Helena de Paula
type: MusicGroup
genre: samba
popularity: 2
followers: 80
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0b87b5c566fd637327233ea86fe3893cd0d9ef50108af4415770bac425accbde
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/19ff5e50-7149-477a-a7f8-cf6c15cc2813.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/19ff5e50-7149-477a-a7f8-cf6c15cc2813.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/19ff5e50-7149-477a-a7f8-cf6c15cc2813
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0b87b5c566fd637327233ea86fe3893cd0d9ef50108af4415770bac425accbde","name":"Helena de Paula","registered_at":"2026-06-15T22:37:21Z","symbol":"NIM0853629","token_address":"0x20041903912ba8c5b26cff277d7bae7ec523581d","type":"artist","uuid":"19ff5e50-7149-477a-a7f8-cf6c15cc2813"}
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 0x0b87b5c566fd637327233ea86fe3893cd0d9ef50108af4415770bac425accbde. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19ff5e50-7149-477a-a7f8-cf6c15cc2813.json and https://artists.proofprofile.net/proofs/artist/19ff5e50-7149-477a-a7f8-cf6c15cc2813.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x0b87b5c566fd637327233ea86fe3893cd0d9ef50108af4415770bac425accbde","name":"Helena de Paula","registered_at":"2026-06-15T22:37:21Z","symbol":"NIM0853629","token_address":"0x20041903912ba8c5b26cff277d7bae7ec523581d","type":"artist","uuid":"19ff5e50-7149-477a-a7f8-cf6c15cc2813"}
album: Green Eyes
  type: MusicAlbum
  date published: 2002