Anna Maria Chiuri
type: MusicGroup
genre: opera
description: thumb|This is the Official Picture of the Italian mezzo-soprano Anna Maria Chiuri Anna Maria Chiuri (born October 3, 1968) is an Italian mezzo-soprano. She has performed at leading opera houses and c
popularity: 2
followers: 73
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9722e40d9cbe6308a04fdc093d44686e5d92c141f063a6ee2682597c69486bd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f2950fa2-8de4-4b63-8f17-4d3ab81221aa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f2950fa2-8de4-4b63-8f17-4d3ab81221aa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f2950fa2-8de4-4b63-8f17-4d3ab81221aa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa9722e40d9cbe6308a04fdc093d44686e5d92c141f063a6ee2682597c69486bd","name":"Anna Maria Chiuri","registered_at":"2026-06-21T14:12:40Z","symbol":"NIM1944213","token_address":"0x5cd79e6781e86c7a185f97cce476e3a44b7695da","type":"artist","uuid":"f2950fa2-8de4-4b63-8f17-4d3ab81221aa"}
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 0xa9722e40d9cbe6308a04fdc093d44686e5d92c141f063a6ee2682597c69486bd. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2950fa2-8de4-4b63-8f17-4d3ab81221aa.json and https://artists.proofprofile.net/proofs/artist/f2950fa2-8de4-4b63-8f17-4d3ab81221aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xa9722e40d9cbe6308a04fdc093d44686e5d92c141f063a6ee2682597c69486bd","name":"Anna Maria Chiuri","registered_at":"2026-06-21T14:12:40Z","symbol":"NIM1944213","token_address":"0x5cd79e6781e86c7a185f97cce476e3a44b7695da","type":"artist","uuid":"f2950fa2-8de4-4b63-8f17-4d3ab81221aa"}
album: Puccini: Gianni Schicchi, SC 88 (Live)
  type: MusicAlbum
  date published: 2020-08-21