Beatriz Costa
type: MusicGroup
genre: fado
description: Beatriz Costa (born Beatriz da Conceição, 14 December 1907 – 15 April 1996) was a Portuguese actress, active during the golden age of Portuguese cinema. She was the author of several books. Costa deb
popularity: 10
followers: 1100
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2b525e431b4cc8a9101ea63c73d846508ed94c8106bde350456bb2fb97e5aa27
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953923
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953923
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cc5d42f-2a82-4389-9830-1cd960275d72.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cc5d42f-2a82-4389-9830-1cd960275d72.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1cc5d42f-2a82-4389-9830-1cd960275d72
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:51:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2b525e431b4cc8a9101ea63c73d846508ed94c8106bde350456bb2fb97e5aa27","name":"Beatriz Costa","registered_at":"2026-06-15T23:34:26Z","symbol":"NIM0867274","token_address":"0x03b59e43a25d0c559237f3724399174a796d1637","type":"artist","uuid":"1cc5d42f-2a82-4389-9830-1cd960275d72"}
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 0x2b525e431b4cc8a9101ea63c73d846508ed94c8106bde350456bb2fb97e5aa27. Chain 2 (Bitcoin): anchored in block 953923 (2026-06-16T09:51:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cc5d42f-2a82-4389-9830-1cd960275d72.json and https://artists.proofprofile.net/proofs/artist/1cc5d42f-2a82-4389-9830-1cd960275d72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T09:51:37Z
  text: {"copyright_id":"0x2b525e431b4cc8a9101ea63c73d846508ed94c8106bde350456bb2fb97e5aa27","name":"Beatriz Costa","registered_at":"2026-06-15T23:34:26Z","symbol":"NIM0867274","token_address":"0x03b59e43a25d0c559237f3724399174a796d1637","type":"artist","uuid":"1cc5d42f-2a82-4389-9830-1cd960275d72"}
album: Facilitar
  type: MusicAlbum
  date published: 2021-09-24
album: Moonlit Echoes
  type: MusicAlbum
  date published: 2024-06-20