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 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 0x4488a48bf4c13af561a628dc4046bf2aa2db461c50148ef5a539dac12c94044c. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2be97b9-bc38-4265-a04d-3f799f7495e3.json and https://artists.proofprofile.net/proofs/artist/f2be97b9-bc38-4265-a04d-3f799f7495e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Desde la Tierra del Mercurio: El Trio Amanecer
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 0xaaacfea935d268e784dd8551fb40c3b8b3c750ca4323906a41914258d87eca88. 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/US7VG2574140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663b7ad11d3bbc7c606ba6474580d0e6910ffed63377caf42f5554034b5fb7a4. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/US7VG2574141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f1984bbecb8f9487dfbfd9ea824e7873b15ebc3e2e5319676b5dec9ed1b509. 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/US7VG2574142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42ab341b1cac4e218afb2316619656012f4978ba13b10f0199d9aa70d86869f. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/US7VG2574143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b1caaac443341b57a6f667f374304600c4e82c32ceb0f8a62b823aaee617ce. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/US7VG2574144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78418f5139f7f2e555bae4213bc63e7b66ed573d020ce5b6bfbb9ffedf638b71. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/US7VG2574145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecd5b9ad9db7a9c3739dcf4d65c1af63571121ed993c61b25b6b1b045e9f168. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/US7VG2574148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b47cb50bf8ee1e3d7a09b267de4468f8f2bc142a718ac0cc37d6cd424983284. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/US7VG2574149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1048ed7d86dd2cc00c9fe70898290a8045b148e87fe3edb4588bf79500395f. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/US7VG2574150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf2991a6b97924dd1d1c3779cbd610e36f4dc4f8c1344ed1a444d79f32b2b6c. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/US7VG2574152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a587975df5a87cd6ab6465c0955f6b6398cbe91b3099eb85f684756c3dea1ff. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/US7VG2574154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d58a0713bb4f9cf7d076df8bd11cd8421c545e0a0ea444c8ba8c2fba27d6d60. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/US7VG2574155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94f620d40af6535055cf76062d5327e6e4df68158339266a5dabd4b8a32bde9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US7VG2574156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948615bdea773b798eb92f94b7ede042c009681b6c26de20199bfa6ec3f75d38. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/US7VG2574158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f520ac28a09358811dbecd02a78aa2ad9e576aacc7cdd90a395430d52183c6. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/US7VG2574160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044f72e5a6fdbffdecf2e301d496c261285f2156bc020e0e4ebde721b6e1f3a1. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/US7VG2574951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe612d76a733c3c057e61aabd96caa65d9e85d2e2aa0bc3b555ca1234844f91b. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/US7VG2574952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbceae1474281e105abb1b500903eff649aa130fa5e55b8150576051e40c251. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/US7VG2574953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1358ef57c3a1650243cae0b1fe8f99c6217527a2822cb8a267c1b94826c5bbe2. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/US7VG2574954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7c215820d1b8b425715fcba591f85a2f86af0bea09f61b4305e6ec6b4e1f4a. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/US7VG2574956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62977c03498f2a84920c5b8dc529dc81db8df9f8862609c43f39529c9427133b. 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/US7VG2574957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4777cb1d967e71f652765626e7a05ec9d23d97cd1068c0e98e392622485a042a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US7VG2574958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6056cb7d8b0421b6b05d47e31a7df86d4d05d19d740b754e135777525eea6047. 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/US7VG2574961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a304b5ca5d2857f61dd32c4ffd22b89affc140d44558976b3e9482d59950a35. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/US7VG2574964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eca0bc195ce8868c6de4cd39b25843caa35b3fbf62db010ce0a50efc82cfb10. 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/US7VG2574965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b214f033540724d3ebefa61448e5829bb09c8fecc72844359ab22aaf04aa740. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/US7VG2574966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90991cd40dff41e91ed8e72764e530782da36ee44f1e84dbfee8018c281c8b02. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/US7VG2574967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da3b41f83c2c3c114798c6e484ba6368699e588a329d566f90792d9bf4f562c. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/US7VG2574968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b1fc6d9c15242f091fc1bc4b79ffba341b8805b1d8e33227bc40e39c85aed5. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/US7VG2574970.