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 0x2f6be8a268358e8bbc0bf4d913ff8df46e859e2a3ae9ef3dec7a7f1c7a789ee8. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a1bf05b-30b2-4ac1-a440-6c86e7973a22.json and https://artists.proofprofile.net/proofs/artist/1a1bf05b-30b2-4ac1-a440-6c86e7973a22.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Songs Of The Beatles: Melodies To Lull The Baby
Songs to Pamper and Lull/Classic Songs for Babies