Hodak is a Croatian surname. Notable people with the surname include: Bojan Hodak (born 1971), Croatian footballer and manager Domenica Hodak (born 1991), American soccer player Jerry Hodak (born 194
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 0x54efa491fced2ef45b841869b43361179943ccb15d6b185323a6b9bcd3cc37d3. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c018231b-8ff9-4a7b-ba87-260948712808.json and https://artists.proofprofile.net/proofs/artist/c018231b-8ff9-4a7b-ba87-260948712808.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).