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 0x2c8ad0bfa8b22544b73d91ab4a4e06219189e460f87bff195e8a4148e3026397. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c133c9e3-206d-4dd5-8dcb-12caddc51a70.json and https://artists.proofprofile.net/proofs/artist/c133c9e3-206d-4dd5-8dcb-12caddc51a70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
VanVanero Siempre Sere (Encuentro Y Partida)
Salsa 2015 - 20 Original Salsa Hits! (Salsa Romantica y para Bailar: Puertorriqueña, Cubana, Dominicana, Colombiana, Venezolana)
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 0x6b0a2ee9751ef6840f83820b81d5655f1c13b7788810ffcba0f52e57382872bb. 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/ITF251400149.
Latino 59 presenta: Bailando (Salsa Bachata Merengue Urbano Reggaeton Dembow Fitness)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0a2ee9751ef6840f83820b81d5655f1c13b7788810ffcba0f52e57382872bb. 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/ITF251400149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f9e3a78d715359fb5cf8d27b214023796ea2b9255e0bd0ae0ab477af091eec. 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/FR6V81478248.