Vasto (Abruzzese: ; , ) is a comune on the Adriatic coast of the Province of Chieti, in southern Abruzzo, Italy. During the Middle Ages it was called Guastaymonis, Vasto d'Aimone or Waste d'Aimone.Ab
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 0xb338f00123d6e9f38221643fa2f72966d8f51179350050a1ff27f2211699aa72. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27e18fa2-7db4-4285-929c-fd1f862181ef.json and https://artists.proofprofile.net/proofs/artist/27e18fa2-7db4-4285-929c-fd1f862181ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).