Dieter Walter Ehrlich (born 20 September 1941) is a German former field hockey player who competed at the 1964 Summer Olympics and the 1968 Summer Olympics. He was born in Dohna, Saxony, Germany. Ol
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 0x9120db3a0221afedf4cc92205adcb7d5ec8832e96c6d560910f8738437876315. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/054fdb10-e89e-41f4-942d-83e3da679262.json and https://artists.proofprofile.net/proofs/artist/054fdb10-e89e-41f4-942d-83e3da679262.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).