Chaz Jankel
type: MusicGroup
description: Charles Jeremy "Chaz" Jankel (born 16 April 1952) is an English musician and songwriter. In a music career spanning more than 50 years, he came to prominence in the late 1970s as the guitarist and key
popularity: 2
followers: 18
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xafd5d6d742b99f7b7059f9961e786e49e21c2e383535b2bd3dad4dc4c151c57f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8eb00bcb-4fb8-428a-943b-d656ba3079ed.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8eb00bcb-4fb8-428a-943b-d656ba3079ed.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8eb00bcb-4fb8-428a-943b-d656ba3079ed
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xafd5d6d742b99f7b7059f9961e786e49e21c2e383535b2bd3dad4dc4c151c57f","name":"Chaz Jankel","registered_at":"2026-06-17T15:23:19Z","symbol":"NIM1437226","token_address":"0xcfc38765584b99fa484521ba1a95178878b1d454","type":"artist","uuid":"8eb00bcb-4fb8-428a-943b-d656ba3079ed"}
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 0xafd5d6d742b99f7b7059f9961e786e49e21c2e383535b2bd3dad4dc4c151c57f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8eb00bcb-4fb8-428a-943b-d656ba3079ed.json and https://artists.proofprofile.net/proofs/artist/8eb00bcb-4fb8-428a-943b-d656ba3079ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xafd5d6d742b99f7b7059f9961e786e49e21c2e383535b2bd3dad4dc4c151c57f","name":"Chaz Jankel","registered_at":"2026-06-17T15:23:19Z","symbol":"NIM1437226","token_address":"0xcfc38765584b99fa484521ba1a95178878b1d454","type":"artist","uuid":"8eb00bcb-4fb8-428a-943b-d656ba3079ed"}
album: No. 1
  type: MusicAlbum
  date published: 1985-01-01
  track: No. 1
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222360
    explicit: false
    by artist: Chaz Jankel
    in album: No. 1
      type: MusicAlbum
      date published: 1985-01-01
    isrc code: QZNWR2367369
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T10:07:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4bb4ffcfbffe3dbb177a85edb6da3a8484ae02f28fbd4df622c4d238a94d4219
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958996
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958996
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWR2367369
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T13:05:00Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb4ffcfbffe3dbb177a85edb6da3a8484ae02f28fbd4df622c4d238a94d4219. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:05:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWR2367369.
      date published: 2026-07-21T13:05:00Z
    audio: No. 1
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.465
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.908
      additional property: Energy
        type: PropertyValue
        value: 0.773
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.093
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.06
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.99
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.643
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor