1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe5f607d531b534f3f5fc5ee1d5acab6fbe1843fa63f282b540efbb6a3c9f5f2c. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a4ab601-d423-4819-923c-b38412017341.json and https://artists.proofprofile.net/proofs/artist/2a4ab601-d423-4819-923c-b38412017341.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tributo a Sergio Y Estibaliz / Trigo Limpio
Tributo a Sergio y Estibaliz / Trigo Limpio 2
Aldeana De Madera Preludio Para Mi Guitarra
Gibrann Canta Por Sevillanas a La Guitarra Aitor Escobar
México Se Pinta de Luz (Only for Streaming)
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 → block OTSBitcoinBlock must exist at that height 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 0xf86f33b938c5f77c753aea161b2f5f1f19902ea96c74e603875e4b949dd9d62c. 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/TCABR1397071.