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 0x7a25d217156dcd457f365b60b27d6a77579a36ee5d675f8d557b1c875c44a13f. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27bb527b-4930-4983-a143-442ca4fc4738.json and https://artists.proofprofile.net/proofs/artist/27bb527b-4930-4983-a143-442ca4fc4738.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Live at Hultsfred Festival, 18th June 2004
Live at LPR New York, 17th February 2010
Live at Alexandra Palace London, 8th and 9th May 2019