1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x78a4d3c47f8ab3b4008a4cf5edb03008246895268e35ac61fe2002d9e48c9508. 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/ba2aa5d2-d55f-487e-8a28-f69d92c5ceaf.json and https://artists.proofprofile.net/proofs/artist/ba2aa5d2-d55f-487e-8a28-f69d92c5ceaf.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 → block OTSBitcoinBlock must exist at that height 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 0xa1c9c7a00d5f172246f7e4b3b96638cb3125f32c6007d8982e04a7faa8884e47. 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/CAI549301008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceaf60d7296d9c5b88edf96dc114c6d1ae296bc4dc12c5c90a0992925fd9643d. 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/CAI549301007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68398919982e28c25724a9cab8cc854cabf809902eebc4352fa2383220016c4e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/CAI549301006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7336a9c56588638b35eee199fce7ba55b304c9b403f185e41830c2072d4c71. 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/CAI549508002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d58dc35233074d1ee74333ed555e8bef7f895bf94e4c882a5d9ceab772e8d5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CAI549508004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef4abc81eaa85f82729662626e0e572ea832a9db578e3def757067120e48233. 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/CAI549301005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceaf60d7296d9c5b88edf96dc114c6d1ae296bc4dc12c5c90a0992925fd9643d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CAI549301007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd318e156fbccf4483261b69226b711446318f13cb1bb7a4bd54131970e87bc3a. 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/CAI549508005.
On Va Crever En Attendant L'Été (ou l'hiver) - Live at Le Spectrum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc753208dafd875299d60ec1f11bc9ef55b7f77f868a7f981a94d55d759a54102. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CAI549508007.
Le Pouding A L'Arsenic - Live at Le Spectrum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07849013ef5a85bb6f7a3b8084003bc96695e70467634a58a6608e22fc2de19f. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/CAI549508024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c57df79e7294644268869762d016909cc39332416aaed2f2cb8502a230b840d. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/CAA500907704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4c84432a427224cb4f54b855c4e9ca70e3af09f59e811c5253ce9231cbb6bd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAA500907707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b967f798f28ee7573028c9e13ffc1b2960383b5ae040e028fd57e45be9cb04. 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/CAA500953101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb754adb743d0e99d91c0e435ee88e66f5f11530f9c29d16301b611a9caba33a. 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/CAA500953103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003d0c324e2ada8b17ded5c7753c7f74e4eb36e49d3b99849c89fda1081742dc. 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/CAA500953104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2799688c99aa4dca29f84f6b2b9f640dffce5ad825147a756985348720cae2b0. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:36:39Z), 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/CAA500953105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f5c18e0a72d0d8ee43ffe9621f50080215144a675b9e8437233dd36b48228e. 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/CAA500953107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3ff248413a96150138770bf58485d17b4063c1b0f9d5a5e9cce63c15ba5ce8. 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/CAA500980801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e240fc4e286c6c13623565f80a4f70906d8dc55f6d58498331fbee82acd883. 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/CAA500980806.
On Va Crever En Attendant L'été (Ou L'hiver)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cf395324ef8d10b22f604238d77671c37e300a7f26b8f573cdb1756cd52e36. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/CAA500980807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9a2cfb9b90467e6cd8476c95415780815fefb2f647878193dc8355fa678f7e. 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/CAA500980808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781c15195a144d1b4a076c6ec7d025cd13f8ddac0a4dfb4f95973f6ab111349e. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/CAA500980812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a6288012ea77636be97c4300867567d6dde15c6bb9fe4cfe53b84db7608e67. 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/CAA500980813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34b8384c315ea783b7eadabf40a7f19b0e24ea4920b0503dc5dcc72d6f41c6e. 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/CAA500980814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa707f412f6f2e16ba5d23935c5fe16a5e4ed29927ecb50a7f76f07b08aded8b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:40:17Z), 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/CAZ700903691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1ad803f814fe145ee72c0b4b3b05dfa13698576a25217f5f7ffceca08adfb0. 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/CAQ521096019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4665de7bcd4b15b5c8d4f72ccafba5c6ce192859f147490f001da9146159020f. 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/CAQ521096015.