The only other widely used transaction serialization format of that
The only ((("partially signed bitcoin transaction (PSBT) format")))((("PSBT (partially signed bitcoin transaction) format")))other widely used transaction serialization format of that
we're aware of is the partially signed bitcoin transaction (PSBT) format
documented in BIPs 174 and 370 (with extensions documented in other
BIPs). PSBT allows an untrusted program to produce a transaction