Maren Eggert (born 30 January 1974) is a German actress. She is best known for playing the role of Frieda Jung in the German TV series Tatort. Another notable appearance of her is the role of Dora in
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 0xb6404cb25ac923bb2f07dfbfcc72d4783cbdaef800687055fde5391199718271. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/827f41ee-ffad-4d05-b618-43803e462fd2.json and https://artists.proofprofile.net/proofs/artist/827f41ee-ffad-4d05-b618-43803e462fd2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).