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 0xb350c4d28252153e264650fc2b69fd2f97b27b964a1d532df91b43d1827e83a5. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce339376-805f-4fb2-9100-55dffdf66c26.json and https://artists.proofprofile.net/proofs/artist/ce339376-805f-4fb2-9100-55dffdf66c26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bang The Drum (As Made Famous By Bryan Adams And Nelly Furtado)
Bang the Drum - Bryan Adams & Nelly Furtado Tribute