Luca Helsdingen
type: MusicGroup
popularity: 3
followers: 22
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1e1ef891f849fde52ff9b635490e002ccba6e5c4ea420b398c6aa34289067146
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954593
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954593
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be954c32-3945-4bad-bd8e-3ae39a7ab7e9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be954c32-3945-4bad-bd8e-3ae39a7ab7e9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/be954c32-3945-4bad-bd8e-3ae39a7ab7e9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:46:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1e1ef891f849fde52ff9b635490e002ccba6e5c4ea420b398c6aa34289067146","name":"Luca Helsdingen","registered_at":"2026-06-20T18:19:06Z","symbol":"NIM1676572","token_address":"0xbe466089c4b4808c221ae2d0bb0441cb138661be","type":"artist","uuid":"be954c32-3945-4bad-bd8e-3ae39a7ab7e9"}
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 0x1e1ef891f849fde52ff9b635490e002ccba6e5c4ea420b398c6aa34289067146. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be954c32-3945-4bad-bd8e-3ae39a7ab7e9.json and https://artists.proofprofile.net/proofs/artist/be954c32-3945-4bad-bd8e-3ae39a7ab7e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:46:01Z
  text: {"copyright_id":"0x1e1ef891f849fde52ff9b635490e002ccba6e5c4ea420b398c6aa34289067146","name":"Luca Helsdingen","registered_at":"2026-06-20T18:19:06Z","symbol":"NIM1676572","token_address":"0xbe466089c4b4808c221ae2d0bb0441cb138661be","type":"artist","uuid":"be954c32-3945-4bad-bd8e-3ae39a7ab7e9"}
album: 10/10
  type: MusicAlbum
  date published: 2025-01-25
album: De wereld niet uit
  type: MusicAlbum
  date published: 2025-03-19
album: Laten gaan
  type: MusicAlbum
  date published: 2025-06-20
album: Club 43
  type: MusicAlbum
  date published: 2025-07-04
album: Alles goed?
  type: MusicAlbum
  date published: 2025-07-18