Ben Kempner
type: MusicGroup
popularity: 2
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xde4c67a5af1f21c1cd305d924e1214ac73d00d365a3413dda145106a4240885f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a623ea34-98a5-4338-8dd5-6d11726b5c7d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a623ea34-98a5-4338-8dd5-6d11726b5c7d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a623ea34-98a5-4338-8dd5-6d11726b5c7d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xde4c67a5af1f21c1cd305d924e1214ac73d00d365a3413dda145106a4240885f","name":"Ben Kempner","registered_at":"2026-06-20T07:36:10Z","symbol":"NIM1556277","token_address":"0xd7d07ba4862d711585d1ec7b78c9c6fc9a30f6cc","type":"artist","uuid":"a623ea34-98a5-4338-8dd5-6d11726b5c7d"}
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 0xde4c67a5af1f21c1cd305d924e1214ac73d00d365a3413dda145106a4240885f. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a623ea34-98a5-4338-8dd5-6d11726b5c7d.json and https://artists.proofprofile.net/proofs/artist/a623ea34-98a5-4338-8dd5-6d11726b5c7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xde4c67a5af1f21c1cd305d924e1214ac73d00d365a3413dda145106a4240885f","name":"Ben Kempner","registered_at":"2026-06-20T07:36:10Z","symbol":"NIM1556277","token_address":"0xd7d07ba4862d711585d1ec7b78c9c6fc9a30f6cc","type":"artist","uuid":"a623ea34-98a5-4338-8dd5-6d11726b5c7d"}
album: The Moonlight
  type: MusicAlbum
  date published: 2023-04-28
album: Treasure Beach
  type: MusicAlbum
  date published: 2023-04-28
album: Anytime My Ocean
  type: MusicAlbum
  date published: 2023-08-04
album: The Holiday Of House
  type: MusicAlbum
  date published: 2023-09-15
album: Father Holds The Gun
  type: MusicAlbum
  date published: 2024-02-19
album: Walk Of Love
  type: MusicAlbum
  date published: 2024-03-01
album: Made For You
  type: MusicAlbum
  date published: 2024-07-19
album: Daydream
  type: MusicAlbum
  date published: 2024-08-19
album: Fire At The Party
  type: MusicAlbum
  date published: 2024-10-14
album: Relentless
  type: MusicAlbum
  date published: 2024-11-25
album: Clash Of The Houses
  type: MusicAlbum
  date published: 2025-02-28
album: Steam Train
  type: MusicAlbum
  date published: 2025-06-29
album: I Feel For You
  type: MusicAlbum
  date published: 2025-09-28