Vil may refer to People (1927–1979), Soviet writer Vil Mirzayanov (born 1935), Soviet-born American chemical weapons expert Guy Saint-Vil (born 1942), Haitian football forward Melissa St. Vil (bor
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 0x08cf44c3acbf6bcce9ea835c2b6752def7ef041aa927080d5aaaf7b91f354dfa. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0ad1345-9661-44fb-a5ac-f6496ed9ee12.json and https://artists.proofprofile.net/proofs/artist/d0ad1345-9661-44fb-a5ac-f6496ed9ee12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).