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 0x6d70db9637bc8134e85071056a93dcbf2276646fe41b42babcc7f997030aa52c. 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/e3ffe990-5713-4efa-9a96-5722aa1eaf26.json and https://artists.proofprofile.net/proofs/artist/e3ffe990-5713-4efa-9a96-5722aa1eaf26.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 0x114879135e3cb783d61c342c16c372c094a8c631d025c660bf5fb381e1f2b42e. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/GBSJN1300642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6b2ff5b938c98bdfaeaa7b7d7bcdef95e3591ee43504f0b0a6888c74585903. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/GBBHF1310495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb376a9ad278c3a66073dd965a0153c43c3c9e448f6c55d4224841ff6816ea2. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBBHF1310499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692c61b9ef6838a409a34b118aba2db9d43dec53c45ea3958900c2799dc4fe23. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GBBHF1310556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa99ad8d5596f91d62235a69011d20e0b95e831458dff7958661dfd14f69486. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:10:20Z), 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/NLCK41073121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0932fd9821c8bb90409fa7c9e4a7910fa29aee21c7215c3eaaa0623e3f5cbd22. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBBHF1310744.
Tommy's Theme (The Caracal Project & Grey Code's Tank Engine Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb28c1a083e804dfe271bf9110c53739b1639eb99fdabd484a0cd0bd26f3927c. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/GBBHF1310732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf201eb5a2a7b8b48ca74f52b00a2d5945dc8d9cb74e4f044092311a2814f1f34. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBBHF1310719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bc0dfefcc1f2cc0a1d9c2cebc80acdc8b02f0fa34018dba3ffa51d2e6ab838. 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/GBBHF1310923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7942a4fa6d173db2170a76bfc7655f3765cd514c93772c17c041bc34839faa24. 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/GBCJY2300517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4efdbaa887ee54b02918571bf5f8d44ab5f70b8f16ba45920604767a4598d3. 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/GBAAP2200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584e7342bfef6868386957db8ea27f3e70880f6de9b1919de6a6af32ee574072. 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/FRIDO2011455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9c9f8d95529ef5f5ea523dde8c797cde462ed1f378d786578003c556de7478. 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/GB8KE1950336.
Tommy's Theme - The Caracal Project & Grey Code's Tank Engine Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e82d0ef465d8ec39458cc70de751e91a5963203d76b891b06a2413bbd8f3eb. 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/UKACT2133029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7468c9b3c8b8160d8ae51166d5fe077479f0a9715fd60ae82613c40cffdcb6. 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/CAUM82300164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd584ed2e14e72d3991042cb8c4f51a3cac6ea4cfed1f7cee2e664787489d1e. 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/CA5KR2429379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd584ed2e14e72d3991042cb8c4f51a3cac6ea4cfed1f7cee2e664787489d1e. 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/CA5KR2429379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab790ea4dba2459687ccfc12d1fc05a111adc58485314b98f85400c211d9b27. 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/UKFTL1600117.
fabric Presents Laurent Garnier: Into The Low-end (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57da40d644e19a6b04dae37851bd2d24f630998bb0ce524e18af7834690f0c0d. 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/GBEXH2402089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399ba2a23673837617f8e28db75ffcc9f2a3e4aae572a9434ed92c0017525016. 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/GBBHF1310600.
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 0x083081552ea47e2a6a5289597e6ad83471be199a2ce875bd1c12285f46825cfd. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLCK41036261.