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 0xee186fff543852cb2a4b2614ebdc2043c45260b09a8cc60f1d207d18ad3685da. 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/afb44322-a818-4704-9c2f-bd197493cd57.json and https://artists.proofprofile.net/proofs/artist/afb44322-a818-4704-9c2f-bd197493cd57.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0xc9cbed5f8842fd8c01f6c1f7745bcf9c721837fb8da03dc28b29ccfc773a292c. 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/DEB581800389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262e12ccfd11f40be08e76b1a1a2c1b74433f48c77f2955d3c77f93a61a702f6. 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/DEB581800390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b643904a1158cd1a061d3ed126db275cebb7a7cb4c09fa86e79494a354aa143. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB581800391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79942f48a3138d203e146c731c36c2b6c5d49e8eb3526ac9ead7d872fa8fa380. 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/DEB581800392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60758cb64f4461c0e7e57fa6f7bffdbdd7057b39ceb3f3a05ac82a730c18a6a6. 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/DEB581800393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21c564f58ad0beb95399f7dc482adcbe52511ac10a8fde00c7897e8dfa686d9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB581800394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed14cb433833d7d13a326a10866656155eb1d3152908fcd8b4c23273baf4079. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB581800395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe692d2f245e726789a54637e6a766c1f1b408557f443b0722fd1ad1b54b3e684. 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/DEB581800396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b333655d693437dcd7c7845dfef7640749800e872fc2b7a05ec69c6d13bf77. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB581800397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5be02005c69fe08a81519bb14f63f8c9919ab12b3568192711477f0f5785115. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEB581800398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88da6572b2107cb266ed0afd05c52871aa79e4df69ef2b502ce3f9cd31b1df91. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEB581800399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c301ad90c1d7750fb72b48a0990917fb7aaa0b4bda99cc2c59b50e48fae0793. 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/DEB581800400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7a94c2808a70552f0262569efa9ae11a090670f18dadc2bff33bd691dad2f8. 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/DEB581800401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcefea1fa1e224d7b19e16b21277d8f0b867079ef6166e2c841180d9515a0da. 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/DEB581800402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda76c0db7018ef8d6369021e21bb7555ee6d20c9e60b9e21aa34151bb9bb78a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB581800403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b77d4884461d547c2df9313e082c6ceae5933a7cae9899f9b9a1b2581f0ff3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB581800404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64f43ca615f410b0b142c3fc70797856d82b0410f2d3e47899421025fc35317. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEB581800405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f7555f4a5f070f6e71bdbb789170aeaf5a140b96f0532af9ac60cd9f309eef. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEB581800406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b306227462ae42003d6080b9c30922a1b1ddc9c7e2ad21c9e0898860216ea15. 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/DEB581800407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84a9a98ae723cfff847e08cc0dc81acce6c78042e93d722630b3f506febac8b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB581800409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe260f6f604e9f075288ad32ce674af5f800532e71ab44817edc21acfed30e36. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB581800410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa505f7405c57ba6a46ce439bf80559ab6dd6c3b576f2164bdc6f39f66e1c9a41. 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/DEB581800411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce22d8d4933df559801dcf3f7267e331f7ce2d5c0e64b71c3f55d18999191e8c. 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/DEWS51800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb81cf5b62c4e2380e609df70371cf601c9b7d28a0a5bfa056db12d27125137. 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/DEWS51800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bfee8978991a352465fa147a768cf6120c4599d480f777e7ed6ed2e1f58327. 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/DEWS51800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec1544abdfd843c1cdd0a1eb5662d841cc59c2d1ce7a236ff3cb9d6eb51bb56. 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/DEWS51800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a0dbb21a5ef7a9febdcef5204adf76abc459572054d771c7358bb46c629265. 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/DEWS51800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2a0933a8bf6aa6bcb84606d4cbd4cbac106c1372c93a06b00e486e3470c901. 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/DEWS51800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc280613407a68936d88dbf68ee6bae18d7b1b4b30bce45dcaadbf59082e063. 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/DEWS51800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792c4e6af6e2ea2a5f73f52588fe6c35e6ac7320dc3bfd0e9050bfc9ff30092d. 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/DEWS51800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7c10a44565b0ef4a45728fe297e9b1b26d7da8784649dffa1809af00236e12. 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/DEWS51800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe838d50261d19e0ea1d118a1298b33d7e5b0c357360bfe6de85586c582a1106c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEWS51800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537fafca425bc4c0633d46c7f0223a99cb2aa5eea9646b36ffdf5987ae48b963. 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/DEWS51800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b02af31935c843f90a2283505aca7dc83658dc51a86711ef7c17f3c7b92c77c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEWS51800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded2d221d9f4113f584e858502fbe5a97d4643e5cdc1a1dce85eea36d3d15b31. 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/DEWS51800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd8b4128b3c6e402aa1adcd3fb31bd343c4b4085ec3dcc94ae6ab88b6a9d77a. 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/DEWS51800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb51a2b69c61197865bf7adaa3c0c8e208c72e9e1403561873b5b490e47b613d. 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/DEWS51800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52db7ad0c8c995cec636a67e3c33dddfd62f2cae149e18ef8a4deb659af6e78. 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/DEWS51800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefee9b59d05499227ed22af6d98abc05410df60f68d85caa490ee9df1de00afa. 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/FR59R1994806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec1544abdfd843c1cdd0a1eb5662d841cc59c2d1ce7a236ff3cb9d6eb51bb56. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/DEWS51800001.