Evaldo Silva De Assis (born 17 August 1974) is a Brazilian footballer. He is one of the main footballers who has played for five years in the league with only one club. Career Only two clubs have eve
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 0xba5d978c0bfcfbcbd8eeeee721a7467c2bcffb06aa8e1266e4aadb17d3fd8b10. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1311af1-6890-4447-8cc3-d7bfa14b151c.json and https://artists.proofprofile.net/proofs/artist/b1311af1-6890-4447-8cc3-d7bfa14b151c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).