1391
1392 <li>2013
1393 <ul>
1394
1395 <li><a href="http://www.hungry.com/~pere/blog/archive/2013/01/">January (11)</a></li>
1396
1397 <li><a href="http://www.hungry.com/~pere/blog/archive/2013/02/">February (9)</a></li>
1398
1399 <li><a href="http://www.hungry.com/~pere/blog/archive/2013/03/">March (9)</a></li>
1400
1401 <li><a href="http://www.hungry.com/~pere/blog/archive/2013/04/">April (6)</a></li>
1402
1403 <li><a href="http://www.hungry.com/~pere/blog/archive/2013/05/">May (9)</a></li>
1404
1405 <li><a href="http://www.hungry.com/~pere/blog/archive/2013/06/">June (10)</a></li>
1406
1407 <li><a href="http://www.hungry.com/~pere/blog/archive/2013/07/">July (7)</a></li>
1408
1409 <li><a href="http://www.hungry.com/~pere/blog/archive/2013/08/">August (3)</a></li>
1410
1411 <li><a href="http://www.hungry.com/~pere/blog/archive/2013/09/">September (5)</a></li>
1412
1413 <li><a href="http://www.hungry.com/~pere/blog/archive/2013/10/">October (7)</a></li>
1414
1415 <li><a href="http://www.hungry.com/~pere/blog/archive/2013/11/">November (9)</a></li>
1416
1417 <li><a href="http://www.hungry.com/~pere/blog/archive/2013/12/">December (3)</a></li>
1418
1419 </ul></li>
1420
1421 <li>2012
1422 <ul>
1423
1424 <li><a href="http://www.hungry.com/~pere/blog/archive/2012/01/">January (7)</a></li>
1425
1426 <li><a href="http://www.hungry.com/~pere/blog/archive/2012/02/">February (10)</a></li>
1427
1428 <li><a href="http://www.hungry.com/~pere/blog/archive/2012/03/">March (17)</a></li>
1429
1430 <li><a href="http://www.hungry.com/~pere/blog/archive/2012/04/">April (12)</a></li>
1431
1432 <li><a href="http://www.hungry.com/~pere/blog/archive/2012/05/">May (12)</a></li>
1433
1434 <li><a href="http://www.hungry.com/~pere/blog/archive/2012/06/">June (20)</a></li>
1435
1436 <li><a href="http://www.hungry.com/~pere/blog/archive/2012/07/">July (17)</a></li>
1437
1438 <li><a href="http://www.hungry.com/~pere/blog/archive/2012/08/">August (6)</a></li>
1439
1440 <li><a href="http://www.hungry.com/~pere/blog/archive/2012/09/">September (9)</a></li>
1441
1442 <li><a href="http://www.hungry.com/~pere/blog/archive/2012/10/">October (17)</a></li>
1443
1444 <li><a href="http://www.hungry.com/~pere/blog/archive/2012/11/">November (10)</a></li>
1445
1446 <li><a href="http://www.hungry.com/~pere/blog/archive/2012/12/">December (7)</a></li>
1447
1448 </ul></li>
1449
1450 <li>2011
1451 <ul>
1452
1453 <li><a href="http://www.hungry.com/~pere/blog/archive/2011/01/">January (16)</a></li>
1454
1455 <li><a href="http://www.hungry.com/~pere/blog/archive/2011/02/">February (6)</a></li>
1456
1457 <li><a href="http://www.hungry.com/~pere/blog/archive/2011/03/">March (6)</a></li>
1458
1459 <li><a href="http://www.hungry.com/~pere/blog/archive/2011/04/">April (7)</a></li>
1460
1461 <li><a href="http://www.hungry.com/~pere/blog/archive/2011/05/">May (3)</a></li>
1462
1463 <li><a href="http://www.hungry.com/~pere/blog/archive/2011/06/">June (2)</a></li>
1464
1465 <li><a href="http://www.hungry.com/~pere/blog/archive/2011/07/">July (7)</a></li>
1466
1467 <li><a href="http://www.hungry.com/~pere/blog/archive/2011/08/">August (6)</a></li>
1468
