Maand: maart 2015

I am interested in using the ripple network in conjunction with bitcoin transactions, but am curious as to interplay between the ripple ledger verification and the bitcoin blockchain verification.

I understand that the ripple network operates as essentially a series of IOUs and allows the ledger to be verified in an order of magnitude of seconds, however, a Bitcoin block takes on the order of magnitude of 10 minutes.

Does this mean that ripple transactions that involve bitcoin are entirely off the chain transactions or am I somehow missing something? I am just trying to get my head wrapped around the seemingly hand-wavy aspect that something that takes 10 minutes to verify can be used in a transaction that takes only 5 seconds to verify.

Is there any way to check for this data in blockchain?

I want to search this value: 554e6963444320 and want to return this transaction https://blockchain.info/tx/7e92e90f221ad28daf42b5b8bda4c8e244e37af48527fcd12b2518db5d3315bd

I’m running a testnet node. I can use bitcoin-cli just fine:

>bitcoin-cli.exe getinfo
{
    "version" : 100000,
    "protocolversion" : 70002,
    "walletversion" : 60000,
[... snipped]

But when I run this python code:

from bitcoinrpc.authproxy import AuthServiceProxy, JSONRPCException
import logging

rpc_user = "rpcuser"
rpc_password = "xxxxx"

logging.basicConfig()
logging.getLogger("BitcoinRPC").setLevel(logging.DEBUG)

rpc_connection = AuthServiceProxy("http://%s:%s@192.168.1.39:8332/" % (rpc_user, rpc_password))
print(rpc_connection.getinfo())

I get this error:

DEBUG:BitcoinRPC:-1-> getinfo []

Traceback (most recent call last):
  File "<path>\rawtransactiondemo\raw.py", line 11, in <module>
    print(rpc_connection.getinfo())
[... snipped]
  File "C:\Python27\lib\json\decoder.py", line 384, in raw_decode
    raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded

This is my bitcoin.conf:

testnet=1
rpcuser=bitcoinrpc
rpcpassword=xxxxx
daemon=1
rpcport=8332
rpcallowip=192.168.1.39
bind=192.168.1.39

I’m using the python-bitcoinrpc library.

Let’s say for example I put my public bitcoin address on a website for donations and multiple people for around the world deposit bitcoins simultaneously to that same wallet:

1. Will all deposit transactions be valid on the bitcoin network or might some transactions “overwrite” the other?
2. While receiving bitcoins from someone (not yet a verified transaction on the network), can I withdraw or pay bitcoins using the same wallet given the amount only include previous bitcoins and does include the new deposit?

Is there anyway to create my own Bitcoin Network?

I’d love to put my first block into self-own Bitcoin Network and make it grow : )

Any ideas?