Cadão Volpato
type: MusicGroup
genre: nova mpb
description: Carlos Adão "Cadão" Volpato (born December 28, 1956) is a Brazilian musician, artist, journalist and writer. He is best known for being the frontman of cult post-punk band Fellini. Biography Cadão Vo
popularity: 2
followers: 260
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8b4716f1d47c9db1cb9889be23e767d8a9bf0e3760bb914c80984901d6a98414
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d08d7fe5-a68b-4dc1-8485-f1763c13d35d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d08d7fe5-a68b-4dc1-8485-f1763c13d35d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d08d7fe5-a68b-4dc1-8485-f1763c13d35d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8b4716f1d47c9db1cb9889be23e767d8a9bf0e3760bb914c80984901d6a98414","name":"Cadão Volpato","registered_at":"2026-06-21T00:54:09Z","symbol":"NIM1767913","token_address":"0xdc6483f958093a2bf8e6f3492f833084dead063c","type":"artist","uuid":"d08d7fe5-a68b-4dc1-8485-f1763c13d35d"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4716f1d47c9db1cb9889be23e767d8a9bf0e3760bb914c80984901d6a98414. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d08d7fe5-a68b-4dc1-8485-f1763c13d35d.json and https://artists.proofprofile.net/proofs/artist/d08d7fe5-a68b-4dc1-8485-f1763c13d35d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x8b4716f1d47c9db1cb9889be23e767d8a9bf0e3760bb914c80984901d6a98414","name":"Cadão Volpato","registered_at":"2026-06-21T00:54:09Z","symbol":"NIM1767913","token_address":"0xdc6483f958093a2bf8e6f3492f833084dead063c","type":"artist","uuid":"d08d7fe5-a68b-4dc1-8485-f1763c13d35d"}
album: Tudo que eu quero dizer tem que ser no ouvido
  type: MusicAlbum
  date published: 2006-10-17