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 0x6f927a4755f7bb8a7af93415bff2a50fe9a2ae381a1d585e3eb387875a00c23c. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/736bb998-694c-4ffb-bdaf-84cc653c26cd.json and https://artists.proofprofile.net/proofs/artist/736bb998-694c-4ffb-bdaf-84cc653c26cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bruit blanc Sons de la nature Sommeil de bébé
Labyrinthe de l'Abstraction du Bruit Marron
Exploration des Rêves au Son du Bruit Brun
Plénitude Nocturne avec le Charme du Bruit Brun
Rendez-vous avec le Sommeil Grâce au Bruit Brun
Bruitage vaisseau spatial - Loopable - No fade
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 0x93cd9012748eabe1f26e77850a775b475438e32cef998e12219a2e79a4bf31e8. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DEN982343198.
Bruit brun pour dormir - Loopable - No fade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafea1d4cb47c9bfa422f4074098d1e16466c52637fa20883caacb0865a45073. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DEN982343201.
Bruit brun apaisant - Loopable - No fade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0927b67baee57ed6017d98b574c8c5a453510345d6886336047ab41609da9ba9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/DEN982343202.