Itziar Castro
type: MusicGroup
description: Itziar Castro i Rivadulla (14 February 1977 – 8 December 2023) was a Spanish actress known mainly for her role as Gоya Fernández in Locked Up and participating in films such as Champions or Skins, for
popularity: 5
followers: 60
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9663173b68c96c1b2096bd1edf396051006ce6944846bfc43519ea834ed64b3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d91f3f6e-ab4a-42dd-9de4-47ccc555cf37.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d91f3f6e-ab4a-42dd-9de4-47ccc555cf37.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d91f3f6e-ab4a-42dd-9de4-47ccc555cf37
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa9663173b68c96c1b2096bd1edf396051006ce6944846bfc43519ea834ed64b3","name":"Itziar Castro","registered_at":"2026-06-21T03:50:32Z","symbol":"NIM1810693","token_address":"0x1b6adfa807410483528e0db3171e5b031c8b30a4","type":"artist","uuid":"d91f3f6e-ab4a-42dd-9de4-47ccc555cf37"}
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 0xa9663173b68c96c1b2096bd1edf396051006ce6944846bfc43519ea834ed64b3. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d91f3f6e-ab4a-42dd-9de4-47ccc555cf37.json and https://artists.proofprofile.net/proofs/artist/d91f3f6e-ab4a-42dd-9de4-47ccc555cf37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0xa9663173b68c96c1b2096bd1edf396051006ce6944846bfc43519ea834ed64b3","name":"Itziar Castro","registered_at":"2026-06-21T03:50:32Z","symbol":"NIM1810693","token_address":"0x1b6adfa807410483528e0db3171e5b031c8b30a4","type":"artist","uuid":"d91f3f6e-ab4a-42dd-9de4-47ccc555cf37"}
album: "Caballita de Mar Con Mal de Amores"
  type: MusicAlbum
  date published: 2022-09-30