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 0xe6841f63a00de2c40d9eb07bc5f9456286cd80bbf7e294a3f86ae07b23c80da9. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa93d9bf-49fb-498f-95e5-013dc23067e0.json and https://artists.proofprofile.net/proofs/artist/fa93d9bf-49fb-498f-95e5-013dc23067e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brasil Ainda é Brasil - Homenagem á Jair Messias Bolsonaro
Brasil Ainda é Brasil - Homenagem àJair Messias Bolsonaro