Marina Hands (born 10 January 1975) is a French stage and film actress. Hands is the daughter of British director Terry Hands and French actress Ludmila Mikaël, and the granddaughter of Ukrainian-Gree
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 0x961d7905d5bb818f9e4dfda3fd53b9ba1f3596203fc3874c95bb9626d8a371da. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99bd7e77-b7a3-43ee-bd1f-e723cd81ce53.json and https://artists.proofprofile.net/proofs/artist/99bd7e77-b7a3-43ee-bd1f-e723cd81ce53.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).