JOHN KANE
type: MusicGroup
description: John Kane may refer to: Entertainment John Kane (actor) (1746–1799), Irish actor and comedian John Kane (artist) (1860–1934), Scottish-born American painter John Kane (writer) (born 1945), British
popularity: 6
followers: 108
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xecc1a3716c00b9c28da34a47b403e1cceb3255ce703cab2bb0ea1dfdbb88de4a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de40d5c9-4806-4745-b6aa-14dc1cbd5c9f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de40d5c9-4806-4745-b6aa-14dc1cbd5c9f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/de40d5c9-4806-4745-b6aa-14dc1cbd5c9f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xecc1a3716c00b9c28da34a47b403e1cceb3255ce703cab2bb0ea1dfdbb88de4a","name":"JOHN KANE","registered_at":"2026-06-21T05:54:07Z","symbol":"NIM1836405","token_address":"0xb054ffe99a05200dcbd2e81204cb71c8e95e3cd4","type":"artist","uuid":"de40d5c9-4806-4745-b6aa-14dc1cbd5c9f"}
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 0xecc1a3716c00b9c28da34a47b403e1cceb3255ce703cab2bb0ea1dfdbb88de4a. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de40d5c9-4806-4745-b6aa-14dc1cbd5c9f.json and https://artists.proofprofile.net/proofs/artist/de40d5c9-4806-4745-b6aa-14dc1cbd5c9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xecc1a3716c00b9c28da34a47b403e1cceb3255ce703cab2bb0ea1dfdbb88de4a","name":"JOHN KANE","registered_at":"2026-06-21T05:54:07Z","symbol":"NIM1836405","token_address":"0xb054ffe99a05200dcbd2e81204cb71c8e95e3cd4","type":"artist","uuid":"de40d5c9-4806-4745-b6aa-14dc1cbd5c9f"}