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 0xfbc23454e9bed11a064d307239874fc9c5ba36e9ddfe3f9af03c6a98b414b663. 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/ff678046-d392-4ee2-b78e-c44b9a2322c7.json and https://artists.proofprofile.net/proofs/artist/ff678046-d392-4ee2-b78e-c44b9a2322c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lotus 72D / Você Tão no Alto e Eu Tão Pequeno