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 0xcfb822db9b2ce8358df9118b641933eeb638c846d45412a36e18a49cc3fd6660. 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/f2ba1c40-9dbd-4b28-bde9-99d7a3e9f663.json and https://artists.proofprofile.net/proofs/artist/f2ba1c40-9dbd-4b28-bde9-99d7a3e9f663.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Granito de Mostaza Ibiza Summer Mix 2017
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 0xae83d901a565815bcba595c4955bd07e56ab01617fef7d56915113b41ba915e9. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/ES71G1853095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b33221a6a73ff89d1d4abbdfdbe3480a41d9687f66c8695659567fab29becf7. 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/QZB4J1838186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea281ba24991305467ba0dace142bf25976e65c4e5bc1de8bd0bbb930c39054a. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ES71G1922353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1feabca129e940c281989091457fbedc810317f0497f4ad624023a8445dce99d. 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/ES71G1941787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694f3426b96b51d9043d5f537819d4b662384b177b59528a9657af4b0fbe73fd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ES71G2022989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447bfaed62642868c32eca76c2605a661527b709ac4efcd0fc6a6c04cfd4ed0b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/ES71G2043790.
All I Want for Christmas Is Cumbia (Cumbión Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9f3d2ece6e210916f3435d5be3b40918ed68d88fb572e34610290452281204. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ES71G2153010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee17a3fd1945fe3ee03b3b680c69cf03b0c70ffd01f4d89431ed6cd5ed8c4354. 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/ES71G2212256.
Kesezooo (Pintamos Toda la Casa, ¿Qué Es Eso?)
¡Ay!, Sebastián (Música original de la película)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc73ea1975ca39f6bcf4053ca367480ffe2adea031d722dfd0c036ef8773b61. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/ES71G2303254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1eacdf7f0db3a5848be582ad58d91a9002d3fe28b4f83a6ad7cdb8768b24516. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/ES71G2322554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06918e37e2775e87a08e9868bf7ceda77e2e3f67650d2c92260e504f8fb72295. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/ES71G2408674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc024d34a0e6af1530ae1e6ae036e9393541ec343ab5a54c2284eed73de23e4f1. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ES71G2408861.
Ya Te Olvidé by Tony Rosado (House Remix)
Ya Te Olvidé by Tony Rosado (Nick Marshall Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37d3aa7fde578ab012748244672762f0e68835f9e0af4304e418213062b76f4. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/ES71G2419590.
sí soy (Limeñita Trend) by Dos Limeñitas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a060acc6d8fdb400ee5fe718def17f261208681ad4ef132b6a0c2a440a9ef8a. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/ES71G2501085.