Welcome to the Protocoin documentation.Protocoin is pure Python implementation of the Bitcoin protocol parsing and networking.Protocoin doesn’t implement the protocol rules, only the serialization/deserialization procedures and also basic clients to interact with the Bitcoin P2P network.Note Protocoin is intended to be used to build clients that will collect statistics of the network, but you can also use it to implement a full Bitcoin client.Contents Why another Python client ?Changelog Release v.0.2 Release v.0.1 Getting Started Installation Architecture Protocoin Fields Protocoin Serializers Network Clients A basic network client A more complete client implementation Bitcoin Keys – Creating, exporting/importing and conversions Creating Private Keys and Public Keys Importing and Exporting Keys Examples Receiving blocks in real-time Inspecting transactions output Creating your own brain wallet algorithm API Documentation – Fields – Serializers – Clients – Utility – Keys and Address Management Contribute or Report a bug License

Package Index > python-bitcoinlib > 0.7.0 python-bitcoinlib 0.7.0 # python-bitcoinlibThis Python2/3 library provides an easy interface to the bitcoin datastructures and protocol.The approach is low-level and "ground up", with afocus on providing tools to manipulate the internals of how Bitcoin works."TheSwiss Army Knife of the Bitcoin protocol."- Wladimir J. van der Laan## Requirements sudo apt-get install libssl-devThe RPC interface, bitcoin.rpc, is designed to work with Bitcoin Core v0.13.0Older versions may work but there do exist some incompatibilities.## StructureEverything consensus critical is found in the modules under bitcoin.core.Thisrule is followed pretty strictly, for instance chain parameters are split intoconsensus critical and non-consensus-critical.bitcoin.core - Basic core definitions, datastructures, and (context-independent) validation bitcoin.core.key - ECC pubkeys bitcoin.core.script - Scripts and opcodes bitcoin.core.scripteval - Script evaluation/verification bitcoin.core.serialize - SerializationIn the future the bitcoin.core may use the Satoshi sourcecode directly as alibrary.

Non-consensus critical modules include the following: bitcoin - Chain selection bitcoin.base58 - Base58 encoding bitcoin.bloom - Bloom filters (incomplete) bitcoin.net - Network communication (in flux) bitcoin.messages - Network messages (in flux) bitcoin.rpc - Bitcoin Core RPC interface support bitcoin.wallet - Wallet-related code, currently Bitcoin address and private key supportEffort has been made to follow the Satoshi source relatively closely, forinstance Python code and classes that duplicate the functionality ofcorresponding Satoshi C++ code uses the same naming conventions: CTransaction,CBlockHeader, nValue etc. Otherwise Python naming conventions are followed.## Mutable vs.bitcoin wallet not receiving coinsImmutable objectsLike the Bitcoin Core codebase CTransaction is immutable andCMutableTransaction is mutable; unlike the Bitcoin Core codebase thisdistinction also applies to COutPoint, CTxIn, CTxOut, and CBlock.## Endianness GotchasRather confusingly Bitcoin Core shows transaction and block hashes aslittle-endian hex rather than the big-endian the rest of the world uses forSHA256.bitcoin future speculation

python-bitcoinlib provides the convenience functions x() and lx() inbitcoin.core to convert from big-endian and little-endian hex to raw bytes toaccomodate this.In addition see b2x() and b2lx() for conversion from bytes tobig/little-endian hex.## Module import styleWhile not always good style, it's often convenient for quick scripts if`import *` can be used.To support that all the modules have `__all__` definedappropriately.# Example CodeSee `examples/` directory.ethereum gratisFor instance this example creates a transactionspending a pay-to-script-hash transaction output: $ PYTHONPATH=.bitcoin ap styleexamples/spend-pay-to-script-hash-txout.py ## Selecting the chain to useDo the following: import bitcoin bitcoin.SelectParams(NAME)Where NAME is one of 'testnet', 'mainnet', or 'regtest'.bitcoin casino no deposit bonus 2017 usa

