"La cura" () is a 1996 song by Franco Battiato, the second single from his album L'imboscata. The song was composed by Battiato following the death of his mother Grazia, and its lyrics have been sub
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 0xd9013ca0cf224a2dbce03847013f4f236052322bd505f81fa3bfab7511180250. Chain 2 (Bitcoin): anchored in block 953923 (2026-06-16T09:51:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d18da75-8999-4251-8be0-eda8d4e9cea8.json and https://artists.proofprofile.net/proofs/artist/1d18da75-8999-4251-8be0-eda8d4e9cea8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).