Ada De Castro
type: MusicGroup
genre: fado
popularity: 5
followers: 1235
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb0ae2dc3dbd81e6e18a48be09ed5d1bf0ed1173ab9a2d41a284775aa16028f70
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4acaf71-4650-47a5-a80f-b854d0a23648.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4acaf71-4650-47a5-a80f-b854d0a23648.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c4acaf71-4650-47a5-a80f-b854d0a23648
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb0ae2dc3dbd81e6e18a48be09ed5d1bf0ed1173ab9a2d41a284775aa16028f70","name":"Ada De Castro","registered_at":"2026-06-20T20:40:42Z","symbol":"NIM1709535","token_address":"0xc297341cf4da6311f650fc68d1b262da0f78eb48","type":"artist","uuid":"c4acaf71-4650-47a5-a80f-b854d0a23648"}
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 0xb0ae2dc3dbd81e6e18a48be09ed5d1bf0ed1173ab9a2d41a284775aa16028f70. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4acaf71-4650-47a5-a80f-b854d0a23648.json and https://artists.proofprofile.net/proofs/artist/c4acaf71-4650-47a5-a80f-b854d0a23648.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xb0ae2dc3dbd81e6e18a48be09ed5d1bf0ed1173ab9a2d41a284775aa16028f70","name":"Ada De Castro","registered_at":"2026-06-20T20:40:42Z","symbol":"NIM1709535","token_address":"0xc297341cf4da6311f650fc68d1b262da0f78eb48","type":"artist","uuid":"c4acaf71-4650-47a5-a80f-b854d0a23648"}
album: Pedi Perdão
  type: MusicAlbum
  date published: 1965-01-01
album: The Best Of Fado
  type: MusicAlbum
  date published: 1970-01-01
album: A Severa Que Me Diga
  type: MusicAlbum
  date published: 1973-07-13
album: Alguém mandou-me violetas
  type: MusicAlbum
  date published: 1974-09-30
album: O Povo a Cantar
  type: MusicAlbum
  date published: 1975-05-04
album: Mulher Povo
  type: MusicAlbum
  date published: 1977-04-05
album: Fados e Canções
  type: MusicAlbum
  date published: 1990-01-01
album: Portugal Dos Oceanos
  type: MusicAlbum
  date published: 2004
album: Ada de Castro
  type: MusicAlbum
  date published: 2014-10-22
album: Ada de Castro
  type: MusicAlbum
  date published: 2014-10-22
album: Estrelas da Música Portuguesa
  type: MusicAlbum
  date published: 2015-08-21