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 0x83db0661025ee442fa79cb5f62900ecff2f56edc0aa95408eee256bbca6f833f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14098eee-ce77-4341-b168-07e401f16685.json and https://artists.proofprofile.net/proofs/artist/14098eee-ce77-4341-b168-07e401f16685.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Selección de Música Clásica Para Dormir, Vol. 1
Selección de Música Clásica Para Dormir, Vol. 2
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 0xfcea3f9bde8121e9677ee4e4812f6e74c573de73bd685174978c0a0072d6a9f8. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZAKB2003939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593a284dc0276300dbbad6bf9082331c0fd9b2c3b611936f1808a1a987791c0b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2003947.
Vers la sérénité (Musique calme de relaxation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83aafd1489d4d22495d4dcc0f943b7d7792c71fad4cdcaf573d108668d5ec567. 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/AUGBT2227781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305dbe6a42ba2937fe16fe307622f8b520cf8134ad38f8bac5533ae12e61a988. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUGBT2227782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615bb657e9cce7fca6c1fe75cc307ab804410aaa8cb4030714f69ff6808f1781. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/AUGBT2227784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8153938e2fc8a45dc8b6d60f3dce8cad026883418dea6a9d7e413df230fdd879. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AUGBT2227787.
Musique de la Mer et de l'Océan : Vagues d'eau et de paix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2b2d56a561deb939ac0c2aeec1afce851510aceccc0ef024b817154de47c5e. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZ5FN2342589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0aa594f6f43f3f3dcc2ea3e44c90137a75f2a59df48308344dd050c1c72a58. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZ5FN2342591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb435e2f9756cb592d3980deec94218567d73e89597dd7aab046faee388c898. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZ5FN2342592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95a9d4d1495ca19b3f0bf4cbbcb23ef43a2c0231292167e3304cf9ad2863cfe. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ5FN2342598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4ed8f4c0636c34ebb4c341b9cc87542035cf90a26945247a35188b9b1569ed. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FN2342613.
Sons de la nature : des grillons pour se détendre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149574dc0ec1fa2f6d76f37633a193be6c6657ed49e09148979722266a9c58c2. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:05:09Z), 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/QZTV32304355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bc29bc91f81277b8dace7bf61ab1fcb7e8bccc6c2807540620b0dc6ed9cde4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZTV32304369.
Silence Lunaire: Musique Relaxante Sommeil
Rêverie Nocturne: Musique Douce pour Dormir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b39cbad9b864f4d18e7e481086e3abc6c82f64e8f24d29bf172dfef984a349. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/DE1JN2448055.
Exploration du Royaume Temporel de la Sonorité
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778292f31fbce1f8315c8ab704e08f220cdccd23e4dcff2e01f1250b5ecef304. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DE1JN2403343.
Les Contes de la Plume: Un Repaire pour l'Esprit Littéraire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07af480ee2e4010f32602032802cc6e01683cc3524239913c2e6616f46f70408. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82527098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430734bdba7e480f516fc1c059537799d08040f26d1d52e02761f8ff79d0122d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82527099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf238a0d5ffbf8e060f3fab9147dc9db0c3930b0b63b7d82c510dab45cc67afac. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEPI82527102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5bf94ee4f491529097241d18ff854b3f45993414cf6b0369bea7903dfbc2f7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82527104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daeccf7804bae4600a8108f57bf6024792640d7d38c5931e97bdf92d7114020. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/DEPI82527105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fcdd4b8ae6812a9f04f71cb0c27d729a267da268faeb70f9bfe0123ef56372. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEPI82527106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb536603a082607aa9c7029a7f6a12ac133e9c9634c61cbbab93889d7fd93110. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEPI82527107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d42e6f3afb2f723f7b744204c73b9ae6b0c67d072526fa1775a5373fff77b6c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:47:20Z), 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/DEPI82527108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6894548c12575f6e795f9ffe7cf79c9931da0e0cb4b5a2658d71e43008f68b6d. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:55:37Z), 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/DEPI82527109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c1cf33cf37c781ccb20d2c86ca5368a7f9fe56098774fc30364a8716350176. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/DEPI82527110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7426cd21381184aab77934f7c17ffeae6f736cf117b33ca6b2b4098eb243b21. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEPI82527111.
Immersion Sonore pour la Détente et le Sommeil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86673b24cba02430c312daa93159749eb5804491e562c825c0e58079252b3632. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA012581448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983baff3b956b4bfd5a40f75c87efa1fd19dde0e8674efef35a27c397151d5dc. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ESA012581452.
Sommeil Profond: Musique de Piano Apaisante pour S'endormir Rapidement, Plus D'anxiété
Voile Nocturne: Musique pour Dormir Profondément
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9665d70f87c46ecaa6f21f7158dab1ff7c9a85e5930127589314f184cccbf1b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DETL61413089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79cd8fa6c5a4849406a1d5cd0b88f0dce1ca63de1e8353acd06ee209d5b93ae. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DETL61413091.
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