Emma Richter (, 4 March 1888 – 15 November 1956) was a German paleontologist. She is best known for her work concerning Trilobites. She was an honorary member of the Paleontological Society of America
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 0x1a40b13093cad23a5fe52d5edca3ba0d2d131b571707aadab01fc5b2258520b7. 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/e3fb7fb9-77d7-425b-8d3e-e16811855209.json and https://artists.proofprofile.net/proofs/artist/e3fb7fb9-77d7-425b-8d3e-e16811855209.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.