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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56daa70220ad55e49a29b04e974631690464ba71d0a8809c9f511fbc87a66580. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7caa4dcb-568e-4b7e-b1ea-d6cdfb25ae79.json and https://artists.proofprofile.net/proofs/artist/7caa4dcb-568e-4b7e-b1ea-d6cdfb25ae79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Cats & Dogs - Serene Nature Sounds for Stressed Puppies & Cats, Relax Your Animal Companion
Crazy Cats Music - Relaxing Melodies to Calm Down Your Crazy Pet and Make Them Happy
On the Chicken Farm - Unique Collection of Happy Hens and Roosters Sounds
Animal Love Zone: Take Care of Your Pet (Relax Instrumental Music)
Underwater Sounds of Whales and Dolphins
Puppy Spa Massage: Relaxation for Pets, Soothing Spa for Dogs, Puppy Wellness
Music for Pet Relaxation: Soothing Sounds
Ocean's Pet Harmony: Music for Animal Companions
Melodies for Pet Serenity: Soothing Sounds
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5515a312c97136223ea2de4f3a30069e1786b05e360694a5f116ea25a1be5413. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDD2473587.
Soothing Melodies for Pets' Peaceful Rest