Mister E is a fictional character appearing in magazines published by DC Comics. Created by Bob Rozakis and Jack C. Harris, the character first appeared in Secrets of Haunted House #31 (December 1980)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e8c3cf532ff6eb48196a639280b0b3656ba007420824286c04753a839e1a50. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc44df6b-f3d7-4bdc-ae83-119c7594a52a.json and https://artists.proofprofile.net/proofs/artist/cc44df6b-f3d7-4bdc-ae83-119c7594a52a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).