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 0x720f5c18ad25c5e69bc9fe7f31d5792a9157010e6b5bb67f5a5774a574f91b8f. 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/dbfff07a-2a4a-4c36-a7e4-0553009e3cf0.json and https://artists.proofprofile.net/proofs/artist/dbfff07a-2a4a-4c36-a7e4-0553009e3cf0.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 0x5c47168bf874b2d14053cc1b672c1bbb71791ba8657f192641d7659e955072a6. 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/TCADG1788777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b7f7c311ca5103e11b9f29a7f3c1421163883fab24979b3724d07288986d6d. 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/TCADG1788783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d9f18b3e37dd5d08b207a0d3abc9ec0f94235c53b985cded910d5268156c35. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/TCADG1788794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b0a8ad131a450bf0f79600cf1f2c2aa2d481e3eb572e7232cf23a7eef5550f. 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/RUAGV2304137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1200277b8d881ded69bc0ca80d55b10fd8d081f0a3870be778262c3c9bbfd1af. 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/TCADG1788867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd133cdf32d42ec2c216391918f52997b1fc3a58047480b4d9fe0213c7535589. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/AEA0Q1843477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91beea7264c5076f6163374638592a0966ac6442c7a921180b872214c71ba90c. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/AEA0Q1847341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ef8b47fcdb73f9bfc6f389610593e6455424a9b95e8c768d4395c8264a47c3. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/AEA0Q1861102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe438301b2aa8a395dc80c7a8a97cab5042517b992125fde7cb099cf93aafa6. 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/GBKPL1827710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc06505f05d8ce701a4d3c76a66a9c5fb1efaa96e0a5e43ff765c1328e72b3d. 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/GBKPL1827711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103a1bf9109b12337089e2695444fa972d765d87394f7233a2052ec9ae11843a. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/GBKPL1827712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf231aa486d00cbd2774661a6a6b3fe6b472e5d926104b27a8612b8dd121b47d9. 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/GBKPL1827715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf838376f279e1d242e035239a6d7bae43b9fbbb828078fa96ae4416e35900394. 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/GBKPL1827721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994b1bd09d3a6d1fba49b5492d64717e2169b7b52af3e83f2d302379b84603eb. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/GBKPL1827720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e27be8b4af49216e2d8218c9c2129a17082126c31f7c3f5267579e43dd62adf. 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/GBKPL1827706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7ebfbcc02e091107cff7a3b9da5aac4e9cd9b884197beca7b64a508d6f05cb. 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/TCACX1782511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa578908d5bc923d12c4d197df86adca0aa8b045326cc039fbb3bdf25e9ac8d71. 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/TCACX1782514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf182c9583c946d6055e11cbb11f076d098eacc50bf5f019ac75436ebde655737. 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/QMBZ91903287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee648a4b7d792bbad7694f58a6570b78d2e333f3e7a83c745098c54c0fdff010. 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/QMFME1971284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d234f29c7708e4ef5cf807045b709b1ba58da78df913bcda2d297f26becbef1. 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/RUUM72000849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf56842e43b514f39628ce939e01d202ecf15a9f8a54f8ce0b6dc6a300bc0f8. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/RUUM72000852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69e48512c8f9ff317ba8e57b7590f7a19049e7fcc960b79c91764e3aeabf16f. 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/RUUM72000854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1fe27f3fa23ae8b2ca88ed7c5a3f8641fdefff88f9a8c37df7862cefa26f50. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/RUUM72100119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53966b4112c8bac995ceecb64a88ca155ed61f6fb1763b279491608a27c5ee25. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:53:57Z), 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/RUUM72100122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbe2c9aba7463b8ea6f8b24bc759fd63ec52d847c52f490cf5e7448831d54e4. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:03:51Z), 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/RUUM72100129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf1785f7f9fdb57b19d65fbdcfd380bcc1a6a617b177eda299b54a89f9f079e. 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/RUUM72100919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3975fa1a4f896453694d9246a99988cd1924da70235607125c1eee00415a22. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/RUA1D2228182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75879d036aa0b9aab84da423d6c7b1dec96ad9dd36d7d17c30c812d703e419d3. 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/RUA1D2289756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe55ae5b5c710e5fb423c7f907707168a850434c3529239e7fc61676b0611f3. 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/DGA082355958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb703f3e65265bcdac02491adaf592f5c81b17d8e7d2f8aab7de8d16b868e9df. 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/DGA082355962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed702bf2519120309a64d68dd2a44ccfc7622a075e602e57c26b5a0b90538f50. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:39:56Z), 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/DGA082355964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008ba2e92b44847861623e1117f5d713dec0f589533deebb068476c3af6f1c99. 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/DGA082355965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc01b0a6cc4d431906444ad9ea3a107f91e06f959cae7b9c087be8d3b018ed83. 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/FR2X42423198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f368025c2ed0bc437ce31b4986b7ff062606610ef567181bc0e6ae941221bf. 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/FR96X2434050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ba164d76f501a62ba3ea96c4d11834bea8af9bfdcec759f8785342b06377ea. 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/RUA1D2510195.