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 0xd233ac1445cdf24921695dcd33152eb64f500110c29e8fb3010026189aafbd00. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/168ad879-3ffc-4775-b40a-2b0e8a7d592d.json and https://artists.proofprofile.net/proofs/artist/168ad879-3ffc-4775-b40a-2b0e8a7d592d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
#01 Peaceful Music for Sleeping, Relaxation, Wellness, Dogs & Cats
Serene Music for Night Sleep, Relaxing, Yoga, Next-Door Noise
Relaxing Music for Night Sleep, Relaxing, Reading, to Let Go
Relaxing Music for Bedtime, Relaxing, Reading, the Bathtub
Relaxation Music for Night Sleep, Stress Relief, Relaxing, Pregnant Women
Relaxation Music to Calm Down, for Napping, Wellness, to Release Serotonin
Music for Sleeping, Relaxation, Yoga, Holistic Wellness
Relaxation Music for Sleep, Relaxation, Meditation, Reiki
#01 Relaxing Music for Bedtime, Relaxing, Yoga, Lying Down
#01 Relaxing Music for Sleep, Relaxing, Meditation, to Calm Down To
#01 Relaxation Music for Napping, Relaxation, Meditation, the Mind
#01 Relaxing Music for Bedtime, Relaxing, Studying, to Let Go
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67135e125dfdea717c15691632b9a9d64683fbb9004338b68b039ece29853921. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEYA92371069.
Relaxation Music for Sleeping, Relaxation, Meditation, to Stop Headache