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Andreas M. Antonopoulos 2017-07-18 12:20:20 +08:00
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appdx-pycoin.asciidoc
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@ -3,7 +3,7 @@
== pycoin, ku, and tx
((("pycoin library")))The Python library http://github.com/richardkiss/pycoin[+pycoin+], originally written and maintained by Richard Kiss, is a Python-based library that supports manipulation of bitcoin keys and transactions, even supporting the scripting language enough to properly deal with nonstandard transactions.
((("pycoin library")))The Python library http://github.com/richardkiss/pycoin[+pycoin+], originally written and maintained by Richard Kiss, is a Python-based library that supports manipulation of bitcoin keys and transactions, even supporting the scripting language enough to properly deal with nonstandard transactions.
The pycoin library supports both Python 2 (2.7.x) and Python 3 (after 3.3) and comes with some handy command-line utilities, +ku+ and +tx+.
@ -86,7 +86,7 @@ hash160 : 5d353a2ecdb262477172852d57a3f11de0c19286
Bitcoin address : 19Vqc8uLTfUonmxUEZac7fz1M5c5ZZbAii
uncompressed : 1MwkRkogzBRMehBntgcq2aJhXCXStJTXHT
----
Get info as JSON:
@ -97,25 +97,25 @@ $ ku P:foo -P -j
[source,json]
----
{
"y_parity": "even",
"public_pair_y_hex": "826d8b4d3010aea16ff4c1c1d3ae68541d9a04df54a2c48cc241c2983544de52",
"private_key": "no",
"parent_fingerprint": "00000000",
"tree_depth": "0",
"network": "Bitcoin",
"btc_address_uncompressed": "1MwkRkogzBRMehBntgcq2aJhXCXStJTXHT",
"key_pair_as_sec_uncompressed": "04b4e599dfa44555a4ed38bcfff0071d5af676a86abf123c5b4b4e8e67a0b0b13f826d8b4d3010aea16ff4c1c1d3ae68541d9a04df54a2c48cc241c2983544de52",
"public_pair_x_hex": "b4e599dfa44555a4ed38bcfff0071d5af676a86abf123c5b4b4e8e67a0b0b13f",
"wallet_key": "xpub661MyMwAqRbcFVF9ULcqLdsEa5WnCCugQAcgNd9iEMQ31tgH6u4DLQWoQayvtSVYFvXz2vPPpbXE1qpjoUFidhjFj82pVShWu9curWmb2zy",
"chain_code": "5eeb1023fd6dd1ae52a005ce0e73420821e1d90e08be980a85e9111fd7646bbc",
"child_index": "0",
"hash160_uncompressed": "e5bd3a7e6cb62b4c820e51200fb1c148d79e67da",
"btc_address": "19Vqc8uLTfUonmxUEZac7fz1M5c5ZZbAii",
"fingerprint": "5d353a2e",
"hash160": "5d353a2ecdb262477172852d57a3f11de0c19286",
"input": "P:foo",
"public_pair_x": "81821982719381104061777349269130419024493616650993589394553404347774393168191",
"public_pair_y": "58994218069605424278320703250689780154785099509277691723126325051200459038290",
"y_parity": "even",
"public_pair_y_hex": "826d8b4d3010aea16ff4c1c1d3ae68541d9a04df54a2c48cc241c2983544de52",
"private_key": "no",
"parent_fingerprint": "00000000",
"tree_depth": "0",
"network": "Bitcoin",
"btc_address_uncompressed": "1MwkRkogzBRMehBntgcq2aJhXCXStJTXHT",
"key_pair_as_sec_uncompressed": "04b4e599dfa44555a4ed38bcfff0071d5af676a86abf123c5b4b4e8e67a0b0b13f826d8b4d3010aea16ff4c1c1d3ae68541d9a04df54a2c48cc241c2983544de52",
"public_pair_x_hex": "b4e599dfa44555a4ed38bcfff0071d5af676a86abf123c5b4b4e8e67a0b0b13f",
"wallet_key": "xpub661MyMwAqRbcFVF9ULcqLdsEa5WnCCugQAcgNd9iEMQ31tgH6u4DLQWoQayvtSVYFvXz2vPPpbXE1qpjoUFidhjFj82pVShWu9curWmb2zy",
"chain_code": "5eeb1023fd6dd1ae52a005ce0e73420821e1d90e08be980a85e9111fd7646bbc",
"child_index": "0",
"hash160_uncompressed": "e5bd3a7e6cb62b4c820e51200fb1c148d79e67da",
"btc_address": "19Vqc8uLTfUonmxUEZac7fz1M5c5ZZbAii",
