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 0xec1fc9b2d41fd33763c8e59750c4b231ab2904e77922adf11cb857cc9de48d48. 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/ace2fe66-48fa-45f3-8ca4-1eb15910f944.json and https://artists.proofprofile.net/proofs/artist/ace2fe66-48fa-45f3-8ca4-1eb15910f944.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 0x36f8deda7fd8b21f8c822d80a800895aa84706a9f101b6619836871705431f99. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR6V81765723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38df7c44125a9cacc56652e164eb57dcf020730ecec576904dbc5219c6141a88. 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/FR6V81765422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd9ded783e01dcfdd0f34ed5b4c090cf4cc03c9bde8abd66378a20c838067b1. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/FR6V81765425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0160db52b26af220782fe14331a092ae07ed4d30765a2b12599c7ffa24688a. 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/FR6V81765437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7949da7c494de912419d55056cfbfc8c63524d51103cf463c8b865b890c859d2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR6V81765440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615933c4dc51760fe73923db9e2a3dcbf8f9c9565bfb5e04957de02637399348. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/FR6V81765441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5634d360391b612605b5bc56e7bbc75d2017d5ce9413078707d3686432a2c05e. 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/FR6V82672961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa65c3d8fd7931aa6ae5b34e8e7904f6eb654afbdb1eafa84e71498732fe840. 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/FR6V82673144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a073e553c95a3fc9e1c9acc33506deadbf2b4438a8fd39a0e11810c2f74aad4. 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/FR6V82673149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a4408455f3649552292c4eeaca19c0f506137e7fe41aadbe0e94cf1f512d37. 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/FR6V82673153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591e88b9dae3e2333356f5ba55fe90541d6952bdb5ae8dc18ea5712ef160746e. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/FR6V82673163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5ac8c77039b034d03ad290cbfd6f29865879ad2506f2dc623ebd1af1412e61. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/FR6V82673172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf09b8f6652b25bfd961fb6137eccff27ab384c551b4be41a26b744ef94585d1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:21:39Z), 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/FR6V82673173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf31388b34fbc544a06841e1bab75b4d8e12ae68ee3360bce290df5fd23fd18. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/FR6V82673174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5edd65cc0358189b60de873098a092c9661ecd8b21c4b3af9d9c41988f4cb9. 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/FR6V82673175.
Ambiance mariage tunisien (Mix Non Stop)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c1e0452753b445f8fc8f971e0084a6ff8f56f6a84156a4d1cf3e8b1bbdd879. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR2X41586342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8849c9ca777fa6245a4aeec4f05b65f5cb46f940907b03fcda63a6b9a7a2d839. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:15:53Z), 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/FR2X41586344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0ed626e05fc9a441555990e55bc701fe5f4751b50a468099302cf0b39cc9a0. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/FR2X41586345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5420b948320c8ad9bba68c30d6059002c5619f9d34b8373aa31c270609a535d1. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:32:22Z), 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/FR2X41586349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033c5e28de842d8c186b8d286c74d40da1ebd257917c242136a96f1903406815. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FR2X41586351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fa0e98040271be25790acc5473368ecff80ceef6679935825d8f69b9a1a94b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR2X41586354.
DJ Oriental (Algérien, Marocain, Tunisien, Egyptien, Libanais)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e9da0b1f9e6950ccc634240487588209315a91b075fec039b41119f507850f. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/FR2X41586395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc7c5a87628488dee67eba12afe0f69bf9deafad5762bbbc547394053b877bb. 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/FR2X41586398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6db09961d0f5923b3dea4862db92f9f26300adc47495c032be52584db00eec. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:00:13Z), 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/FR2X41586401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6005f415ae83356c706b829ebc22b705716ae7090637d3f06375c9addf0fdb2. 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/FR2X41586413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c5136576effaa13eb2721bbadb63ad0aceb7194495135e779eb45fc73f73d6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR2X41586416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae305a9dd28dab14d8ccb9a1961f2159f1ef86305996d80bac48b72998c2b14a. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/FR2X41586417.
Ambiance mariage chaabi marocain (100% Fête - Mix Non Stop)