thumb|Vyrus 985 C3 Vyrus is a small, exclusivist Italian motorcycle manufacturer based in Coriano, Italy. Vyrus initially worked alongside Bimota on the evolutionary development of Bimota's "Tesi" mo
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 0xa87bb0f7386872f00dacd44f3339b5be15fce5ad85c20ca512701dc6382ad8e1. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d51741bb-7811-4f5e-92aa-7f5dc20982fb.json and https://artists.proofprofile.net/proofs/artist/d51741bb-7811-4f5e-92aa-7f5dc20982fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).