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 0xa16ef961c6e9ad6d30c2eff469594f4449034108d7cc27864bd82770adbdc14f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10a0b481-81b1-421d-b9c7-b5bc3ecf25aa.json and https://artists.proofprofile.net/proofs/artist/10a0b481-81b1-421d-b9c7-b5bc3ecf25aa.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
1 Heure de Vagues de Bruit Blanc de l'Océan
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 0x6cdc2dcff4ddbe9faf925d2ef247e9eb2a7136e85c8d970fd6e173bc5d9b955c. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006247 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9373d3279c64a0273defeb829bdaa221500990ad984dcb6b3f133c4ef850fa5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006452 — a six-check JSON result.
Piano musique avec Chants de baleine de libérer le stress
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45553511d8a7257f76d2485aa4a36e9ce25d6673112bd43a4ce5a0e2e45e3e8f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006107 — a six-check JSON result.
Relaxant Piano avec Vagues plage pour l'étude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1b3b5ac76321b831f9bcc21c405efb4d0f4f47453c8bee953b9efb529951f0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006109 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d0e0122b1324e0c32be5ef5f22e1164eaf521a16d03f3c2d781be45b256de3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006110 — a six-check JSON result.
Relaxant Piano avec Chants de baleine for sommeil profond
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab5b3fef262c55b4481ead325ed00529c4dac7265b2eeb1dd93c8c00bfc416a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006112 — a six-check JSON result.
Sons Grand Piano Océan pour sommeil profond
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a5000aabc6c9ec909eb6821c9d8f66d179d44751d6cbbec45dbad6dc656d61. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006114 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4868356d09135f299ad309949d42b296d3d8a54ecaa997491b784ed894118e3b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006118 — a six-check JSON result.
Vagues ambiante Plage à libérer le stress
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b592159df4bc136cb9ad910f4d36b5aa85f932b4362ec6dd83972adafcb496a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006119 — a six-check JSON result.
Piano musique avec sons de l'océan pour libérer le stress
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89850bf47bbbdc4641e42315c71fb725c916783154b4e4d0edc0f1aae1370abd. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006121 — a six-check JSON result.
Relaxant Piano avec Vagues plage pour soulager l'anxiété
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded1b9e30782d878b2a34a58b4b3b28840d73b873abd7a96c5cafbf33cd95c23. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006124 — a six-check JSON result.
Piano classique sons de l'océan for Cats
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ea063f8d04e907df4c548636894810e5e296eb140f48629099cf03ec68f1be. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006126 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710b214d761d78140cac545397f449d334a0b5ac53f3ec1fd0597045184cd5ed. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006127 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16cb9a7a0e49ef94c7cd4131a5a84b8634a93c1b05cb3526f760a856ca463bc. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2006130 — a six-check JSON result.
Gazouillis des Oiseaux Pour Commencer la Journée
1 Heure de Thérapie pour Libérer le Stress
Sons de Pluie Douce et Musique Apaisante pour Piano
1 Heure de Douce Chute Gouttes de Pluie sur la Plage
Calmer la Rivière du Bruit Blanc Pour le Sommeil de Bébé
Reposez l'Esprit aux Sons Paisibles de la Forêt
Détendez-vous et le Sommeil Dérive Naturellement
Averse à Mise au point: Étude pluie Musique
Séance De Yoga Pour Débutants De 15 Minutes
Rythme Oscillant D'Ondes Douces 15 Minutes