Pietro Ballo (born October 2, 1952, in Palermo) is an Italian operatic tenor singer. He came from a family of laborers, and he himself worked in a quarry in Sicily before changing his professional ori
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 0x37cb7f346c730aeab1f2ef56fea6153861b0556d7e09dfa1137d8b024d9c1552. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9914576-a393-4c6e-b70e-426495be6c79.json and https://artists.proofprofile.net/proofs/artist/b9914576-a393-4c6e-b70e-426495be6c79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).