Nuno Costa
type: MusicGroup
popularity: 2
followers: 202
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x374d8fbcbf019594bd004f0ef221a5cf9e3f04b83f805d75b6d5eef0d83a5842
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/28e6c211-6676-4470-a626-60a0ea717ba9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/28e6c211-6676-4470-a626-60a0ea717ba9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/28e6c211-6676-4470-a626-60a0ea717ba9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x374d8fbcbf019594bd004f0ef221a5cf9e3f04b83f805d75b6d5eef0d83a5842","name":"Nuno Costa","registered_at":"2026-06-16T03:50:32Z","symbol":"NIM0928427","token_address":"0x44e1e1747316da42ee10280496adbde510b3dc56","type":"artist","uuid":"28e6c211-6676-4470-a626-60a0ea717ba9"}
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 0x374d8fbcbf019594bd004f0ef221a5cf9e3f04b83f805d75b6d5eef0d83a5842. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28e6c211-6676-4470-a626-60a0ea717ba9.json and https://artists.proofprofile.net/proofs/artist/28e6c211-6676-4470-a626-60a0ea717ba9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
  text: {"copyright_id":"0x374d8fbcbf019594bd004f0ef221a5cf9e3f04b83f805d75b6d5eef0d83a5842","name":"Nuno Costa","registered_at":"2026-06-16T03:50:32Z","symbol":"NIM0928427","token_address":"0x44e1e1747316da42ee10280496adbde510b3dc56","type":"artist","uuid":"28e6c211-6676-4470-a626-60a0ea717ba9"}
album: Reticências entre parênteses
  type: MusicAlbum
  date published: 2009-09-10
album: All Must Go
  type: MusicAlbum
  date published: 2012-02-16
album: Detox
  type: MusicAlbum
  date published: 2015-05-14
album: Cenas de uma Vida no Bosque
  type: MusicAlbum
  date published: 2021-09-15