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 0x9db59f6cec819b97f45d9f859d655d8188fc96d3159d9bd25da8a0606f540635. 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/161831bc-1fce-4c23-8bd1-3c118bd88c16.json and https://artists.proofprofile.net/proofs/artist/161831bc-1fce-4c23-8bd1-3c118bd88c16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Delightful Backdrop for Dogs at Home Alone
Music for Serene Puppies - Excellent Trumpet Jazz
Backdrop for Serene Puppies - Trumpet Jazz
Classic Background for Separation Anxiety
Tenor Sax and Trumpet Solos (Music for Serene Puppies)
Vibraphone Solos - Music for Relaxing Your Dog
Inspired Background for Separation Anxiety
Music for Dog Naptime (Glockenspiel Music)
Jazz Trio - Background for Calming Your Puppy
Music for Calming Your Puppy - Trumpet and Alto Sax