In need of TxID and WTxID of BIP143 transactions for UnitTesting

amaclin1

sr. member

Activity: 770

Merit: 305

Quote from: Coding Enthusiast on August 07, 2018, 10:49:45 AM

For example the TxID of the first transaction in [1] above is:

Code:

e8151a2af31c368a35053ddd4bdb285a8595c769a3ad83e0fa02314a602d4609

I ended up using Electrum to get the transaction IDs. But I still don't have WTxIDs and I don't know how to get them. For instance is there any command in Bitcoin Core that I can use to get it?

Coding Enthusiast

legendary

Activity: 1042

Merit: 2805

Bitcoin and C♯ Enthusiast

Quote from: achow101 on August 07, 2018, 01:29:31 AM

Yes. The TXID is the nversion, txin, txout, and nlocktime fields. The wtxid is everything. Just concatenate everything together from the part where each field is broken down. The lengths are still there so you can just stick them all together.

I think you misunderstood my question!
I already know how they is calculated. I am making a library and I just want data (the two hashes) to feed my Unit Tests.
For example the TxID of the first transaction in [1] above is:

Code:

e8151a2af31c368a35053ddd4bdb285a8595c769a3ad83e0fa02314a602d4609

I ended up using Electrum to get the transaction IDs. But I still don't have WTxIDs and I don't know how to get them. For instance is there any command in Bitcoin Core that I can use to get it?

achow101

staff

Activity: 3458

Merit: 6793

Just writing some code

Yes. The TXID is the nversion, txin, txout, and nlocktime fields. The wtxid is everything. Just concatenate everything together from the part where each field is broken down. The lengths are still there so you can just stick them all together.

Coding Enthusiast

legendary

Activity: 1042

Merit: 2805

Bitcoin and C♯ Enthusiast

There are a bunch of transactions in BIP143 [1] which are good for testing since it is broken down into parts and has the signing process included. But it lacks transaction IDs. Now I have only 1 function that doesn't have any unit tests. Also looked at Bitcoin Core's test data [2] but it doesn't seem to have all the transaction IDs.

Is there a way to get both Transaction IDs and Witness Transaction IDs for the serialized signed transaction listed in [1]?

[1] https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki
[2] https://github.com/bitcoin/bitcoin/tree/master/src/test/data

Topic: In need of TxID and WTxID of BIP143 transactions for UnitTesting (Read 217 times)