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 0xa09bdf76c4c4078d6fcb4f8c2046619ca59d4415104748c70641309839302368. 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/42c150ea-4dd7-4217-be27-b85844e392a7.json and https://artists.proofprofile.net/proofs/artist/42c150ea-4dd7-4217-be27-b85844e392a7.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 0xa9adc9d0b8fcf0a868812d4289af8bc7e68babe89a15def1d36e3fa78d9e13fd. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:15:08Z), 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/GBKQU2204786.
Na Kryle - Volen Sentir & Izhevski Classic Retouch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb196065d789689134f56851ac02b563d6f1a436e2f742b7fb318ba6f308c2fd1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US83Z2233081.
All I've Got - Gorje Hewek & Izhevski Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8834f4713a2d28cc819b9a1742eabeb9a95439e444a67d87c735891551e3afee. 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/USRE11900324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90820247355e4d71af52ba105a735371042aabca68d6a382159e9d25996c469c. 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/GBEWA1908471.
Dimmed - Gorje Hewek & Izhevski Remix - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3840dc2961e0e7a317005f9f90a1be3dd89750b11707047c83cdab2df9a1883b. 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/GBEWA1803341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac743b384f2532d9e2bf0c991ff253ce648295456c8a24a10b861004853cb66. 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/GBEWA1803343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcb3f96cc8072fabffc918320207be534e2551cb85d58d2b8ed56ef5e50fa62. 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/FR85U2200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a1f598874f6d1c6bc95d008d23d948bece00d1ae8506740c4f497d6d337875. 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/UKSP42000139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f20279dc6e7833dd2557ccac782a6906a053d2e434b0aaffe04ce8e19ba4c0. 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/GBKQU2372149.
Morning U - Izhevski Ruvenzori Remix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972c52fae54994ffaa6af554922b5e12dc5ec57afd082733ed4684bb6567c3c5. 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/GBEWA1908293.
City Lights - Gorje Hewek & Izhevski Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fe54c18f9c8ea8d19ef5c57cf1299078de16e9dbc775f9591888edbd96bbab. 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/GBEWA1902310.
Over the Water - Tim Green & Izhevski Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf47f8fe78fd8d71738c72a0cf04d38461906722e84d16d9178d83ecbc99602. 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/QMFMF2112792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b92f595849a6ef7d85d14a8b374007b4a3cb166e1884089c239887dcad265a. 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/UKSP41900159.
Morning U - Izhevski Ruvenzori Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e27d5da9ff17955e685b7e12da8226a6ad4d4da20db7e06404f05aa171ec8b. 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/GBEWA1908480.
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
Na Kryle - Volen Sentir & Izhevski Retouch - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40813b705fddd3280ca124179e3cfb3a9700406ff32a0da8555baf899609fb6d. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/US83Z2233080.
City Lights - Gorje Hewek & Izhevski Remix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfb08159d2e219dee638d2818f66a1c6efcc023c84eb90df31b716c8b3bd3ea. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GBEWA1908305.