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 0x462f3bf10d1b521753aa74d0efd098dbcca34826e82522d114809cee92dca9f1. 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/9ed6271a-0a0f-4ff6-b1cb-c93b04f2f9fe.json and https://artists.proofprofile.net/proofs/artist/9ed6271a-0a0f-4ff6-b1cb-c93b04f2f9fe.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 0x6493ed426cf5f073c3eefd50439cbf4519af2eabc1b447e0dda964294529cc93. 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/GBSMU3826545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93c2b6e2f911aab4a0c44725a53b8b99ee0b80184c490ee7fbc5b7bfd9aebf4. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBSMU3826546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676d4fba9009cc2aaa2b0a20ea7402c4aff53e546201558d04c27232caed6475. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:57:08Z), 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/GBSMU3826547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989c01820362abf2edba82a7420e6ad3fa8d2c011f4d3c41193a5867c8057102. 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/QZDA61921435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2c9039d564b81e05aff0036df740eca96e559715cf60344a4a79ff4fcae8db. 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/QZDA61921437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f8219daa6b7293845d77fe4a8e18604346f281d6f35c82c1703de513e67990. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:10:36Z), 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/QZK6N1924591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026a38d2d903f15918f78b8252ba6040b17f1c65a84796e7b2568a1f497b61e9. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZHN42022207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aeb70f235cc34e69f1a33f134bf35c46a22b59e51aa2f7f8b7dd7bb5a0f90da. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZHN42022208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b5bd27f62d30b50afa0da1b9356ca51c780892e59b382500d442c671234a0f. 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/QZHN42022210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0235ac7e8026f97fb3138668446dc169a50a1feea390e04eb375fbe5ffc7780c. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZHN42022215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2eb95a672fb180bcfe214a7c0dd91154207bf1701a89c7f176055382df467d2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZDA82167419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7252d3d168f657e1bcf422925fe0923f9bb0534db28c5d3528896c3d5fcaa6ee. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZDA82167420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bba024308d9e8c25e98166a4fc91748f07e6aeca587a9f936b3b22d7171d1a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZDA82167421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9326b2eb737aee6a3497a130b80046c389f5d7bad5e47912fbf94348dc17b9e5. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZDA82167422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cf1b06a3cafae6fa483905b7e632596e409cee66326a3a43ccd2fd95c4be60. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:18:39Z), 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/QZDA82167423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fb9c37f9e8572666413ad858f9050911cf2faaf470cae7cc068cb7c2d641cc. 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/QZDA82167426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91c30b426a29709f631bbfced9451f99683b3bd1a4e019fe6bfbce813efdb19. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZDA82167428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a76840070e3d30749bedf491a714eb3185f9f57b3869fc3bed8baa2a0f0f77b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNWR2108331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29e478c9739199df6d5b10aca7556d6b3056019a82e49530567f8a182c21d21. 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/QZNWR2108337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadefb8f62b8d0e50013e4fa12f6b60245a60668b9d1189f275268df7b8855f2d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZDA62231649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abc142d942f3fa3fe1f7d897466fe5e6a6bf03dddf1ccac259acfb823f6db9d. 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/QZDA62231652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759a64cbf5b35c428ce1f6486e364362d8499a900ec6d3c4ed8d4556e63dd5a5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZDA62231653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bd14da65d17ea37aa32881a393231454047e547d4c718ecd4b4937cf1ebd35. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZNWZ2203670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fff30acd3703354b3e86dd76fd070fb614f7317e04e9f81bf1919ca64b01086. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZPLR2285516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6daf205efd00b03a3b7f867543405c16b46287736dff746e86971d8783b1ee. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZPLR2285519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9cfac77715952e29bb4f2be0cd250e080632f48b638409b88e4cc6a3d630af. 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/QZTB52224164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b172c8c49aae64d7221a1b78c9826c0772246d87be19317b2fe7bdaf32f7567. 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/QZNWV2325896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f36382d97daae3bdce4218fd242646849a52ddf6d508ebce0829736a1f0114. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:28:41Z), 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/QZNWV2325900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d6fb26ffa450de63bf3cafda21d097f85af6f649181ade60c14e5fc6d905aa. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:21:43Z), 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/QZNWV2325901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf596b71ff68e043c5325d3a33a6ba2d67a8607c8d06739a10cef261df3403c. 