Lucas Oliveira Rosa (born 3 April 2000) is a Brazilian professional footballer who plays as a defender for Dutch club Ajax. Mainly a right-back, he has been deployed as a right wing-back and a left-ba
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 0x7a62219065bd6865778852dbbb3f11334271c8609a110bff490ba0d69b91d6b2. Chain 2 (Bitcoin): anchored in block 953871 (2026-06-16T01:46:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0717d231-dfb1-47c2-b886-50e7bf98d3d2.json and https://artists.proofprofile.net/proofs/artist/0717d231-dfb1-47c2-b886-50e7bf98d3d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).