John Arndt
type: MusicGroup
description: John Arndt may refer to: John Arndt (basketball) (1928–2021), American assistant (1960–1961) and head coach (1961–1968) of men's basketball at Loyola Marymount University Johann Arndt (1555–1621),
popularity: 9
followers: 636
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x19c3f1d41841cc2e4a68d9a6b133f65521d4fdbfa30e600b739196581599d3d4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3cf5f4d1-3cf3-4b2e-b203-7b504e797cde.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3cf5f4d1-3cf3-4b2e-b203-7b504e797cde.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3cf5f4d1-3cf3-4b2e-b203-7b504e797cde
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x19c3f1d41841cc2e4a68d9a6b133f65521d4fdbfa30e600b739196581599d3d4","name":"John Arndt","registered_at":"2026-06-16T10:48:57Z","symbol":"NIM1028334","token_address":"0x8a90a19ef93daf5089294faf693be5032c76ee08","type":"artist","uuid":"3cf5f4d1-3cf3-4b2e-b203-7b504e797cde"}
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 0x19c3f1d41841cc2e4a68d9a6b133f65521d4fdbfa30e600b739196581599d3d4. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3cf5f4d1-3cf3-4b2e-b203-7b504e797cde.json and https://artists.proofprofile.net/proofs/artist/3cf5f4d1-3cf3-4b2e-b203-7b504e797cde.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T02:39:28Z
  text: {"copyright_id":"0x19c3f1d41841cc2e4a68d9a6b133f65521d4fdbfa30e600b739196581599d3d4","name":"John Arndt","registered_at":"2026-06-16T10:48:57Z","symbol":"NIM1028334","token_address":"0x8a90a19ef93daf5089294faf693be5032c76ee08","type":"artist","uuid":"3cf5f4d1-3cf3-4b2e-b203-7b504e797cde"}
album: 20 Miniatures for Solo Piano
  type: MusicAlbum
  date published: 2013-05-24
album: At Peace / Apparition
  type: MusicAlbum
  date published: 2023-06-08
album: Insomnia / Streams
  type: MusicAlbum
  date published: 2023-07-20
album: Yonge Passage
  type: MusicAlbum
  date published: 2025-02-27