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/QZNWV2325902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70b44da4f62b0b4f69391b219e4f939bd259b4b3a31f92ef78312a54b4e559e. 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/QZNWV2325903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5419cb3581e65f12cd019179c3628b6158c7260b490a0bcf325568d8d946d5. 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/QZHNC2356453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c579c20138a58094fea2ccf91a243ad7a89d6075e04660c85e5ec01c943a399. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZNWV2325904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc26d06365c4821c262622fd21406daf9368b82b4b6fa846be6c0bb7f920fca0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZTBE2330541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243e0bf7c6594a09b24346bf12217f65f8a65d34a355444f433b7cc41ccb2479. 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/QZTBE2330542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa477382101f12f949e0fb467306b12fa428c5bd5bb0ed8f46299d15f3804d036. 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/QZTB82395928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3b2ca7c6dfb7e1c7b396d322760fa0f488adadc4600dee4867b4f1306c5cc8. 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/QZTBE2330543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604b3db3a7e9bc18606382e0b5b10b46c87140fc31bc3f090efe9a04e6a5c545. 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/QZES52480310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42413fc6eace7d96b4917db7d990977aa6a6a37d9bd33bb95db537e40453576b. 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/QZES52480311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e8a2207d16975b5aa33a01c27a18d56fc61104c1c0b0f27981aa7c4a94612d. 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/QZES52480312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf538a5f9fbbb7e93c9f53b93aed1c7723ec34e862e744a983ee7f22a38ff2d03. 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/QZES52480313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27df5126719b4b968689ec84bfbd946369c45a883ad1715cab276179740fa2ba. 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/QZES52480314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3826ece3da2939720fefbca38afd84885e34eadc5539608b31ccdf9ccc57f081. 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/QZES52480315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb2fb1b768cbea10119b51b2f5de0356471afb4911ad08edc15254579d77797. 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/QZES52480316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19f378da39f76bb027033c0d57cc12808b14b67deeb493a1773801436a652eb. 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/QZES52480317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69fe80a9ab7952c8fc5e7d041b555ed71c4a14f9d4e8aa9ed0913850117a169. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZES52480318.
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 0x7321f67f3c4d7eb0ad7eaa2e411116296833f077e1035604ecdc83d880e4784d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZDA81926224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3454681333a32e319c6b1cba2c67bf84df362e4f7cf5ed548d39de3dde790db. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:39:46Z), 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/QZFYZ1928601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e15c1883e603606d8b2c9d5b07605466e3e207709d1a01dc5a922406ad1af3. 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/QZES82019328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3edf65ceb67673e5e1e29edb6ae963165331301f5af9d96d3a4baf8cad4030. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZDA81925270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8b1d5fc9100bc697e433691d13c8ee15b6c210d22a0523fc4d31b48ec937fe. 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/QZHNB2478365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8241e9ad0182406da3bdea7b4c2ad120e87a763c5e66fa7868ad6ef0c80622a. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:05:45Z), 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/QZHNB2478367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb619b0fc922a8fab231d7e0233d472d1fd3fa9efcb5418c26b2fabec0a280ee3. 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/QZHNB2478368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a29aeaa6507c3951493bad55e89bd7108993064dec057556cab934aa2506f58. 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/QZHNB2478369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24604f8d94daf3b09763afb639f6256e303ff48cf10d9aeaa04651b8d042f13c. 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/QZDA81926077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afa3f562e7b66bf29f546e69023b95b08054b1f353262aa344b9a8ce96f1246. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:47:05Z), 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/QZFYZ1927895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb47765cf3127d91261de35dcabf681f124c3282352c53688ca00336e29105c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6H2492643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c83ac17786632b61d1aebc18327d1d73c2e2a350e027df541869b82e0341be0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNWQ2444832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a055179c1e0ddd27f8e1c5b4527a4107383686ef000ac0d8d803e7a21c1191. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:37:51Z), 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/QZTBC2401808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1145b7017ba1235dd765d5fd0b914dbb46ffd4f77a5c6a1c9da67dab142a868. 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/QZNWX2355326.