Juan Cantero
type: MusicGroup
genre: flamenco
popularity: 2
followers: 231
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4462f068143f1d5b9097437bb26df6d6e8dd7f6e833b9d878f68381b73bb3ea9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/19ae306d-ab9a-498e-baf5-ae11f4c858d1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/19ae306d-ab9a-498e-baf5-ae11f4c858d1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/19ae306d-ab9a-498e-baf5-ae11f4c858d1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:28:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4462f068143f1d5b9097437bb26df6d6e8dd7f6e833b9d878f68381b73bb3ea9","name":"Juan Cantero","registered_at":"2026-06-15T22:28:17Z","symbol":"NIM0851460","token_address":"0x91ba2706871316653573c24c0f6c72240e6c8100","type":"artist","uuid":"19ae306d-ab9a-498e-baf5-ae11f4c858d1"}
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 0x4462f068143f1d5b9097437bb26df6d6e8dd7f6e833b9d878f68381b73bb3ea9. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19ae306d-ab9a-498e-baf5-ae11f4c858d1.json and https://artists.proofprofile.net/proofs/artist/19ae306d-ab9a-498e-baf5-ae11f4c858d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x4462f068143f1d5b9097437bb26df6d6e8dd7f6e833b9d878f68381b73bb3ea9","name":"Juan Cantero","registered_at":"2026-06-15T22:28:17Z","symbol":"NIM0851460","token_address":"0x91ba2706871316653573c24c0f6c72240e6c8100","type":"artist","uuid":"19ae306d-ab9a-498e-baf5-ae11f4c858d1"}
album: Mi Extremadura
  type: MusicAlbum
  date published: 2013-10-24