Madd Da Don
type: MusicGroup
popularity: 5
followers: 514
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4b2158a106dd5e1487058ad13a2277d970e53897042a0e08b7f4906b2cdbb8c9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9e91e95c-4a1e-460f-b93a-0c0a5826dff7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9e91e95c-4a1e-460f-b93a-0c0a5826dff7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9e91e95c-4a1e-460f-b93a-0c0a5826dff7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4b2158a106dd5e1487058ad13a2277d970e53897042a0e08b7f4906b2cdbb8c9","name":"Madd Da Don","registered_at":"2026-06-20T04:31:26Z","symbol":"NIM1516407","token_address":"0x8eb893364999eab44392683e24e6cebd5669f735","type":"artist","uuid":"9e91e95c-4a1e-460f-b93a-0c0a5826dff7"}
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 0x4b2158a106dd5e1487058ad13a2277d970e53897042a0e08b7f4906b2cdbb8c9. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e91e95c-4a1e-460f-b93a-0c0a5826dff7.json and https://artists.proofprofile.net/proofs/artist/9e91e95c-4a1e-460f-b93a-0c0a5826dff7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0x4b2158a106dd5e1487058ad13a2277d970e53897042a0e08b7f4906b2cdbb8c9","name":"Madd Da Don","registered_at":"2026-06-20T04:31:26Z","symbol":"NIM1516407","token_address":"0x8eb893364999eab44392683e24e6cebd5669f735","type":"artist","uuid":"9e91e95c-4a1e-460f-b93a-0c0a5826dff7"}
album: Invision
  type: MusicAlbum
  date published: 2020-02-07
album: Lit
  type: MusicAlbum
  date published: 2021-07-23
album: Tear
  type: MusicAlbum
  date published: 2021-08-06
album: Where's da Bud
  type: MusicAlbum
  date published: 2021-11-19
album: Reelz
  type: MusicAlbum
  date published: 2022-02-18
album: Art Imitates Reality
  type: MusicAlbum
  date published: 2024-03-22
album: Hyper
  type: MusicAlbum
  date published: 2025-09-05
  track: Hyper
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179912
    explicit: true
    by artist: Madd Da Don
    in album: Hyper
      type: MusicAlbum
      date published: 2025-09-05
    isrc code: TCAKA2557184
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T07:53:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x491b93f22205c2bec7690726d5865c7ba00bba6daf7087705619627847c68dc5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAKA2557184
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 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 0x491b93f22205c2bec7690726d5865c7ba00bba6daf7087705619627847c68dc5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAKA2557184.
      date published: 2026-07-05T10:01:46Z
    audio: Hyper
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 146.046
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.822
      additional property: Energy
        type: PropertyValue
        value: 0.494
      additional property: Speechiness
        type: PropertyValue
        value: 0.225
      additional property: Acousticness
        type: PropertyValue
        value: 0.016
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.609
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.723
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major