Dudu King
type: MusicGroup
genre: chinese hip hop
popularity: 5
followers: 1128
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9c4a93df9d0164e07aae26f49f7e73a4603ecdf912b5d31c7210a6f19cc2902
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9d2fa20-30f4-48e8-a939-6d024837f63a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9d2fa20-30f4-48e8-a939-6d024837f63a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d9d2fa20-30f4-48e8-a939-6d024837f63a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa9c4a93df9d0164e07aae26f49f7e73a4603ecdf912b5d31c7210a6f19cc2902","name":"Dudu King","registered_at":"2026-06-21T04:14:26Z","symbol":"NIM1816402","token_address":"0x930274babcc5429a312b5c673a9d620211224bcd","type":"artist","uuid":"d9d2fa20-30f4-48e8-a939-6d024837f63a"}
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 0xa9c4a93df9d0164e07aae26f49f7e73a4603ecdf912b5d31c7210a6f19cc2902. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9d2fa20-30f4-48e8-a939-6d024837f63a.json and https://artists.proofprofile.net/proofs/artist/d9d2fa20-30f4-48e8-a939-6d024837f63a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0xa9c4a93df9d0164e07aae26f49f7e73a4603ecdf912b5d31c7210a6f19cc2902","name":"Dudu King","registered_at":"2026-06-21T04:14:26Z","symbol":"NIM1816402","token_address":"0x930274babcc5429a312b5c673a9d620211224bcd","type":"artist","uuid":"d9d2fa20-30f4-48e8-a939-6d024837f63a"}
album: 龍虎門 RAP N' ROLL - Vol.02
  type: MusicAlbum
  date published: 2018-11-09
  track: 燙口貨
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217765
    explicit: false
    by artist: Dudu King
    in album: 龍虎門 RAP N' ROLL - Vol.02
      type: MusicAlbum
      date published: 2018-11-09
    genre: chinese hip hop
    isrc code: TWCC31803066
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T03:26:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbe62c008998b7cbeba28bcb8ade71b74b6df03d5aab8fd94fa61873e39703297
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958234
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958234
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWCC31803066
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T03:46:09Z
    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 0xbe62c008998b7cbeba28bcb8ade71b74b6df03d5aab8fd94fa61873e39703297. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TWCC31803066.
      date published: 2026-07-16T03:46:09Z
    audio: 燙口貨
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.182
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.706
      additional property: Energy
        type: PropertyValue
        value: 0.846
      additional property: Speechiness
        type: PropertyValue
        value: 0.26
      additional property: Acousticness
        type: PropertyValue
        value: 0.328
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.081
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.529
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.009
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 龍虎門 RAP N' ROLL - Vol.02
  type: MusicAlbum
  date published: 2018-11-09
album: 龍虎門 RAP N' ROLL Vol.08 - Make It Happen
  type: MusicAlbum
  date published: 2019-02-22
  track: 龍虎門 RAP N' ROLL Vol.08 - Make It Happen
    type: MusicRecording
    duration: PT4M24S
    duration ms: 264140
    explicit: false
    by artist: Dudu King
    in album: 龍虎門 RAP N' ROLL Vol.08 - Make It Happen
      type: MusicAlbum
      date published: 2019-02-22
    genre: chinese hip hop
    isrc code: TWCC31900238
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T17:48:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x14c67fbd51794d41ea79d9ef170ac959329bf6beb970e789fcbaf89996c65023
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960448
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960448
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWCC31900238
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T18:48:12Z
    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 0x14c67fbd51794d41ea79d9ef170ac959329bf6beb970e789fcbaf89996c65023. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/TWCC31900238.
      date published: 2026-07-31T18:48:12Z
    audio: 龍虎門 RAP N' ROLL Vol.08 - Make It Happen
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.584
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.754
      additional property: Energy
        type: PropertyValue
        value: 0.583
      additional property: Speechiness
        type: PropertyValue
        value: 0.111
      additional property: Acousticness
        type: PropertyValue
        value: 0.217
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Liveness
type: PropertyValue
value: 0.074

Valence (Positivity)
type: PropertyValue
value: 0.614

Loudness (dB)
type: PropertyValue
value: -10.815

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor