Ann-Kathrin Bendixen (born 8 December 1999; pseudonym: Affe auf Bike, English translation: Monkey on Bike) is a German world traveler, Internet celebrity and author. Career Ann-Kathrin Bendixen was
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 0xf980fd4a480a0a14c6f7a2451e5c93465368b7049d82aa51345e701b1ea4f0a1. Chain 2 (Bitcoin): anchored in block 953928 (2026-06-16T10:21:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e175809-7e62-4f74-bcfe-f76313a6d743.json and https://artists.proofprofile.net/proofs/artist/1e175809-7e62-4f74-bcfe-f76313a6d743.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bikergirl (Wie ich die Freiheit suchte und das Leben fand. Motorradabenteuer einer jungen Frau – Schicksal, Krankheit, Selbstfindung. Bekannt durch den Instagram-Account »Affe auf Bike«)