Strange Tales is a Marvel Comics anthology series. The title was revived in different forms on multiple occasions. Doctor Strange and Nick Fury, Agent of S.H.I.E.L.D. made their debuts in Strange Tale
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 0x6b5456f2a2d4ed2796991b09c73758a5891bb33bf1e5dc3c19335b29b1836ed0. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e9df6bc-763f-4e07-9559-64003fef75c7.json and https://artists.proofprofile.net/proofs/artist/6e9df6bc-763f-4e07-9559-64003fef75c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).