Andreas Siegfried Sachs (7 April 1930 – 23 November 2016), known professionally as Andrew Sachs, was a German-born British actor. He made his name on British television and found his greatest fame for
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 0xb74a0d99f5f141444eb3ddfbb02a4aed7d484ef225868e35c45791098b88914c. 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/1e13f327-77d7-435f-b646-9ea5c33e8321.json and https://artists.proofprofile.net/proofs/artist/1e13f327-77d7-435f-b646-9ea5c33e8321.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
M.R. James - Casting The Runes and Other Uncanny Tales (unabridged)