Marchiano is an Italian surname. Notable people with the surname include: Bruce Marchiano (born 1956), American actor Sal Marchiano (born 1941), American sportscaster Sam Marchiano, American sportsca
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 0x7bb3cfa73a04acb34aa096e39ddade1763d9380bd832b7e3dd07584e1633ce2a. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d12961c-f3ed-4a6e-9889-76fd2b8f24ec.json and https://artists.proofprofile.net/proofs/artist/2d12961c-f3ed-4a6e-9889-76fd2b8f24ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).