Vinnie Dombroski (born December 4, 1962)https://books.google.com/books?id=-A0KAQAAMAAJ&q=vinnie+dombroski+1962&dq=vinnie+dombroski+1962&hl=en&newbks=1&newbks_redir=0&source=gb_mobile_search&sa=X&ved=2
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 0x72971a46bf1934d9513776bf0c94cd49287454cdecd3f0c1a50490ab5ee0f84e. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b81e0338-117b-44ba-9748-922957e02ec1.json and https://artists.proofprofile.net/proofs/artist/b81e0338-117b-44ba-9748-922957e02ec1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).