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 0xfc52e4666460ae6e7c4a2e100eb336aafb17f3be9d5968d97159cc4540150a70. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7cdb644-f4ce-42a9-99d0-df11e3cdda91.json and https://artists.proofprofile.net/proofs/artist/f7cdb644-f4ce-42a9-99d0-df11e3cdda91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
He Ain't Heavy, He's My Brother (2020 Version)
He Ain't Heavy, He's My Brother - 2020 Version