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 0x8916b4df590ebfdab8a521d9e2ce2b7131768a9bebf2540b3521a1a052a2f2b5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c88e157e-7827-466c-84d9-2b8f15d6832d.json and https://artists.proofprofile.net/proofs/artist/c88e157e-7827-466c-84d9-2b8f15d6832d.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 0x2e62cee966a42263ff1740a9ac05693ecd95ba27b743a84109d3d6abe43441b7. 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/DEMN91300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389df878be6d25237403488282df42c3ed1dac5b40c29426979659515d05097b. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/DEMN91300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2d12cabdef2901cfb2898dcfba278d9699982943cd3540316a3cd50eaa0732. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEMN91300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d81295e18ff660c10f49302be90c7c64eb269a932d38dfe5446657d9b0e074. 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/DEMN91300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4aad3578ee840daeb99141b5b6d015ed1cbc7ec271b486c76d3659e5b186ec. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/DEMN91300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19702bcb39c9f92cb426d4b85daa9d431a4b4c6882797901e823163930006b59. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/DEMN91300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcb35e1c4735361faa27d087052bd906411e7b61cb39c84c944d79c2b9567d5. 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/DEMN91300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e959834b163d3fec2337997b9315679eb19bead3ef49d35d2d30e928106b57. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:09:14Z), 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/DEMN91300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a090fd9f89bdf2481382519ff6c7c1e560ffc9a05ff98d2219d2c04921b71e. 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/DETX91500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ded429db59f85e5664728be85061cdfcf1dd485790bf6e19f40d0dad0e0173. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/DETX91500157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f88d701ec8b64a73b51a99f53aebae4f33286570bc8191bffee425a58af05d6. 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/DETX91500158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa059c7b2b30c21d8ddb41293d5804c165256045944a1c20ed035073e279efc43. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DETX91500161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386d495d8d8856a3039b9b1f55081a2ac0b05090023e8b05001a845bfcd59132. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/DETX91500162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8086d6702d7504d326ed37cc0766da5bd2a395222f82b81c496b5730db0dd668. Chain 2 (Bitcoin): anchored in block 958363 (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/DETX91500184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0af5cebd8a68f16e6bab49269ce39f6d9a2c02923a80e3c9761f42b9749c7a2. 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/DETX91500164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecc88997e8720f2d58cc28126e044a9849be13df4cb2a30a091e0787d74452f. 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/DETX91500168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f10b832fd42a2615bf5f60c866f823c2c5b0af994baa8a2bf31ed849bb7cdd9. 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/DETX91500185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229baec6d47ff0a1f54fa051e4989012a329d956634193b8d1cc80def00711ee. 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/DELJ81345632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdf293aab1d733d92a78409672ed520f96d284a0e0ae261dd264ed3b90ccedb. 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/DEPI82021639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c602ae1c6bef34f021ab99c7da09dc2ad6862a69c9b8706b09d920b75ec04f. 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/DEMN91300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2190721c314cf93b87179e59dc779620882a028c7de7761f9ec019a9d96db103. 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/DEST11500091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2798f91ba009a33fcb50061af0bec32db395571e939bd001d97e38a2c99fcbe9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUM71724889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6c3311a3d99b7eac8ed534f9cb170ba58b82331e83613dc6e990e14e806528. 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/DELJ81458327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0319c68efc9b6554fa217497601c0cab9fe8059988328e72e9ba5967b8e6c8ca. 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/DEZ901700910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c65e0215467977ab4062b72685195440cd458e66577408bdea87cc13b03fa1. 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/DELJ82017751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92ca66294c3b312d1d6f16a438973ffdbb14d814e501f476645df916fb575ad. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEWE32000140.