Diana Enache (born 12 December 1987; formerly known as Diana Buzean) is a Romanian former tennis player. In her career, she won 13 singles and 49 doubles titles on the ITF Women's Circuit. On 11 Apri
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 0xaa7ab79a8da860bbb6ea4df2e0fe76bde108c2b982bf5ecc9f0630caa780f89a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5cf38891-39fa-40c1-b993-29a3e2960142.json and https://artists.proofprofile.net/proofs/artist/5cf38891-39fa-40c1-b993-29a3e2960142.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).