The Grandmaster
type: MusicGroup
genre: album rock
genre: arena rock
genre: melodic metal
genre: power metal
popularity: 9
followers: 2887
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x535b84a88e370b574729dbf0c5e747abf7bb3d0a3312248271cdf4c07189f803
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/8ad633b5-bf75-4461-9f76-68fde8b9db24.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8ad633b5-bf75-4461-9f76-68fde8b9db24.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8ad633b5-bf75-4461-9f76-68fde8b9db24
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x535b84a88e370b574729dbf0c5e747abf7bb3d0a3312248271cdf4c07189f803","name":"The Grandmaster","registered_at":"2026-06-17T14:10:00Z","symbol":"NIM1419730","token_address":"0x14444b4866d34b717b8546c86ce0a8620ea1eb50","type":"artist","uuid":"8ad633b5-bf75-4461-9f76-68fde8b9db24"}
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 0x535b84a88e370b574729dbf0c5e747abf7bb3d0a3312248271cdf4c07189f803. 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/8ad633b5-bf75-4461-9f76-68fde8b9db24.json and https://artists.proofprofile.net/proofs/artist/8ad633b5-bf75-4461-9f76-68fde8b9db24.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x535b84a88e370b574729dbf0c5e747abf7bb3d0a3312248271cdf4c07189f803","name":"The Grandmaster","registered_at":"2026-06-17T14:10:00Z","symbol":"NIM1419730","token_address":"0x14444b4866d34b717b8546c86ce0a8620ea1eb50","type":"artist","uuid":"8ad633b5-bf75-4461-9f76-68fde8b9db24"}
album: Someday Somehow
  type: MusicAlbum
  date published: 2021-08-02
album: The Tempest
  type: MusicAlbum
  date published: 2021-08-24
album: Lunar Water
  type: MusicAlbum
  date published: 2021-09-23
album: Skywards
  type: MusicAlbum
  date published: 2021-10-15
album: Watching The End
  type: MusicAlbum
  date published: 2023-11-06
album: While The Sun Goes Down
  type: MusicAlbum
  date published: 2023-12-04
album: Black Sun
  type: MusicAlbum
  date published: 2024-01-12
  track: Black Sun
    type: MusicRecording
    duration: PT4M57S
    duration ms: 297998
    explicit: false
    by artist: The Grandmaster
    in album: Black Sun
      type: MusicAlbum
      date published: 2024-01-12
    genre: album rock
    genre: arena rock
    genre: melodic metal
    genre: power metal
    isrc code: ITG272400030
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T21:44:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1e906a11e2ef291cb9dcca70d00fafaea5591fd478a3c6ab414c6fbb022e74a3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITG272400030
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0x1e906a11e2ef291cb9dcca70d00fafaea5591fd478a3c6ab414c6fbb022e74a3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITG272400030 — a six-check JSON result.
      date published: 2026-07-06T01:25:57Z
    audio: Black Sun
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 143.988
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.416
      additional property: Energy
        type: PropertyValue
        value: 0.938
      additional property: Speechiness
        type: PropertyValue
        value: 0.08
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.657
      additional property: Liveness
        type: PropertyValue
        value: 0.275
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.164
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.118
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor