1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2337364dee9e301b0115ce7a61181e4f167e59c0c377e021e7fa55515e1c35. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ccdfa83-0556-4648-b8a3-070dd6f993d4.json and https://artists.proofprofile.net/proofs/artist/9ccdfa83-0556-4648-b8a3-070dd6f993d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Simple Gifts/When Paddy O'malley Danced with the Swedish Maiden
In the Bleak Midwinter (Distant Pipes Reprise)
J'ai vu petite maman embrasser le Pere Noel