Helen Marlais
type: MusicGroup
popularity: 3
followers: 82
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb9c6a4e17f76ddfaa5d37f4e8240cacb6dc3afa3ca01f174b54d57dc81c835b4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953988
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953988
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ea910f3-33ac-4a87-91fd-69247f31930d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ea910f3-33ac-4a87-91fd-69247f31930d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2ea910f3-33ac-4a87-91fd-69247f31930d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:23:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb9c6a4e17f76ddfaa5d37f4e8240cacb6dc3afa3ca01f174b54d57dc81c835b4","name":"Helen Marlais","registered_at":"2026-06-16T05:48:11Z","symbol":"NIM0956545","token_address":"0x26c9cdc33e01dae6e7b6399ef8d394cd5f5afa40","type":"artist","uuid":"2ea910f3-33ac-4a87-91fd-69247f31930d"}
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 0xb9c6a4e17f76ddfaa5d37f4e8240cacb6dc3afa3ca01f174b54d57dc81c835b4. Chain 2 (Bitcoin): anchored in block 953988 (2026-06-16T18:23:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ea910f3-33ac-4a87-91fd-69247f31930d.json and https://artists.proofprofile.net/proofs/artist/2ea910f3-33ac-4a87-91fd-69247f31930d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T18:23:32Z
  text: {"copyright_id":"0xb9c6a4e17f76ddfaa5d37f4e8240cacb6dc3afa3ca01f174b54d57dc81c835b4","name":"Helen Marlais","registered_at":"2026-06-16T05:48:11Z","symbol":"NIM0956545","token_address":"0x26c9cdc33e01dae6e7b6399ef8d394cd5f5afa40","type":"artist","uuid":"2ea910f3-33ac-4a87-91fd-69247f31930d"}
album: Real Music for Kids
  type: MusicAlbum
  date published: 2006-01-01
album: More Real Music for Kids
  type: MusicAlbum
  date published: 2006-01-01
album: Classics for Toddlers
  type: MusicAlbum
  date published: 2007-01-01
album: Classics for Babies
  type: MusicAlbum
  date published: 2007-01-01