Ernst Peter Fischer
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description: Ernst Peter Fischer (born 18 January 1947) is a German Historian of Science and Publicist. Life and work Ernst Peter Fischer studied mathematics, physics, and biology and graduated from the Californi
popularity: 20
followers: 383
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additional property: OTSVerifyInstructions
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  value: 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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f8f0f67d6f66f84ccc4b0b090ca6b10924e1119961b585da4e2b7ead066914. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9ddc44d-9bdb-4e07-8984-afa73a11289d.json and https://artists.proofprofile.net/proofs/artist/b9ddc44d-9bdb-4e07-8984-afa73a11289d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:21:23Z
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