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 0x35f3449219c6e4cc1c953373c4f20fba3837edb3c58197707765c73a724fab3c. 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/9ea49c3a-4d4f-4a64-98c1-8f36f6e95822.json and https://artists.proofprofile.net/proofs/artist/9ea49c3a-4d4f-4a64-98c1-8f36f6e95822.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Faith is the Bird (The Fox Den Sessions)
Indie/Indie-Folk Compilation - Winter 2022