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 0x00078038d8240e34716f148a49b8f9dbe97c4514946b5adbeb5fdbe2acfb76db. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c3b6dc9-0049-4f1b-af9e-1555eb56ea92.json and https://artists.proofprofile.net/proofs/artist/4c3b6dc9-0049-4f1b-af9e-1555eb56ea92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pet Relaxation Anthems: Calming Tunes for Companions
Relaxation Melodies: Calming Sound Echoes
Relaxing Canine Melodies: Music for Dogs
Binaural Bird Song Serenity: Nature's Calming Tones
Gentle Rain for Cats: Soothing Sleep Sounds
Ocean's Relaxation: Soothing Sea Ambiance
Sleeping Thunder: Tranquil Night Harmonics
ASMR Downpour Dreams: Rain and Wind Symphony
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 0x2b65f7e5f8ffd90663af84e689db07eda813fe93c5431910b77c8a8e24ef433b. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/SE4RG2029801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e85af828b541fc2c21630b265235f8a6f44e31388e14e9a2048b7d78834b139. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE4RG2029802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e591a6c6853f51cdfd126c1a6c0725899205249d9f30e4791c10d411ff59d11. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SE4RG2029803.