The chain currentlyselected is a global variable that changes behavior everywhere, just like inthe Satoshi codebase.## Unit testsUnder bitcoin/tests using test data from Bitcoin Core./) is available on yoursystem, you can run unit tests for multiple Python versions: ./runtests.shCurrently, the following implementations are tried (any not installed areskipped): * CPython 2.7 * CPython 3.3 * CPython 3.4 * CPython 3.5 * PyPy * PyPy3HTML coverage reports can then be found in the htmlcov/ subdirectory.## DocumentationSphinx documentation is in the "doc" subdirectory.bitcoin luxury marketplaceRun "make help" from thereto see how to build.bitcoin euro tickerYou will need the Python "sphinx" package installed.Currently this is just API documentation generated from the code anddocstrings.bitcoin ankara

Higher level written docs would be useful, perhaps starting withmuch of this README.Pages are written in reStructuredText and linked fromindex.rst.File Type Py Version Uploaded on Size python-bitcoinlib-0.7.0.tar.gz (md5, pgp) Source 2016-10-01 64KB python_bitcoinlib-0.7.0-py2.py3-none-any.whl (md5, pgp) Python Wheel any 2016-10-01 79KB Package Index Owner: Package Index Maintainer: DOAP record: python-bitcoinlib-0.7.0.xmlhow to use bitcoin to launder money_ Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top up vote 4 down vote favorite 1 I would like to create a python script that listens to the bitcoin network and monitors some addresses, stored in a mysql db.As soon as a transaction is broadcast with one of these addresses as an output, the script should run a function.

I do not need to store the whole blockchain, nor do I want to.The private keys are also not on the same machine, for security.There is no wallet on this machine, just a list of addresses in a DB.For the moment I have implemented this with the webhooks from blockchain.info and also tested with blocktrail.It works but it does not work fast enough te achieve my goals, these solutions are just too slow to be practical.I need to be notified instantly.I've looked at several options but none seem to fit as a good starting point.(BitcoinJ seems the closest but it is in Java) I cannot believe there is no such thing in existence, I just couldn't find one.So, can you steer me in the right direction?transactions network python up vote 1 down vote If you just listen to transactions on the network without having a validating node of your own you will have absolutely no way of knowing if they are legitimate or not.You must have a fully validating node locally, otherwise transactions can be cost-lessly fabricated to spend any amount of money anywhere.

There is no recourse if you get this wrong, this is primarily why nobody has implemented any sort of validation in Python, there's various bits of the p2p protocol on Github, but it does exactly zero consensus validation on the data it receives.The current master of Bitcoin Core (and the up coming 0.12 release at the end of the year) both contain a ZMQ interface which gives you a real time supply of validated transactions.A full node (pruned) can be run in as little as 2GB of space, and isn't very resource intensive for somebody running a business.There's example code for that available on github as zmq_sub.py which should get you started, just be aware that ZMQ has no guarantee of deliverability, some messages may be silently dropped if there are connectivity issues.It's important to keep in mind that an unconfirmed transaction has no guarantee of being confirmed, and may be invalidated at any point in time.Accepting zero confirmations is extremely risky, though updating a user interface with a list of unconfirmed transactions is perfectly reasonable behaviour.

up vote 1 down vote In the end I went with The websocket API from Blockchain in combination with the python websocket client from Hiroki Ohtani.This mechanism is really instantaneous and seems stable and usable.However, I still have concerns around having to put my eggs in one basket.So, I double check and also use Blocktrail's webhooks api.This system still does not give me 100% foolproof security but I can live with this setup, until a better system comes along, or I can make something better.Thank you all for helping out, and I hope this answer may serve as an idea/basis for your own Bitcoin projects!up vote 0 down vote If you have a raw copy of the transaction, you could re-publish it over and over again until it gets confirmed.Even with very low transaction fees it should get confirmed in the end (but it might take long) Your Answer Sign up or log in Sign up using Google Sign up using Email and Password Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service.