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 0xd2e410b4cb2ccd5e123fdde11f49176110050b715fb1becf74e58c48b3aa44a5. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46a0aabd-a825-4d1b-997e-722b04d33500.json and https://artists.proofprofile.net/proofs/artist/46a0aabd-a825-4d1b-997e-722b04d33500.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Earth Mother Lullabies from Around the World Vol. 1
Earth Mother Lullabies from Around the World Vol. 2
Earth Mother Lullabies from Around the World Vol. 3
Magical Melodies from Broadway and Motion Pictures