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 0xf5e9ebfeccb990828220045111e54172d9ae0fd594876f63311fcb313ff7a977. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7a15634-5615-4a1e-9a13-0a770aa66d1b.json and https://artists.proofprofile.net/proofs/artist/f7a15634-5615-4a1e-9a13-0a770aa66d1b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Otter Song - Live at The New Doghouse Folk Club, Walsall 2nd March 1973
The Golden Era of Birmingham: Terrace Anthems
When the Blues Get the Cup (with Guest Narrator Malcolm Stent)
Fairport Convention: The Fairport Companion - Loose Chippings from the Fairport Convention Family Tree