Walter Junior Cabral Bueriberi (born 25 September 1995) is a professional basketball player who plays as a power forward for Liga Națională club Craiova. Born in Spain, he plays for the Equatorial Gui
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 0x1dd6d0d264875a1fd90b00bdff61527f4177a753a3d8f9306ef4bf93f85362b2. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/184d1385-69e0-427e-a2c8-a3a7f0dacf40.json and https://artists.proofprofile.net/proofs/artist/184d1385-69e0-427e-a2c8-a3a7f0dacf40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).