Doris Gercke (; 7 February 1937 – 25 July 2025) was a German writer of novels, especially thrillers but also books for children and youth, and poetry. For some books, she used the pen name Mary-Jo Mor
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 0x75a9b982e5cb3503de7642859c2ab59260cfa38a00452e69f2d8f50f10c964dd. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf8b9b5b-eee3-468c-b06a-367533046f8e.json and https://artists.proofprofile.net/proofs/artist/cf8b9b5b-eee3-468c-b06a-367533046f8e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schlaf, Kindchen, schlaf. Ein Bella Block Krimi
Du musst hängen – Ein Fall für Bella Block