Peter Jeffrey Sutherland (May 13, 1951 – November 30, 2022) was an American folk musician. He was considered a leader of the Americana and traditional music scene in Vermont. He performed with the Cla
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a81f47a658adfc0205dc8ccb1f91a2d1c5dc92ad9576738c9c21029b6ca4c6. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41f2e10d-156d-45d6-bbcb-3824148bf72a.json and https://artists.proofprofile.net/proofs/artist/41f2e10d-156d-45d6-bbcb-3824148bf72a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).