Javier De La Cueva
type: MusicGroup
description: Javier de la Cueva (born 1962 in Madrid), is a lawyer specialized in technology and the Internet. He graduated in Law and is Doctor in Philosophy from the Complutense University of Madrid. He has defe
popularity: 2
followers: 196
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc7e7505cd514d7ae6094bde0119751f5483c81caee11688e8005dd031efc338c
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/f77b541a-50f6-4ea5-aa3f-cbf994337233.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f77b541a-50f6-4ea5-aa3f-cbf994337233.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f77b541a-50f6-4ea5-aa3f-cbf994337233
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc7e7505cd514d7ae6094bde0119751f5483c81caee11688e8005dd031efc338c","name":"Javier De La Cueva","registered_at":"2026-06-21T15:54:49Z","symbol":"NIM1964558","token_address":"0xe2a599b6370a5b498c57d016622bd85ad631abca","type":"artist","uuid":"f77b541a-50f6-4ea5-aa3f-cbf994337233"}
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 0xc7e7505cd514d7ae6094bde0119751f5483c81caee11688e8005dd031efc338c. 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/f77b541a-50f6-4ea5-aa3f-cbf994337233.json and https://artists.proofprofile.net/proofs/artist/f77b541a-50f6-4ea5-aa3f-cbf994337233.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xc7e7505cd514d7ae6094bde0119751f5483c81caee11688e8005dd031efc338c","name":"Javier De La Cueva","registered_at":"2026-06-21T15:54:49Z","symbol":"NIM1964558","token_address":"0xe2a599b6370a5b498c57d016622bd85ad631abca","type":"artist","uuid":"f77b541a-50f6-4ea5-aa3f-cbf994337233"}
album: Javier De La Cueva
  type: MusicAlbum
  date published: 2024-06-19
album: Javier De La Cueva
  type: MusicAlbum
  date published: 2024-06-19