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 0x3ba08b69f5d142d91d269e7f22f48237310b23208fec27b82ac04aeaa549face. 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/37bf558b-bcb5-4880-aa4a-669f35e6fc21.json and https://artists.proofprofile.net/proofs/artist/37bf558b-bcb5-4880-aa4a-669f35e6fc21.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 0xa82254f8025aefc0128f1ab8e0c7f355673720991fe194de5f57ff6026e5c4d9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:03:42Z), 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/FR96X1815702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885bc46df1186b21e8d65b4696d903aa658d707c356cf60bb875c62ffcb74bc1. 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/FR96X1815707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89695211bb84304404044af59c04363d5dbb3fe69aff170150825b20014496a4. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEI1943793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d73daa308783422beecb9ee59adbf5af4779f1cc5e9904a273228443f83386. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAEZ2016838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfce20b827e1698ef7ddfc3029e22daa020540a7d5a560da96cb3975cdcd525. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAEZ2016857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4dbdaad31661718b6ebf2e3f3a164d19023107a37fc24153e676f66f024540. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:20:25Z), 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/TCAEZ2016867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc39b3058ebadf4ae20824871d9282f5bb42353d73144857374c69de67b6e30. 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/TCAEZ2016870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c09fb409a8958f9031a516cf190fe08ba9701e2c6e87341c4863a9ae0f3c4c. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TCAFB2050012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cbae838e01cae51b62d99fc354fbf01bbd7ed842bf70153606931c31daf765. 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/TCAGD2235449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7510877bf589cdf09a2a245889ee3fb6222b35cf7ea5fd780e817031570243e. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZ5FN2304222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a0bc7eee48635901ed492847e0c6a93b392364d018d691d3af7b5e7347c0c1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CARFQ2100215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5025574bcf634c1e4c4c9a80d91d3245c00543954eeaeab81a8ba4eb1fb2583f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CARFQ2100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67b4725620fc2e8f6a0b66c9d42bf05ad1bb3a74ebae990a8d9e128cb837e3d. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:20:43Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CARFQ2100218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd286ad79567b86c8b3566be7795832b7fc41a38322489390bca2ad3142e4f7f4. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/CARFQ2100221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5d34ddedd4a2bcdfc2cb26c29f42a02ced6993804710f1164ce9306bb01d66. 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/TCAIP2431773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148a53104765b3426cf6084e0af27f22e0aeb9527730940d8833a521bff20324. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAIO2431777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67adc651d93b2fc4d6ef5dce7be8a3e55445a5e67af396c536fd0d6085ae4e84. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/TCAIP2431812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7047d13a4d0111ac3fb1f69f3538bd268f5354ea3b8fab78a25520adcc8ab99. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:07:40Z), 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/QZHN92572478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d341437fb1d6a515f66b5dbfb6b91b1d2983ff775007a135d23e89d61fd510. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:55:49Z), 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/QZHN92572479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fd1d3ccc80ed8b259c778dd225056f24acd7af8830c96f2c6d402cfbd4bb96. 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/QZHN92572480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb744b6cf89ffc5c4aaa00c74eeb9dc7ef98b838194183464294f4f7cb27c206. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZHN92572481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136642a90fedd9d66aa3a0c7477c007a2b9ce3ec172d25222397e810fb663c49. 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/QZHN92572482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54187523578ebcb5fd999e72966501c4fce1cc6136827a79e277fb09b51f58c7. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:08:19Z), 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/QZHN92572483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8ea18da9b97bdcfe5a1eda673a684aa5c4cf88dfdf437b53d78d67b32e14e2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZHN92572484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891a1501078d730a3f902ed473ebf764b808a25b69921aeb3add7647153ddc8e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:34:46Z), 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/QZHN92572485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8542f25dd7ba2fee7f1b5980a958abe46f022784fe41503534829df91f69da10. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHN92572486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12b4e018af2b671994c3893dde9c5dfbd7b63c2d4db675935f4efdb56d9d7c0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZHN92572487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabee01e89eb4819fa1408538304888427491b55196157e16372b471d3794f897. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZHN92572488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ca4446dc867275726a121016e272559f3ec51a45e250c2bb1de8ed416613f9. 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/QZHN92572489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289c1d9ccf0246cb52ebc39dc633f8f03b4bb5f4713ebcaa770a944238872f47. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHNB2518181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6082ceaef4f2af18573e671a79d0aea9d2a9f7af70c812f33961a45e3ddf1886. 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/QZHNB2518182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be5d023cb6797583a9e5e0a145bae384f99870f1174e474b100d8bb216350a5. 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/TCAFZ2239243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd4177938f8e678ada4860a0de4164720ab2d4bbcea59ea4a8d710e1bd58944. 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/TCAFL2125027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d90a8269f30e24bd64c421e7c6aa26997985f21b2502d9d9d789ad5fcd4ce40. 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/CAQSY2100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b4b08566c765322fc9b6dabf26a984a1cdb62caacc810def9375eb6fe5b9c1. 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/FRX762213630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044b990abe8b62ab81f9fbe3b20577df0be84adfb9f6abec89e9285dba648b79. 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/CAB582200501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044b990abe8b62ab81f9fbe3b20577df0be84adfb9f6abec89e9285dba648b79. 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/CAB582200501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbf03993aafe43cefd93c780e298f336d86214cd03c8909afc8379766493244. 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/CA3R32100076.
Non coupable (Jusqu'à preuve du contraire)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbf03993aafe43cefd93c780e298f336d86214cd03c8909afc8379766493244. 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/CA3R32100076.