John Hendrik
type: MusicGroup
popularity: 2
followers: 168
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1ede33411e67d0d875fa8458e240bda176754ec8d02a70ba9bccee6000e3534d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5ec94ad-ab5f-4df3-9ca0-20bfa557af10.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5ec94ad-ab5f-4df3-9ca0-20bfa557af10.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b5ec94ad-ab5f-4df3-9ca0-20bfa557af10
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1ede33411e67d0d875fa8458e240bda176754ec8d02a70ba9bccee6000e3534d","name":"John Hendrik","registered_at":"2026-06-20T14:29:38Z","symbol":"NIM1634088","token_address":"0xb6106d96dd9cd5b376505031d856cb48d181461a","type":"artist","uuid":"b5ec94ad-ab5f-4df3-9ca0-20bfa557af10"}
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 0x1ede33411e67d0d875fa8458e240bda176754ec8d02a70ba9bccee6000e3534d. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5ec94ad-ab5f-4df3-9ca0-20bfa557af10.json and https://artists.proofprofile.net/proofs/artist/b5ec94ad-ab5f-4df3-9ca0-20bfa557af10.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0x1ede33411e67d0d875fa8458e240bda176754ec8d02a70ba9bccee6000e3534d","name":"John Hendrik","registered_at":"2026-06-20T14:29:38Z","symbol":"NIM1634088","token_address":"0xb6106d96dd9cd5b376505031d856cb48d181461a","type":"artist","uuid":"b5ec94ad-ab5f-4df3-9ca0-20bfa557af10"}
album: Léhar: Der Zarewitsch (Querschnitt)
  type: MusicAlbum
  date published: 2014-12-05
track: Küss mich, und morgen vergiss mich
  type: MusicRecording
  duration: PT2M41S
  duration ms: 161825
  explicit: false
  by artist: Rudolf Nelson
  by artist: Columbia Dance Orchestra
  by artist: John Hendrik
  by artist: Otto Dobrindt
  in album: Schellack Schätze: Treasures on 78 RPM from Berlin, Europe and the World, Vol. 15 (Remastered 2018)
    type: MusicAlbum
    date published: 2018-11-16
  popularity: 3
  isrc code: DEL111801289
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T02:43:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8a08b6ae7aff058fbc7f614c3a6a49acf94ca17bf9c0990e39c2a18777731ebf
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL111801289
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  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 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 0x8a08b6ae7aff058fbc7f614c3a6a49acf94ca17bf9c0990e39c2a18777731ebf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEL111801289.
    date published: 2026-07-08T03:53:27Z
  audio: Küss mich, und morgen vergiss mich
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 133.166
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.8
    additional property: Energy
      type: PropertyValue
      value: 0.505
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.984
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.194
    additional property: Liveness
      type: PropertyValue
      value: 0.136
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.887
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.127
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major