M. John Henry
type: MusicGroup
popularity: 3
followers: 28
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcb8a40687045235e4727f6fd91f8cbcfefce27e8ee9dbdb0544dde65b6fe8f06
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5f9c4b18-4a50-48d6-b9d7-77229f754ccf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5f9c4b18-4a50-48d6-b9d7-77229f754ccf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5f9c4b18-4a50-48d6-b9d7-77229f754ccf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcb8a40687045235e4727f6fd91f8cbcfefce27e8ee9dbdb0544dde65b6fe8f06","name":"M. John Henry","registered_at":"2026-06-16T22:53:53Z","symbol":"NIM1201288","token_address":"0xeb164e6afde26c125ba8df89474862d132cb7173","type":"artist","uuid":"5f9c4b18-4a50-48d6-b9d7-77229f754ccf"}
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 0xcb8a40687045235e4727f6fd91f8cbcfefce27e8ee9dbdb0544dde65b6fe8f06. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f9c4b18-4a50-48d6-b9d7-77229f754ccf.json and https://artists.proofprofile.net/proofs/artist/5f9c4b18-4a50-48d6-b9d7-77229f754ccf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xcb8a40687045235e4727f6fd91f8cbcfefce27e8ee9dbdb0544dde65b6fe8f06","name":"M. John Henry","registered_at":"2026-06-16T22:53:53Z","symbol":"NIM1201288","token_address":"0xeb164e6afde26c125ba8df89474862d132cb7173","type":"artist","uuid":"5f9c4b18-4a50-48d6-b9d7-77229f754ccf"}
album: Heart Of Coal
  type: MusicAlbum
  date published: 2025-05-09
  track: Heart of Coal
    type: MusicRecording
    duration: PT3M30S
    duration ms: 210145
    explicit: false
    by artist: M. John Henry
    in album: Heart Of Coal
      type: MusicAlbum
      date published: 2025-05-09
    isrc code: GXCN42400003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T01:52:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9ced3e9049d7bab5e79f52e8bca8738f2d68ea91c1668247cf2ee75d8f536296
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956776
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956776
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXCN42400003
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T00:23:46Z
    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 0x9ced3e9049d7bab5e79f52e8bca8738f2d68ea91c1668247cf2ee75d8f536296. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-20T00:23:46Z), 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/GXCN42400003.
      date published: 2026-07-20T00:23:46Z
    audio: Heart of Coal
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.988
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.651
      additional property: Energy
        type: PropertyValue
        value: 0.673
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.261
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.219
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.61
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.328
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: You Show Me Ways
  type: MusicAlbum
  date published: 2025-06-06
album: Strange Is The Way
  type: MusicAlbum
  date published: 2025-06-20