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 0xf91f9e388f052b4e0fd8f3565d5d37670e6cc067172bf96f723fa11f5676c765. 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/935fdfc5-25fb-409e-a921-5260007d53a4.json and https://artists.proofprofile.net/proofs/artist/935fdfc5-25fb-409e-a921-5260007d53a4.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 0x39223afa647ef5332790b5d1b85256d441f2aee97d9374bf84b02398b31e141a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRZ042000953.
La ballade de Chez Tao (en duo avec Izia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3428e012278c8999f7ce3a0adc062ebc72f0a8c675c0f3da0b55cb766f1f3f43. 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/FRZ042000956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fd52e96126f0847721abc56087af729c890e7feb956cd924e52baac780543f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ042000957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95aedaad293519ea1ee17554b8362edcf7aacf849d2358cc8542d16683800ac7. 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/FRZ042000959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55606e7d8f0f803bf0fd71495882f5422551539b1aa6834af3d432492eb9eb89. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/FRZ042000954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a4bb8e953e610d1958ac950d744593a5bbd79d70a74bbd23e23e6f1eeec4a8. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR5R00910943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e74036a28494b0acc1efb180b749f0a462b64a18f6dcc5139de938e14dbf09. 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/FR9W11801149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410bb8013b1f0929325021cc9c2e0f1dd5b219cb1a62beb43b4ef62a88b79a9c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR9W11801150.
Tout ce que tu touches (with Bertrand Burgalat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c75df542bae5416201cd2c83b697a268a2ef9a4913c72d1ccb7b2be2cdb222. 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/FR9W11801157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca8285a830c7b3500e6d45452ef38e4e5e33bdcbbf42a4168a513f6672d9d56. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR9W11801158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b4bc14f80eccedb4bb7d2e2b4e1c46614b824fa9d5df34ead47572d7ba28bf. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR9W11801161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498811331d4fd5a5c5a169e2aeb1f638f340106aa53f0b6637ecaaa9a0eba3b0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR9W11801160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c505fb2e0fcb4cb1f4468619d0dd5ef4ec8bc6eda3f0793aaa30fa9e9098f82. 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/FR6T11200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f76d21868b4bc027efd9801d12d56d40407d79f58089cb5a84f71236fb9d372. 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/FR6T11200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecbe5c392cf511fc9bb05ac68444f9183ba8e6ad77e1015d27f383ff5eef962. 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/FR6T11200160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc776bc644f6fdd1a9ab13796db0604b1625fd38f51fe168e277f835fdb0c4805. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR6T11200190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f089350cab1fa08b93c710df4a44e37b5cec07aae1d77b5f5026e7dc5ea6fce. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6T11200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8728028343baed22d87cde7b1d07cd8c7628ef949ebd0646cbff1478b9ca48. 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/FR6T11200210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d856a561dff5a13119f2fc3a9cad271ee26bd9d78a228a6ecc3cc86e9742cb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR6T11200560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f89c112f8f14431f8b23d783721b941f4681e9a052b6ec4a0ab8f8a37c6ebf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAFL0700228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab12a34ad431ba941e81f031e3dae955040660673222ae013686a995f6ad506. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBAFL0700237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad771e5d1b6cca96dbe74349586ca06e87ad671f2c641ec9acb4abc33786da3. 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/GBAFL0700238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ca8ef527cbbd6b244cb11a2d611cc5f0200bd4609025fa23dd022cc5141613. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAFL0700234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101478cc9820606710d1fad93967d74f6719f6a5de1a8dc3f31faff78639736e. 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/FR73U0600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98dcd239959dd0caf62cea40ea6fe163e9246020f520a95b1eec5937005d475e. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/FR73U0600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04a70fec66826e1e2362cc0593a8fc1bca5d37f73af53b94a9a2fef6659de1a. 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/FR73U0600050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41bbb497c4f7cea4359e9f035ba0b462ef775ca0eb03e543262660c0176a5d5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR73U0600060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e31a3eef64a5c447ba6b73582169c02d45948b89b47bd302d222c3b015e5fe0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR73U0600070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3dbb76c49be29bce1fdc2396666e918d8ce45e8a5ef604db1bfbe74a933395e. 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/FR73U0600100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fac61d57bde00d41aee1aa5321a0a16f38998a73065ad2e55ab661437d8b6a. 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/FR73U0600120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0129cc4082b17a854a4ac5830b737ef5140abc3707baed94947c520c7853cc61. 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/FR73U0600140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc84d63bbe4827128b4af8feb648bff0ab4b795cd3b088d0dc09ab6224c0bd72. 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/FR6V80500301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7a2fc50f37867039b7451a64b0b5dfc3b54d9e1b7dc8b636584b098ba7e713. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR6V80500302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730f546ad374a189d5da4bcf179201ed3a008a7d43071a53b9ce5d2e8937e579. 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/FR6V80500305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f2a274c2b18c47f8205aa2f95b362acb2fdb979eeb5d9ed657be870056130c. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-21T17:29:15Z), 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/FRR591900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410bb8013b1f0929325021cc9c2e0f1dd5b219cb1a62beb43b4ef62a88b79a9c. 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/FR9W11801150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e74036a28494b0acc1efb180b749f0a462b64a18f6dcc5139de938e14dbf09. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR9W11801149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a02726c447bf3c471232fbd02cc5616ff3e800e8386556986752d3932a23eb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRR641700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edfe1b679f8d9107422f599411275a2bad0d9fbb90d9506da2cb1c2ad0a42b0. 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/FRR641700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb455fb61e27c0da8bb108e67f0d18687ecd227c64b2991c811a65a82876db855. 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/FR6F31902700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb455fb61e27c0da8bb108e67f0d18687ecd227c64b2991c811a65a82876db855. 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/FR6F31902700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff78069bcf1db8650b60e0c082d8c0628534bdba9842176f4459ee16ed9de06. 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/FR40F0600090.