Gilson Tussi (born 1984), Brazilian footballer Tussi, or tusi, a recreational drug
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 0xa8252a3e9196ae2591e3c18411ec4488b50bbc7f2fd54e8dc9fd78610f2c6558. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd451db4-d15d-4fd2-bad2-66f807d20890.json and https://artists.proofprofile.net/proofs/artist/bd451db4-d15d-4fd2-bad2-66f807d20890.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).