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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1dbfc70c5882c3ae38025a868056e896a64a99f15d1c238011dcdb1ecb59a37. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1dc112d-8f75-4b90-8b0f-8e14abf728f5.json and https://artists.proofprofile.net/proofs/artist/b1dc112d-8f75-4b90-8b0f-8e14abf728f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cada Quien Con Su Cruz - Carmellta Labrada
Tenias Que Ser Tan Cruel - Juan Salazar Jr