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 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 0xc464b602e43012f67e567ff2289cdd4fd1f3a627c265aec46d60df46a4623bcc. 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/176d122b-287f-45c4-b9e6-1a94bd463d0a.json and https://artists.proofprofile.net/proofs/artist/176d122b-287f-45c4-b9e6-1a94bd463d0a.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 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 0x380a3a785b1be7fc55992d2607974cd2515a16bc714397790cf438bd8a1601f5. 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/QZW9M2332528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c2e59bc2d0499956f3c3118d256276483c6e140bce3cff26292b893c97ea11. 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/QM4TX2348046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ff4af4490e6ced781e2666d78a565e62097ed11def32cfc4b0c3f140d6b702. 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/QMDA62454853.
Le Gustan Lo' Flaites (feat. El Joan, Agus Padilla, Julianno Sosa, Look DC & LAALODJ) - Remix
Le Gustan Lo' Flaites (feat. El Joan, Agus Padilla, Julianno Sosa, Look DC & LAALODJ) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538226184cbd0b2623ccb26349b31f7445db188e2d36f3cf4c585a752eb63d0f. 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/BK4DA2406759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96793b33727ef3384efbda22eba8e091daa3307c5c4d799346aa377fb5dec990. 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/QM4TX2494291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc04977299257133e27faf66622ffa638e9e46f40fc5cfe4dc7b970c1cc0c7e. 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/QM4TX2343355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdb98de520398256ce2453486fbaa1a9be11a61fdef23dbd0d50ba03e2226fb. 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/QZNJY2485285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843beaa91b797ea7fde2925ca5989d64b33c4f32b86e58dddcb79d24fc7b1b81. 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/QM6MZ2302926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ec983cbdc62a51db0e8b2f3955b2cd68b0cb63b2c5fbc9def76dfa16470a4d. 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/QZNWX2416035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa246fcba22018af8e65c92137086e0d312adfff84672e7036573bfc40a6edd64. 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/USA2P2457901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce232e99fac8f8db979ff2d006533c71706f7a70b81df52e4f8e5939305900f. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZWFN2323878.
Le Gustan Lo' Flaites (feat. ECKO, Agus Padilla, Julianno Sosa, Look DC & LAALODJ) - Remix
Le Gustan Lo' Flaites (feat. ECKO, Agus Padilla, Julianno Sosa, Look DC & LAALODJ) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcc5f121b8c492812bd959658e857be41616a4f296e8d755f3c8e0238b575d9. 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/BK4DA2405666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7944679e011ab563cd132b6cf2744bf9fbb7e1261829d5b2949448619d0171c0. 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/US7VG2563944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fde6c325fb31abf0cd4cf092387fe115dbd12a89bb1559886d9468647d9fe9b. 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/QZMZ92426023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fde6c325fb31abf0cd4cf092387fe115dbd12a89bb1559886d9468647d9fe9b. 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/QZMZ92426023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe6a40ad805a9456c747aa060d24eed8345dc8d1ec8c7aa3b00a66e64a13ee4. 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/QM4TX2349648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e88fe5444c50eada594e9dc69dc6cf97da7f024efdefae9f0e7b04c5b9c94d. 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/QZHN42531951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245707891115197360d6822eca2a61f5a37519f64092615c40c394262c932947. 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/QZDA42335146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c2e59bc2d0499956f3c3118d256276483c6e140bce3cff26292b893c97ea11. 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/QM4TX2348046.