Juan Estrada
type: MusicGroup
description: Juan Alberto Estrada (28 October 1912 – 28 May 1985) was an Argentine football goalkeeper who won two Copa América championships with the Argentina national team and two league titles with Boca Junior
popularity: 5
followers: 78
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x87faa59930537c8d48e06d0c16e29b810f54645505b3ab93a410dd303cfef137
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/985ac1f0-fc6a-487d-b00e-8672d70c911f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/985ac1f0-fc6a-487d-b00e-8672d70c911f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/985ac1f0-fc6a-487d-b00e-8672d70c911f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x87faa59930537c8d48e06d0c16e29b810f54645505b3ab93a410dd303cfef137","name":"Juan Estrada","registered_at":"2026-06-17T19:05:13Z","symbol":"NIM1490202","token_address":"0x67d9db2788bf1ca6fc68fccb22acf8710d30330c","type":"artist","uuid":"985ac1f0-fc6a-487d-b00e-8672d70c911f"}
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 0x87faa59930537c8d48e06d0c16e29b810f54645505b3ab93a410dd303cfef137. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/985ac1f0-fc6a-487d-b00e-8672d70c911f.json and https://artists.proofprofile.net/proofs/artist/985ac1f0-fc6a-487d-b00e-8672d70c911f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x87faa59930537c8d48e06d0c16e29b810f54645505b3ab93a410dd303cfef137","name":"Juan Estrada","registered_at":"2026-06-17T19:05:13Z","symbol":"NIM1490202","token_address":"0x67d9db2788bf1ca6fc68fccb22acf8710d30330c","type":"artist","uuid":"985ac1f0-fc6a-487d-b00e-8672d70c911f"}
album: El Maestro
  type: MusicAlbum
  date published: 2022-04-22
album: El Muchacho de la Escuadra
  type: MusicAlbum
  date published: 2022-10-01