Dave Kellner
type: MusicGroup
genre: lo-fi beats
popularity: 17
followers: 193
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1eb961ef3757bf25af852384a7a13eb81b247a0ee6b9e43261b8f3b3c897c730
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953645
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953645
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e127f50-da77-4808-a3f1-5d8dcb6ff9ce.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e127f50-da77-4808-a3f1-5d8dcb6ff9ce.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3e127f50-da77-4808-a3f1-5d8dcb6ff9ce
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T14:31:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1eb961ef3757bf25af852384a7a13eb81b247a0ee6b9e43261b8f3b3c897c730","name":"Dave Kellner","registered_at":"2026-06-14T10:57:39Z","symbol":"NIM0431363","token_address":"0xed33a150abd88f13446c98e19c752e59a3a8d40b","type":"artist","uuid":"3e127f50-da77-4808-a3f1-5d8dcb6ff9ce"}
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 0x1eb961ef3757bf25af852384a7a13eb81b247a0ee6b9e43261b8f3b3c897c730. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e127f50-da77-4808-a3f1-5d8dcb6ff9ce.json and https://artists.proofprofile.net/proofs/artist/3e127f50-da77-4808-a3f1-5d8dcb6ff9ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T14:31:42Z
  text: {"copyright_id":"0x1eb961ef3757bf25af852384a7a13eb81b247a0ee6b9e43261b8f3b3c897c730","name":"Dave Kellner","registered_at":"2026-06-14T10:57:39Z","symbol":"NIM0431363","token_address":"0xed33a150abd88f13446c98e19c752e59a3a8d40b","type":"artist","uuid":"3e127f50-da77-4808-a3f1-5d8dcb6ff9ce"}
album: Better Off
  type: MusicAlbum
  date published: 2017-10-13
album: Liquid
  type: MusicAlbum
  date published: 2017-10-14
album: Branchline
  type: MusicAlbum
  date published: 2021-01-29