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 0xb9bab8e8f201694e99cc72bb5bd51a2983e948007e4a5bfe7c054b40a0616205. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3cd553f4-3fe8-4062-9389-985108a5932e.json and https://artists.proofprofile.net/proofs/artist/3cd553f4-3fe8-4062-9389-985108a5932e.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 0x3537924997d19024c88c3469dd310c0e63eb85e5bbf5cf471e82a2ad522a7f81. 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/CH6542179126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224820439f149b37c5904790a3e9ee9ae0c448417aa3b8a9c3b7d0e8a724a036. 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/FR9W12028156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a89a99357404e169130c43286219c9ab2f3743d11dccb5a6d9bb42b47287c1. 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/FR9W12028157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff402081e4f5140015096eced0b1077c7e4e2d8f686a29a22eead61afe92e90a. 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/FR9W12028158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630b86f0332719e8b149b886e6a43de8389ec7c935793badb5a580a0be6179c7. 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/FR9W12028159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb977dd7706c9a289592fc82cb5db43a65de873de535e4f4b6f3da639b7da89b1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR9W12028161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb9b72bd186fee7cb53b81fa18312bba4963d5f96c22b6e2532379cdc52cfbb. 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/FR9W12028162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ff3c7aba0a440f4d96cbf7a5aaf31279d184eb48bbaf6af9bb5be34feb3bad. 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/FR9W12028164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a1c8e880992bc0454f6365ae7b21757a8cec67550c220c604cac9f778e4e3e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR9W12028160.
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 0x6686506cdeb78c2f9dbceb04fead601c6036889631064d84cbfd71d5e083a3e0. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR9W12028163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed83198781f3215dd26158faaec7e9554e8f96b5f77b4edb5de3a08bc676fa8d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FR9W12028165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779616dcba543b62008313a1d8cb7d70024942c47d0432d45f7ee8d2005423e8. 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/FRX201767755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77edce622889045af0e12bedad90ea52e4d748ac6a6b9b7e9b4c2c480ca5adad. 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/FRX201767756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15fda4d14221cc8195b737cfe473269a95903f471a1610a26a1747b27d4d3de. 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/FRX201767757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d26fcad9a889f5d6f047c61146b11fbd32adc719c359a5059e8624b2e28691c. 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/FRX201767758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee38638fad988857aa6e8825cb4d2c2fb5dc34ad12b5c34e9f5cddd7ea82517f. 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/FRX201767759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b31b9d8860804c349aea61602432b2dff27f687ec8a4d71346c14eea9a657c5. 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/FRX201767760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b9eec766321eacdde4064c181f31cd6d4a129af761319db162fb9215a75b94. 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/FRX201767763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d4c73f7a4e5e10ec9017edd8242d036bd3063fda2c862aa023a617f57e9b44. 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/FRX201767761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1bcca25edc3558ecb583299bf59784cde6a7d028440e1594820cda7037fb6e. 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/FRX201767762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7aa31d52f2b241392001da411f5a437f2f4bd9a23428c0ea154272070a7fca4. 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/FR10S1806808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ea3ef842eca452b99ba37ee92f35d527ac5983f0837a2697aa15d66a186cd1. 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/FR97Q1528906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbe06721ebbdc0fbef77ccbaeff321ec02bed847dbf61739e7b4a8324b30f68. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/FR97Q1528901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd122447cf3cce207c3a2072628a1eedcde2d147553c52e88ad0808ede293dc60. 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/FR97Q1528902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f8a4ae474d2d3205805cde35de86e46a6afff44ff395d33716ebbc3d3ebc41. 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/FR97Q1528903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddaa3a75698bb7f7d18df9287d70ef4b701007d5039ec20d2228d2473e93c0d8. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FR97Q1528904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9f7bc8ed5fdf969c6b10b70c0252ff6f53ccda04039145d3f3e2854ceb5013. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/FR97Q1528905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18d71fd130e212a7b975ddd1f3e5efccddc547704d9d147b649c1b51978d649. 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/FR9W12426033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9df756669c7fc570068093372dfdca37ced74562d866a1543ffdeba348237bf. 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/FR9W12253171.
Descends - Yuksek Tropicinstrumental Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac5740f52e071eb00d92d8c89fc099ec10fe2ad1bf15dbcd253b639f5b0da83. 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/FR9W11714203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5828f0b7883ca3f33ec1678b3096988820bb46c9e136cb06177942959853d29. 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/FR9W11714202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44179048da4b5ef46f91d5976d2538aca696ec45e8ce738e16227d21a102bcab. 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/FR9W11606686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612a4f3f1bc828bce77cf0625d12ee9c07d0dbb324620588acc195c0a0a543c3. 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/FR9W11606687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f165397181d29abe6d19b7c8a1712d313a4b8d11fdc2a40d48eb00cba45c7d9. 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/FR9W11310512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0843c1e215ade1169210f6e282324ac2600879fae60f215a7d8229d823ec3e. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/FR9W11310511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dae14c58460429f3beb97f026affc7de2a7161c455b66098debd5d95d34feab. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/FR9W11310513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592bca242042b2de2b6b482749cf57ffc233bb7e13b94ddb403a4954cd134a43. 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/FR6V81477424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bd14a4bd1f87a74319784fe9e0bb5ab5168e617dd663d7ef0926f62fd1cc2f. 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/FR6V81477427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178067505042385415a00a74f4ac99945ce3f70f61cd0c65b884e0630638f497. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/FR6V81477426.