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0
votes
1answer
42 views

Redeeming OP_SHA256 hash OP_EQUAL (Testnet) Tx

I created the following non-standard Tx on the Testnet3 network: 6b52c981e6814072db77cb755b2633cd126b4ca21501d18ab994531e17a4a813 { hash: ...
4
votes
2answers
76 views

Why is my raw transaction non-canonical, getting error -25, and being rejected?

I'm trying to port TX generation logic to a different (and unpopular) language. I've been beating my head against this way too long and should have walked away but, well, you know, closure, and ...
1
vote
1answer
73 views

Difference between createmultisig and addmultisigaddress?

What is the functional difference between createmultisig and addmultisigaddress in bitcoincore (v 0.10)? To be clear, I understand how both function. ie. multisigCmd n ["address1 public key as hex", ...
1
vote
1answer
534 views

How can I view the Blockchain locally on my machine?

I'd like to view the blockchain on my Windows 7 machine. Right now I'm looking under roaming/Bitcoin/blocks, and trying to open blk00000.dat . I can't read any of it though, it seems the text is ...
0
votes
1answer
593 views

calculate transaction ID TXID from JSON or raw transaction

consider an offline transaction that has not been posted yet, created through a method such as here: http://brainwallet.org/#tx a) how could I calculate the transaction ID from the raw transaction? ...
3
votes
1answer
175 views

Can the same target address appear more than once on transaction output?

Normally, a transaction output will contain a list of address + amount. Each element in this list has an associate output number, "vout". For example: Transaction outputs: vout=0: addr=m111111, ...
29
votes
3answers
6k views

How to redeem a basic Tx?

Given a raw, standard Tx: 01000000 01 26c07ece0bce7cda0ccd14d99e205f118cde27e83dd75da7b141fe487b5528fb00000000 8b ...
4
votes
2answers
151 views

Why is the Block Header txn_count field always zero?

According to the Protocol Specification, the txn_count field of a Block Header is always set to 0, why is that? What are the intended future uses of this field?