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 0x2455945087422d4a3d8a9440cf9593611aee91346baa1fdac8e980d545c2a1d8. 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/0517597b-20ba-4834-b2d2-6d10fc3af8f1.json and https://artists.proofprofile.net/proofs/artist/0517597b-20ba-4834-b2d2-6d10fc3af8f1.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 0x3303f43c4683a06b21f22bf4ef7991db1519851207f71ee71ca31ad96c5d596b. 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/QMDA62293041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a7d2b88c255204644cbd2870e5b84bce3fc4fb594e0db7c042db3f349eca3f. 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/US7VG1700065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cf3e05c065dac5158182bde4673faee5889445133dc7340e2d5bb9e204399f. 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/ARF112300240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf6e87742e40b55372c58cbb7f678e0ce9939c1a393addaabe86c9d64269d23. 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/UYY112400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe550a7ab3b672fb4086da1d1344ecb7bbac8185d1e9d32df24fcd452d3f085bf. 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/UYY112400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0442584300ea42383083d2ba3fde6f05f041d12e8f88a4edd2d5ef7332e38b18. 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/UYY112400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d004debb5f23a38574c692a02743ffa426277bd141890f0e1c6e545db0cd4bf. 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/UYY112400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244554c69753aee249c9c80c76d55dddd06dd6a4f3ae916e294d1b9d3226615d. 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/UYY112300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5dedad7ee98ebc6c2a07346e864ceb9f70a75be1c08fac342be6f22c932b99a. 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/UYY112400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a42eed5aadbda23285ec7b31883458b575cd30db44e1e5c0fcf40593ffd759. 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/UYY112400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6450792c137cea46df608fed99fb203930d9d8ebd359ef3fb6bf9d334a5372e. 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/UYY112400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990e6d84a77a71bfec8a408ba1f8de13852828f555c3439975ce6b71c3bf8d79. 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/UYY112400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8c829e37cd9dbc8ed30de7b12a231cbdd8efca561601d25160bd7e346481b3. 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/UYY112500016.
FANTASIA ts10 (Ygnacyo remix) (feat. SIMONA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d3a3542335906254f521ce7409f906fb1c08fa474e1392739e2d14c7a4ff44. 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/UYY112500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736020d81bccbfd170244121381172d7b1908646173df306be5017c4a48fa8c1. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:34:24Z), 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/UYY112500018.
halloWEED :( (Stridah, Zé Pequeña remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749a4e3f6af9019bd28e61723f903703d38eba6e0ac6efc96cefcf7ead4f4bf8. 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/UYY112500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d06275fdce80422678f824dd424b9ace1c46565ee7ee17460e250201fde5980. 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/UYY112500017.