feat(wasm-utxo): add PayGo attestation support #73
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Adds functionality to attach, parse and verify PayGo attestations in PSBT outputs. PayGo attestations are cryptographic proofs that an output address was authorized by a signing authority. - Add PayGoAttestation data structure and message construction - Implement PSBT integration for storing attestations - Add signature verification using Bitcoin message format - Update BitGoPsbt API to support PayGo operations - Include paygo field in ParsedOutput Issue: BTC-2660 Co-authored-by: llm-git <llm-git@ttll.de>
OttoAllmendinger
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davidkaplanbitgo
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Dec 9, 2025
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Adds functionality to attach, parse and verify PayGo attestations in PSBT
outputs. PayGo attestations are cryptographic proofs that an output
address was authorized by a signing authority.
BTC-2660