Niels Henningsen
type: MusicGroup
popularity: 13
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb21bdfd2e6461d25fd1fef093cb9591f0c4db328311d8901b240ce1844c23fe8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e13fe2d0-6363-4c59-b9f2-b065e66e061d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e13fe2d0-6363-4c59-b9f2-b065e66e061d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e13fe2d0-6363-4c59-b9f2-b065e66e061d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb21bdfd2e6461d25fd1fef093cb9591f0c4db328311d8901b240ce1844c23fe8","name":"Niels Henningsen","registered_at":"2026-06-15T04:05:47Z","symbol":"NIM0676695","token_address":"0xf487afc141dc80b302383a24345b6f84872139f6","type":"artist","uuid":"e13fe2d0-6363-4c59-b9f2-b065e66e061d"}
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 0xb21bdfd2e6461d25fd1fef093cb9591f0c4db328311d8901b240ce1844c23fe8. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e13fe2d0-6363-4c59-b9f2-b065e66e061d.json and https://artists.proofprofile.net/proofs/artist/e13fe2d0-6363-4c59-b9f2-b065e66e061d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0xb21bdfd2e6461d25fd1fef093cb9591f0c4db328311d8901b240ce1844c23fe8","name":"Niels Henningsen","registered_at":"2026-06-15T04:05:47Z","symbol":"NIM0676695","token_address":"0xf487afc141dc80b302383a24345b6f84872139f6","type":"artist","uuid":"e13fe2d0-6363-4c59-b9f2-b065e66e061d"}
album: Blue in Green
  type: MusicAlbum
  date published: 2024-08-16
album: Never Forget
  type: MusicAlbum
  date published: 2024-09-13
album: Our Time Is Now
  type: MusicAlbum
  date published: 2024-10-18
album: always you
  type: MusicAlbum
  date published: 2025-05-16
album: crystals
  type: MusicAlbum
  date published: 2025-06-20