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 0x39f245cd642a048862d48c7c7ffae7f1b7ad6a915767e12d9694bcd6d2312f43. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/758c5955-0c78-4a79-b2c9-e283e8b15663.json and https://artists.proofprofile.net/proofs/artist/758c5955-0c78-4a79-b2c9-e283e8b15663.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nada De Esto Es Real: Francisco Fuentes Project Live at Teatro El Globo, BA (Aug 2022) [Live at Teatro El Globo, BA, Aug 2022]
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 0x725b8d63c94088b5fef925504971ca3337adfce2553ddf6c3e7f6e735e08b9c6. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZNWX2269818.
Todo Tiene Un Comienzo: Francisco Fuentes Project in Concert (Live at El Emergente, BA, Nov 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e09a78669f5fbcf304148d33f744afa0546b2ebc3dd17856353398c712c4fd2. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZK6F2388344.
Con Vos A Mi Lado (Deluxe. Live at La Tangente, BA, Oct 2023)
En Todo Viaje Al Infinito (Acoustic. Live & Unreleased, BA, Oct 2024)