Héloïse Werner
type: MusicGroup
genre: neoclassical
description: Héloïse Werner is a French-British soprano and composer based in London. Education and career Werner studied as a choral scholar at Clare College, Cambridge before receiving an MA from Trinity Lab
popularity: 4
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x603adf23e625b365a698e898cfc65e00fb14a8139fde0e139a532a4bbbad0ac7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953932
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953932
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f331ba5-5ba1-46e5-925c-ec074b3c5aec.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f331ba5-5ba1-46e5-925c-ec074b3c5aec.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1f331ba5-5ba1-46e5-925c-ec074b3c5aec
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x603adf23e625b365a698e898cfc65e00fb14a8139fde0e139a532a4bbbad0ac7","name":"Héloïse Werner","registered_at":"2026-06-16T00:24:25Z","symbol":"NIM0879204","token_address":"0x49b2e595ba0ef935069a49fae2a6f23cd1c4a9be","type":"artist","uuid":"1f331ba5-5ba1-46e5-925c-ec074b3c5aec"}
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 0x603adf23e625b365a698e898cfc65e00fb14a8139fde0e139a532a4bbbad0ac7. Chain 2 (Bitcoin): anchored in block 953932 (2026-06-16T11:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f331ba5-5ba1-46e5-925c-ec074b3c5aec.json and https://artists.proofprofile.net/proofs/artist/1f331ba5-5ba1-46e5-925c-ec074b3c5aec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:10:43Z
  text: {"copyright_id":"0x603adf23e625b365a698e898cfc65e00fb14a8139fde0e139a532a4bbbad0ac7","name":"Héloïse Werner","registered_at":"2026-06-16T00:24:25Z","symbol":"NIM0879204","token_address":"0x49b2e595ba0ef935069a49fae2a6f23cd1c4a9be","type":"artist","uuid":"1f331ba5-5ba1-46e5-925c-ec074b3c5aec"}