Jorge Mário da Silva, more commonly known by his stage name Seu Jorge (Seu, Brasilian Portuguese for "Mister" or "Sir"; born June 8, 1970; ), is a Brazilian musical artist, songwriter, and actor. He
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc338da50d71127ef76d5c73f3d93fa44d32d664c7ff0cbb8dc4d30b9bf616d49. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/962a69e4-9a8b-44e4-9da1-e2b2d0f047ea.json and https://artists.proofprofile.net/proofs/artist/962a69e4-9a8b-44e4-9da1-e2b2d0f047ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).