Leana is a feminine given name. Notable people with the name include: Leana de Bruin (born 1977), South African and New Zealand netball player Leana Wen (born 1983), American physician and public h
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 0xf19e2039a409ace15e26bb18f0af13334f779e2b4e02654d2fadc4ecd7a95773. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb204630-7511-47da-aef5-7afe25abb2f2.json and https://artists.proofprofile.net/proofs/artist/cb204630-7511-47da-aef5-7afe25abb2f2.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.