Mathi is a comune (municipality) in the Metropolitan City of Turin in the Italian region Piedmont, located about northwest of Turin. Mathi borders the following municipalities: Corio, Balangero, Gro
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 0xe1fa94ed677dde2b7f5d057f1b06b5a7cbaedf5bc573fb7983cb8b2dd35761c3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0fa06f9f-279f-460a-91ab-5b09e88133d8.json and https://artists.proofprofile.net/proofs/artist/0fa06f9f-279f-460a-91ab-5b09e88133d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).