"fingerprint": "5d353a2e",
"hash160": "5d353a2ecdb262477172852d57a3f11de0c19286",
"input": "P:foo",
"public_pair_x": "81821982719381104061777349269130419024493616650993589394553404347774393168191",
"public_pair_y": "58994218069605424278320703250689780154785099509277691723126325051200459038290",
"key_pair_as_sec": "02b4e599dfa44555a4ed38bcfff0071d5af676a86abf123c5b4b4e8e67a0b0b13f"
}
----
@ -329,7 +329,8 @@ Dogecoin address : DFpN6QqFfUm3gKNaxN6tNcab1FArL9cZLE
==== Transaction Utility (TX)
((("transaction utility (TX)", id="TX18")))The command-line utility +tx+ will display transactions in human-readable form, fetch base transactions from pycoin's transaction cache or from web services (pass:[<a href="https://blockchain.info/" class="orm:hideurl"><em>blockchain.info</em></a> and <a href="https://www.biteasy.com/" class="orm:hideurl"><em>biteasy.com</em></a>] are currently supported), merge transactions, add or delete inputs or outputs, and sign transactions.
((("transaction utility (TX)", id="TX18")))
The command-line utility +tx+ will display transactions in human-readable form, fetch base transactions from pycoin's transaction cache or from web services (blockchain.info, blockcypher.com, blockr.io and chain.so are currently supported), merge transactions, add or delete inputs or outputs, and sign transactions.
Following are some examples.
@ -340,7 +341,7 @@ View the famous "pizza" transaction:
----
$ tx 49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a
warning: consider setting environment variable PYCOIN_CACHE_DIR=~/.pycoin_cache to cache transactions fetched via web services
warning: no service providers found for get_tx; consider setting environment variable PYCOIN_SERVICE_PROVIDERS=BLOCKR_IO:BLOCKCHAIN_INFO:BITEASY:BLOCKEXPLORER
warning: no service providers found for get_tx; consider setting environment variable PYCOIN_BTC_PROVIDERS
usage: tx [-h] [-t TRANSACTION_VERSION] [-l LOCK_TIME] [-n NETWORK] [-a]
[-i address] [-f path-to-private-keys] [-g GPG_ARGUMENT]
[--remove-tx-in tx_in_index_to_delete]
@ -357,8 +358,8 @@ Oops! We don't have web services set up. Let's do that now:
[source,bash]
----
$ PYCOIN_CACHE_DIR=~/.pycoin_cache
$ PYCOIN_SERVICE_PROVIDERS=BLOCKR_IO:BLOCKCHAIN_INFO:BITEASY:BLOCKEXPLORER
$ export PYCOIN_CACHE_DIR PYCOIN_SERVICE_PROVIDERS
$ PYCOIN_BTC_PROVIDERS="block.io blockchain.info blockexplorer.com"
$ export PYCOIN_CACHE_DIR PYCOIN_BTC_PROVIDERS
----
@ -368,7 +369,7 @@ Let's try again:
----
$ tx 49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a
Version: 1 tx hash 49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a 159 bytes
Version: 1 tx hash 49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a 159 bytes
TxIn count: 1; TxOut count: 1
Lock time: 0 (valid anytime)
Input:
@ -388,7 +389,7 @@ The final line appears because to validate the transactions' signatures, you tec
$ tx -a 49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a
warning: transaction fees recommendations casually calculated and estimates may be incorrect
warning: transaction fee lower than (casually calculated) expected value of 0.1 mBTC, transaction might not propogate
Version: 1 tx hash 49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a 159 bytes
Version: 1 tx hash 49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a 159 bytes
TxIn count: 1; TxOut count: 1
Lock time: 0 (valid anytime)
Input: