Martin Hub (born 13 March 1964) is a Czech character actor, best known for his portrayals of immigrants with broken English, soldiers, secret agents and bodyguards. As a professional stuntman, he is b
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 0xdd9f311d336cea5ba023fef1cdbc4a646eb7cd9725faf3191f062d8bedfa1aea. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77f76f26-a24b-4c2a-861a-448e6c809b42.json and https://artists.proofprofile.net/proofs/artist/77f76f26-a24b-4c2a-861a-448e6c809b42.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).