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 0xe41bfbcb4cd1d04ca6f65799cc3390d3d2b7834a329a6a6b347ddf3186ea8063. 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/de5176fa-d2b8-48c8-86f8-37545bba1d1b.json and https://artists.proofprofile.net/proofs/artist/de5176fa-d2b8-48c8-86f8-37545bba1d1b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x0a2865b2cfaf4ca420631cb0c95649405e4f3d92a21b4b4d000332097f01487e. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FRZ110702211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452d089b67901bd5937f189507db2d731c4e6ba980975f0d203466a76aacf047. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FRZ110702213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d13bc15fc8aebce405b4fc04a366c9a5e38186cae0fd71b26978c2d703cb90. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/FRZ110702216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390d561aeebb4834794717eba7150838033dd6fed9e6293760ac429c2548c400. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/FRZ110702220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5234f818d321d30d73f21f0d811da32e90d36a544f9a307fe657480609d0dd. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/FRZ110702222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c5a290de9dfdec329cf91d5818df72e8a3b48bdaf17f7565c938c6ccb30033. 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/FRZ110702226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe334bb817cfd265d203b00a47e6ff58ea1d8561d2ae4ff4a44f563b103e76bd1. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/FRZ110702227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d800c4ce367aa532da3a5fad0637aaa3cb4489168532e6e3c062b67c36128f. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FRZ110702229.
Le Meilleur Du Monde (feat. Corneille) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c73aea3bd352861477d8e918fe0125d6b1a92c1a1910ae0364d378900f85dbd. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:45:11Z), 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/FR7Y31000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a01bf476b7cb69f2f172c864166489707527bc7a84f97d27e9f4e997bce692. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR7Y31000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fbd5dc36c4856067a80cfe292f436fc4af90f5e49c689d9c9781fbec49c999. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FR7Y31000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76164627f41ae24162c779adbe2a17e2a16a8b94a9c316ea955e8d1b315e6b8. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:08:20Z), 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/FR7Y31100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a01bf476b7cb69f2f172c864166489707527bc7a84f97d27e9f4e997bce692. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR7Y31000002.
On refait les choses bien / Mourir ce soir / Godzilla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2853cac5f636d3b09330fda1a0e8dcc5b6f29f47e545737dce331f25397d9be8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR6F31800610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2853cac5f636d3b09330fda1a0e8dcc5b6f29f47e545737dce331f25397d9be8. 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/FR6F31800610.
Histoire vraie (feat. Yezza) [Remix] - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04413570dead2652adb9f75ce843527e282925e7d4668c28b74c717475bd2d6. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/FRPZ92317850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2585cb202bddb97c54ee53bc2c2feb564cbdb6ade38c0730cc069750fa041e9a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FRPZ92317860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb48efe940175194b9b29893cf3552f3e17c50e57c977c20cb2f475aa6f7d94. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRX762125255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511bb0ce35c64e0227ad5e80ab013d23aa25203f024943fa9a4d8737f9c3d3b5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRUM71600554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb48efe940175194b9b29893cf3552f3e17c50e57c977c20cb2f475aa6f7d94. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRX762125255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afea51df82498958eebe38df06f93a57510af625d439288fb9c9061e07b9dde. 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/FRX202205394.