Lisa Guyer (born October 25, 1963) is an American singer, guitarist, and songwriter. Early life She was born into a musical family that put on shows in their community, and Guyer learned to sing an
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c5e1f6022248f3730a4cfd3ed36d98285c3e1bac2cd6811e3512bfd1fcd8ea. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fe3137d-3301-4faa-81af-13a6063b20ca.json and https://artists.proofprofile.net/proofs/artist/1fe3137d-3301-4faa-81af-13a6063b20ca.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.