Pietro Ballo
type: MusicGroup
genre: canzone napoletana
genre: neoclassical
description: 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
popularity: 4
followers: 89
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37cb7f346c730aeab1f2ef56fea6153861b0556d7e09dfa1137d8b024d9c1552
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9914576-a393-4c6e-b70e-426495be6c79.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9914576-a393-4c6e-b70e-426495be6c79.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b9914576-a393-4c6e-b70e-426495be6c79
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x37cb7f346c730aeab1f2ef56fea6153861b0556d7e09dfa1137d8b024d9c1552","name":"Pietro Ballo","registered_at":"2026-06-20T16:17:15Z","symbol":"NIM1653385","token_address":"0xf3b67fdacbb1a131ab15dc3d04aa423b45d1858f","type":"artist","uuid":"b9914576-a393-4c6e-b70e-426495be6c79"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: 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).
  date published: 2026-06-20T19:15:05Z
  text: {"copyright_id":"0x37cb7f346c730aeab1f2ef56fea6153861b0556d7e09dfa1137d8b024d9c1552","name":"Pietro Ballo","registered_at":"2026-06-20T16:17:15Z","symbol":"NIM1653385","token_address":"0xf3b67fdacbb1a131ab15dc3d04aa423b45d1858f","type":"artist","uuid":"b9914576-a393-4c6e-b70e-426495be6c79"}
album: Donizetti: Caterina Cornaro
  type: MusicAlbum
  date published: 1995-01-01