Felix Katz
type: MusicGroup
popularity: 3
followers: 132
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc7e8995eff70313a0bcd53d48871443a78ecd00d04635b9f7ae2d48d5a214f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e15081e-447e-46f7-a537-cd1930582900.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e15081e-447e-46f7-a537-cd1930582900.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7e15081e-447e-46f7-a537-cd1930582900
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcc7e8995eff70313a0bcd53d48871443a78ecd00d04635b9f7ae2d48d5a214f6","name":"Felix Katz","registered_at":"2026-06-17T09:32:05Z","symbol":"NIM1353525","token_address":"0x8be677d63e4b07e9ceb5072f0dfe3ab2a5cd3e1c","type":"artist","uuid":"7e15081e-447e-46f7-a537-cd1930582900"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7e8995eff70313a0bcd53d48871443a78ecd00d04635b9f7ae2d48d5a214f6. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e15081e-447e-46f7-a537-cd1930582900.json and https://artists.proofprofile.net/proofs/artist/7e15081e-447e-46f7-a537-cd1930582900.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-18T03:01:36Z
  text: {"copyright_id":"0xcc7e8995eff70313a0bcd53d48871443a78ecd00d04635b9f7ae2d48d5a214f6","name":"Felix Katz","registered_at":"2026-06-17T09:32:05Z","symbol":"NIM1353525","token_address":"0x8be677d63e4b07e9ceb5072f0dfe3ab2a5cd3e1c","type":"artist","uuid":"7e15081e-447e-46f7-a537-cd1930582900"}
album: 427
  type: MusicAlbum
  date published: 2023-02-04
album: Vandaag en Nu
  type: MusicAlbum
  date published: 2023-03-13
album: Check de Reim
  type: MusicAlbum
  date published: 2023-03-27
album: 427
  type: MusicAlbum
  date published: 2023-04-27