Lenka Krobotová (born 10 March 1977) is a Czech actress. She won the Czech Lion award for Best Supporting Actress in 2014 for her role in the film Díra u Hanušovic. She is the daughter of actor and di
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 0x96d8c2559a3a6138d53b123088dacf72cdc2ce9eb2fcdfc8adf193a6ce1611e7. 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/68bd7302-b176-485b-ad07-2d1baf21c523.json and https://artists.proofprofile.net/proofs/artist/68bd7302-b176-485b-ad07-2d1baf21c523.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.