1469 <li><a href="http://www.hungry.com/~pere/blog/archive/2011/09/">September (4)</a></li>
1470
1471 <li><a href="http://www.hungry.com/~pere/blog/archive/2011/10/">October (2)</a></li>
1472
1473 <li><a href="http://www.hungry.com/~pere/blog/archive/2011/11/">November (3)</a></li>
1474
1475 <li><a href="http://www.hungry.com/~pere/blog/archive/2011/12/">December (1)</a></li>
1476
1477 </ul></li>
1478
1479 <li>2010
1480 <ul>
1481
1482 <li><a href="http://www.hungry.com/~pere/blog/archive/2010/01/">January (2)</a></li>
1483
1484 <li><a href="http://www.hungry.com/~pere/blog/archive/2010/02/">February (1)</a></li>
1485
1486 <li><a href="http://www.hungry.com/~pere/blog/archive/2010/03/">March (3)</a></li>
1487
1488 <li><a href="http://www.hungry.com/~pere/blog/archive/2010/04/">April (3)</a></li>
1489
1490 <li><a href="http://www.hungry.com/~pere/blog/archive/2010/05/">May (9)</a></li>
1491
1492 <li><a href="http://www.hungry.com/~pere/blog/archive/2010/06/">June (14)</a></li>
1493
1494 <li><a href="http://www.hungry.com/~pere/blog/archive/2010/07/">July (12)</a></li>
1495
1496 <li><a href="http://www.hungry.com/~pere/blog/archive/2010/08/">August (13)</a></li>
1497
1498 <li><a href="http://www.hungry.com/~pere/blog/archive/2010/09/">September (7)</a></li>
1499
1500 <li><a href="http://www.hungry.com/~pere/blog/archive/2010/10/">October (9)</a></li>
1501
1502 <li><a href="http://www.hungry.com/~pere/blog/archive/2010/11/">November (13)</a></li>
1503
1504 <li><a href="http://www.hungry.com/~pere/blog/archive/2010/12/">December (12)</a></li>
1505
1506 </ul></li>
1507
1508 <li>2009
1509 <ul>
1510
1511 <li><a href="http://www.hungry.com/~pere/blog/archive/2009/01/">January (8)</a></li>
1512
1513 <li><a href="http://www.hungry.com/~pere/blog/archive/2009/02/">February (8)</a></li>
1514
1515 <li><a href="http://www.hungry.com/~pere/blog/archive/2009/03/">March (12)</a></li>
1516
1517 <li><a href="http://www.hungry.com/~pere/blog/archive/2009/04/">April (10)</a></li>
1518
1519 <li><a href="http://www.hungry.com/~pere/blog/archive/2009/05/">May (9)</a></li>
1520
1521 <li><a href="http://www.hungry.com/~pere/blog/archive/2009/06/">June (3)</a></li>
1522
1523 <li><a href="http://www.hungry.com/~pere/blog/archive/2009/07/">July (4)</a></li>
1524
1525 <li><a href="http://www.hungry.com/~pere/blog/archive/2009/08/">August (3)</a></li>
1526
1527 <li><a href="http://www.hungry.com/~pere/blog/archive/2009/09/">September (1)</a></li>
1528
1529 <li><a href="http://www.hungry.com/~pere/blog/archive/2009/10/">October (2)</a></li>
1530
1531 <li><a href="http://www.hungry.com/~pere/blog/archive/2009/11/">November (3)</a></li>
1532
1533 <li><a href="http://www.hungry.com/~pere/blog/archive/2009/12/">December (3)</a></li>
1534
1535 </ul></li>
1536
1537 <li>2008
1538 <ul>
1539
1540 <li><a href="http://www.hungry.com/~pere/blog/archive/2008/11/">November (5)</a></li>
1541
1542 <li><a href="http://www.hungry.com/~pere/blog/archive/2008/12/">December (7)</a></li>
1543
1544 </ul></li>
1545
1546 </ul>
1547
1548
1549
1550 <h2>Tags</h2>
1551 <ul>
1552
1553  <li><a href="http://www.hungry.com/~pere/blog/tags/3d-printer">3d-printer (19)</a></li>
1554
