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 0x3fdb7002a23fd2a8b7101e97f6a52b0fc44176727652e1cb9d258eb9d0fcfc8a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6565f8c8-f8e6-4fa5-a9da-07d7dbbbc090.json and https://artists.proofprofile.net/proofs/artist/6565f8c8-f8e6-4fa5-a9da-07d7dbbbc090.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Les autres hommes (Bande originale du film)
Sis dies corrents (Bande originale du film)
Nom de code DP (Bande originale de la série télévisée)
Le collier du Makoko (Bande originale du film)
La nuit des éléphants (Bande originale du film)
A.L.F. Animal Liberation Front (Original Motion Picture Soundtrack)
Louis XVI: L'homme qui ne voulait pas être roi (Original Motion Picture Soundtrack)
Louis XV: Le soleil noir (Original Motion Picture Soundtrack)
Si le vent soulève les sables (Original Motion Picture Soundtrack)
Les caprices d'un fleuve (Original Motion Picture Soundtrack)
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 0xfbc1879d8b5923a9b859ab3dbb642716c46df0a3306794cee160f6364faead9a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR8E72100151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb865847cc6b2365663b85206b438fc64b000dc14cbf000457e6ddb8ee9f6d6. 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/FR8E72100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8779ae218ccffbc2b83a42f9364d581d67fde287c52f3caa03a712cac8dcf32. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR8E72100153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c92a80862739532bb0cbdde5a0e0438ff39ba66976e8fa919f03c9cb516e582. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FR8E72100154.
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 0x6545963b8d392787602266ee031606cf02a4ed016a5e3a83397c5bfc3522c4f9. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FR8E72100155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf357cbded4a7a393022128068f74207178273a1a5ba340d2b566fffc25bb39f4. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FR8E72100156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efddf63541b084bb8aabca5ebbb098121dab113b61e4219379c140ecce2361e. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FR8E72100157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815337ae54e1406a1a07caeb4b544db0bca95db2d8eaff8699e79fcc3de9e563. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/FR8E72100158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfe1e79e10a28aad4a9639461d90ee8c34ab3929a7d341ebbf438c77f98e8b4. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR8E72100159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadd2d6ce1b8abee625f1ad5b446bc8dac6ff093c169e9e9c611aafd209930b2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR8E72100160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72c1238c53f489aecf5fdd9ca8cdf4e3835a52402c1a270c3aeb98a8f221688. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR8E72100161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6af3dd8c26aa14f078dd8f94bcfe2bae8dd54d5d2bc8913dc98e55ff16e13d0. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR8E72100162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d51e9d17b636265e9309e73f1bbaee2838cec39118d87a64bc396042224096. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FR8E72100163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68850b0b5c6815e23ed3692873ae5357de82ce62fce1f3037ea74dc6e9917d07. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/FR8E72100164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381e632a3ba01c54b97613bf8dad25c68ea73bd894d1f0d21d9e70f52b54fefb. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR8E72100165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2baf023c630317ca7fd59c455f6fc8c8b1c4f007091674010ba6af2baf0130f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FR8E72100166.
Grosse fatigue (Bande originale du film)
Robinson & compagnie (Bande originale du film)
Noir océan (Original Motion Picture Soundtrack)