Asinara is an Italian island of in area. The name is Italian for "donkey-inhabited", but it is thought to derive from the Latin "sinuaria", and meaning sinus-shaped. The island is virtually uninhabit
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 0x9781ae59c78c57f6f65283c65034efa747355f24f9ce8120059db588f020ad08. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dec29ac2-a87b-44d4-ba35-aedc3a9853da.json and https://artists.proofprofile.net/proofs/artist/dec29ac2-a87b-44d4-ba35-aedc3a9853da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).