1555  <li><a href="http://www.hungry.com/~pere/blog/tags/amiga">amiga (1)</a></li>
1556
1557  <li><a href="http://www.hungry.com/~pere/blog/tags/aros">aros (1)</a></li>
1558
1559  <li><a href="http://www.hungry.com/~pere/blog/tags/bankid">bankid (4)</a></li>
1560
1561  <li><a href="http://www.hungry.com/~pere/blog/tags/betalkontant">betalkontant (9)</a></li>
1562
1563  <li><a href="http://www.hungry.com/~pere/blog/tags/bitcoin">bitcoin (13)</a></li>
1564
1565  <li><a href="http://www.hungry.com/~pere/blog/tags/bootsystem">bootsystem (17)</a></li>
1566
1567  <li><a href="http://www.hungry.com/~pere/blog/tags/bsa">bsa (2)</a></li>
1568
1569  <li><a href="http://www.hungry.com/~pere/blog/tags/chrpath">chrpath (3)</a></li>
1570
1571  <li><a href="http://www.hungry.com/~pere/blog/tags/debian">debian (204)</a></li>
1572
1573  <li><a href="http://www.hungry.com/~pere/blog/tags/debian edu">debian edu (159)</a></li>
1574
1575  <li><a href="http://www.hungry.com/~pere/blog/tags/debian-handbook">debian-handbook (9)</a></li>
1576
1577  <li><a href="http://www.hungry.com/~pere/blog/tags/digistan">digistan (11)</a></li>
1578
1579  <li><a href="http://www.hungry.com/~pere/blog/tags/dld">dld (18)</a></li>
1580
1581  <li><a href="http://www.hungry.com/~pere/blog/tags/docbook">docbook (33)</a></li>
1582
1583  <li><a href="http://www.hungry.com/~pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
1584
1585  <li><a href="http://www.hungry.com/~pere/blog/tags/english">english (466)</a></li>
1586
1587  <li><a href="http://www.hungry.com/~pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
1588
1589  <li><a href="http://www.hungry.com/~pere/blog/tags/fildeling">fildeling (14)</a></li>
1590
1591  <li><a href="http://www.hungry.com/~pere/blog/tags/freeculture">freeculture (34)</a></li>
1592
1593  <li><a href="http://www.hungry.com/~pere/blog/tags/freedombox">freedombox (9)</a></li>
1594
1595  <li><a href="http://www.hungry.com/~pere/blog/tags/frikanalen">frikanalen (20)</a></li>
1596
1597  <li><a href="http://www.hungry.com/~pere/blog/tags/h264">h264 (20)</a></li>
1598
1599  <li><a href="http://www.hungry.com/~pere/blog/tags/intervju">intervju (43)</a></li>
1600
1601  <li><a href="http://www.hungry.com/~pere/blog/tags/isenkram">isenkram (18)</a></li>
1602
1603  <li><a href="http://www.hungry.com/~pere/blog/tags/kart">kart (23)</a></li>
1604
1605  <li><a href="http://www.hungry.com/~pere/blog/tags/kodi">kodi (6)</a></li>
1606
1607  <li><a href="http://www.hungry.com/~pere/blog/tags/ldap">ldap (9)</a></li>
1608
1609  <li><a href="http://www.hungry.com/~pere/blog/tags/lego">lego (5)</a></li>
1610
1611  <li><a href="http://www.hungry.com/~pere/blog/tags/lenker">lenker (8)</a></li>
1612
1613  <li><a href="http://www.hungry.com/~pere/blog/tags/linuxcnc">linuxcnc (8)</a></li>
1614
1615  <li><a href="http://www.hungry.com/~pere/blog/tags/lsdvd">lsdvd (2)</a></li>
1616
1617  <li><a href="http://www.hungry.com/~pere/blog/tags/ltsp">ltsp (1)</a></li>
1618
1619  <li><a href="http://www.hungry.com/~pere/blog/tags/madewithcc">madewithcc (3)</a></li>
1620
1621  <li><a href="http://www.hungry.com/~pere/blog/tags/mesh network">mesh network (8)</a></li>
1622
