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 0xbbd65e5186d7511a2695106d960e2824e5113827ecf6e6f939e1edfd4e7fbc08. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/306576c4-787a-4d6c-bd4f-7f7f1bc10fb0.json and https://artists.proofprofile.net/proofs/artist/306576c4-787a-4d6c-bd4f-7f7f1bc10fb0.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 0x31bb34922c9c113be216efde7c396da941694f0a1fb6cdc3a90a448331873383. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBKQU1607650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503080cbb4cc69da1d79c4e595ca165b73c1b4465fc9abe59c938320fb9a3b81. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBKQU1607649.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfe0dc63b0b42acc57ed3764be5e2d153ab66c296dadd8f32a01316c906be63. 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/USQY51357302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b88c76cb0dc4ace435e18b710281d6dc5691c4ef2595bf156ca4c80246356c. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USQY51357303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c95745500361f8937678427375edc65f06e7dfb81d6ba46edf7010bd9e618c. 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/USQY51357306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184032be69cf94142b491d1f3750f0527f1cfeb1c4ffad6ef2abda81f3a67527. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USQY51357308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c25c5a51861c3192e7425a00db40ccaba6135b698e075c13c2f233ec16542ae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USQY51357310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bbef71f6af92053c798ce1f5384d4316ffc2d707802b2adc78432722a8e8c3. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USQY51357304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f5be76ad9354d47d04bb1e28a615679df7b91f8cd76cfdb765c502e299b05d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USQY51357305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c409a76343564c2e51b420082566abbc6d00af3b026736884966cf3bd1d77d. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USQY51357307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d03c11a04a11b5a1afef93c112bee660bf240270799d4fbf0fef81c8fd5c9e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USQY51357309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e4d43f031796ec0fb890ac9f911a640a7fefcc5be7c8094ad202a1a7d7e0a3. 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/IL4060802730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf731e03966f61812dca625187d797906376588b0bacca56e301b07dfdc9e05e7. 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/IL4060802732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682fd46a138f4121382518371c601b3ab4dca4f5506dff7ee885177dcc699d12. 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/IL4060802734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f921ca4d8b41b2e51ec3e4fd62509063a99cd547463c552e7a75ff652035601. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/IL4060802731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2e73eb56e68f9bf45bc4da54a6434e95ef0d7089e411e9ad146d570f678473. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/IL4060802733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058fc13c8e6b7e41907e5c97be18ee788c5f541c85f9ec20bc82c0e0d5cd4fba. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/IL4060802735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74f766cfc1235158d6349211101dd5104d52164abfcfe8810bf033ec3a6ee47. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/IL4060802738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a63626cc2b2f207f9e450fbcb02d50c5212c611f7f55d5e55dec5d717d3cbf. 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/USA2P0718550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54b2226d334401ded157960e2a5617b3394fbd0fc6fa0acf1be1968d9bff11e. 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/USA2P0718554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b09cc6fb62edb699a5dca3a851d40cda32c75fb9c2d0c3aef540d0ebff8587. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USA2P0718547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7da237501abdb3123294de5b34932c6c5f5f340274d3504be82e8d39483887. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USA2P0718548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46b512351476248847c40132ad8872770656ff9407c3818baaf9ef7db24a2b8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA2P0718549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864a1b183e14609190256c7729f7cb596f05453a779f7dc40174dc7a157e537a. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USA2P0718553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0839069cb94f322c9bb962e581e4f968cb68c6a8c7521f1f3ffc670c0c06926. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DGA052245703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e90999ebedae7cfb61c75935bf80784e48883e82b1223e4c093d387459f5e12. 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/USLZJ2289007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cd8b6346d277edce6f2cda49aca6962d7898b69053210604460c7fc166d848. 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/USQY51293080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb524e3c8a29b327764baa98d28bea365cab70f968e8b2be438aaaf4f4d370aa. 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/USQY51293081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36332755db49186f7e3aed94d9c1b1ecefbe040c690c5e8c3bf96f4f17adf58. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USQY51293082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8e7ef69492388468d7ecde3ccefcb4a8c899125f4fc2b197ecad7c27c67ab3. 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/USQY51290932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd565d0bbc035c7d97d3aacdd67365f326e94f0341e74d7be5cc5cb195ba89753. 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/USA2P1241911.
Voyage - Didrapest, Prospect Indra Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd72feeef0001341a48cb02714b1e9171f0d990a11383da857cfdde772b9a147. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USA2P1241906.