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 0x4271abdb464f49f66732b11eb5a68a62372cbc38d138014d68dd290e8db5485a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7cafaca-e9a8-4c81-b9e8-66b07bf8da32.json and https://artists.proofprofile.net/proofs/artist/b7cafaca-e9a8-4c81-b9e8-66b07bf8da32.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 0xcfc974f65de5ff1890a30729ad2f68117942c87c8a7979de92051b7ed8c7522a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DES231900161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3504234670c9b55b208a0389f4b0c800df91142fe22f1eae147edc7f6523b1. 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/DES232100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f003152e02243628061fe6b40c2e735ed1f2e1ba2203796032e662fb6a90b5. 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/DES232300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc35b6cd0b3c6620837dd805830805fc68e5fd9e21a1ed4e524e112bdfffdef. 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/DES232300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e075aa640a67760f50ca9728905730d3e81861fbc0d5bd87c628da694c51d9c. 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/DES232300381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0c13b940d22a2690185adaf7ede5301b1284939ea8e7d6f8d3c02ec1a5508f. 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/GBKQU2395648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d9d72e750371748d2a93c7e2466def025be1f19f4690a1728752ad1fa56d0c. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:27:50Z), 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/GBCPZ2423735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e9b9f93beef1b841d94125739adb41e9615ebd82ace4d095473726e386e5ce. 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/USAT22312487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd68afd2b4a57b909617521d3501dcc0f9788e723ff38bb3abb43003dc099aa. 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/GB7TP1700093.
Bestie (feat. Yxng Bane) - T. Matthias Remix
Bestie (feat. Yxng Bane) [T. Matthias Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5143beef68d94e1bc1a044f643c217b9d5f61f677ba3d631bb62e9aa7dad86a. 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/GBARL1701892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631e2fc242074fc4657180e509be67e6446282642678fa6041c8f8d886139e9d. 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/GBARL1900353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5894a58af77c59a803aa9a2a78fe8638e5d38457e950419ee3c21cfc032d2a36. 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/GBAHS2100831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b5ce59d4e612c85e110f2d28c6f07a6f384d053b87c697b951780344e93871. 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/QZ9ND2305260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369b7a32159c3b85d229d2981f569ec5f30694f6d3496b4bd0ffe3166375c7b2. 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/QZ9ND2305261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5894a58af77c59a803aa9a2a78fe8638e5d38457e950419ee3c21cfc032d2a36. 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/GBAHS2100831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5894a58af77c59a803aa9a2a78fe8638e5d38457e950419ee3c21cfc032d2a36. 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/GBAHS2100831.