Draft BIP for OP_TXHASH and OP_CHECKTXHASHVERIFY

stevenroose · December 11, 2023, 9:06am

The BIP is now no longer in draft state and there is a Bitcoin Core implementation as well:

github.com/bitcoin/bitcoin

Add OP_TXHASH and OP_CHECKTXHASHVERIFY opcodes

bitcoin:master ← stevenroose:txhash

opened 09:00AM - 11 Dec 23 UTC

stevenroose

+2942 -19

Implementation of OP_TXHASH and OP_CHECKTXHASHVERIFY, as per the [draft BIP](htt…ps://github.com/bitcoin/bips/pull/1500). This MR includes a test using the test vectors generated from the reference implementation in the BIP. The implementation utilizes a caching strategy that hopefully alleviates concerns around resource usage like quadratic hashing. (I'm not very familiar with checks and lints on here, so I'll try to address problems as they come. I have personally been able to compile and run the tests, but that usually is only the tip of the iceberg.)