1623  <li><a href="http://www.hungry.com/~pere/blog/tags/multimedia">multimedia (46)</a></li>
1624
1625  <li><a href="http://www.hungry.com/~pere/blog/tags/nice free software">nice free software (15)</a></li>
1626
1627  <li><a href="http://www.hungry.com/~pere/blog/tags/noark5">noark5 (25)</a></li>
1628
1629  <li><a href="http://www.hungry.com/~pere/blog/tags/norsk">norsk (325)</a></li>
1630
1631  <li><a href="http://www.hungry.com/~pere/blog/tags/nuug">nuug (199)</a></li>
1632
1633  <li><a href="http://www.hungry.com/~pere/blog/tags/offentlig innsyn">offentlig innsyn (41)</a></li>
1634
1635  <li><a href="http://www.hungry.com/~pere/blog/tags/open311">open311 (2)</a></li>
1636
1637  <li><a href="http://www.hungry.com/~pere/blog/tags/opensnitch">opensnitch (4)</a></li>
1638
1639  <li><a href="http://www.hungry.com/~pere/blog/tags/opphavsrett">opphavsrett (76)</a></li>
1640
1641  <li><a href="http://www.hungry.com/~pere/blog/tags/personvern">personvern (114)</a></li>
1642
1643  <li><a href="http://www.hungry.com/~pere/blog/tags/raid">raid (4)</a></li>
1644
1645  <li><a href="http://www.hungry.com/~pere/blog/tags/reactos">reactos (1)</a></li>
1646
1647  <li><a href="http://www.hungry.com/~pere/blog/tags/reprap">reprap (11)</a></li>
1648
1649  <li><a href="http://www.hungry.com/~pere/blog/tags/rfid">rfid (3)</a></li>
1650
1651  <li><a href="http://www.hungry.com/~pere/blog/tags/robot">robot (17)</a></li>
1652
1653  <li><a href="http://www.hungry.com/~pere/blog/tags/rss">rss (1)</a></li>
1654
1655  <li><a href="http://www.hungry.com/~pere/blog/tags/ruter">ruter (7)</a></li>
1656
1657  <li><a href="http://www.hungry.com/~pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
1658
1659  <li><a href="http://www.hungry.com/~pere/blog/tags/sikkerhet">sikkerhet (60)</a></li>
1660
1661  <li><a href="http://www.hungry.com/~pere/blog/tags/sitesummary">sitesummary (4)</a></li>
1662
1663  <li><a href="http://www.hungry.com/~pere/blog/tags/skepsis">skepsis (5)</a></li>
1664
1665  <li><a href="http://www.hungry.com/~pere/blog/tags/standard">standard (76)</a></li>
1666
1667  <li><a href="http://www.hungry.com/~pere/blog/tags/stavekontroll">stavekontroll (7)</a></li>
1668
1669  <li><a href="http://www.hungry.com/~pere/blog/tags/stortinget">stortinget (14)</a></li>
1670
1671  <li><a href="http://www.hungry.com/~pere/blog/tags/surveillance">surveillance (65)</a></li>
1672
1673  <li><a href="http://www.hungry.com/~pere/blog/tags/sysadmin">sysadmin (5)</a></li>
1674
1675  <li><a href="http://www.hungry.com/~pere/blog/tags/usenix">usenix (2)</a></li>
1676
1677  <li><a href="http://www.hungry.com/~pere/blog/tags/valg">valg (9)</a></li>
1678
1679  <li><a href="http://www.hungry.com/~pere/blog/tags/verkidetfri">verkidetfri (22)</a></li>
1680
1681  <li><a href="http://www.hungry.com/~pere/blog/tags/video">video (80)</a></li>
1682
1683  <li><a href="http://www.hungry.com/~pere/blog/tags/vitenskap">vitenskap (4)</a></li>
1684
1685  <li><a href="http://www.hungry.com/~pere/blog/tags/web">web (42)</a></li>
1686
1687 </ul>
1688
1689
1690     </div>
1691     <p style="text-align: right">
1692  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
1693 </p>
1694
1695   </body>
1696 </html>