Franziska Fischer (born 2 August 1968) is a German journalist, TV presenter and author. Early life Franziska Fischer was born in 1968 in Göttingen. She studied theatrical studies and journalism in Fr
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdf0a240ca59bfcb90f5d98f4033a7fcee7f528f30da06e8123b2caab56d395. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/01c60059-13cf-4121-a6b5-c6177ab2f88b.json and https://artists.proofprofile.net/proofs/artist/01c60059-13cf-4121-a6b5-c6177ab2f88b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).