I Smooth 7
type: MusicGroup
genre: g-funk
genre: west coast hip hop
popularity: 8
followers: 758
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9752b21cac003e5c082a8b04529212c45b43028d77bbdca58a099b8d5dc93186
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/818ef873-f7b5-4e96-baf6-a3e900ae8046.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/818ef873-f7b5-4e96-baf6-a3e900ae8046.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/818ef873-f7b5-4e96-baf6-a3e900ae8046
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9752b21cac003e5c082a8b04529212c45b43028d77bbdca58a099b8d5dc93186","name":"I Smooth 7","registered_at":"2026-06-17T10:49:41Z","symbol":"NIM1372027","token_address":"0x2d63fca473455c4afa38100613f02ab07af4c875","type":"artist","uuid":"818ef873-f7b5-4e96-baf6-a3e900ae8046"}
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 0x9752b21cac003e5c082a8b04529212c45b43028d77bbdca58a099b8d5dc93186. 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/818ef873-f7b5-4e96-baf6-a3e900ae8046.json and https://artists.proofprofile.net/proofs/artist/818ef873-f7b5-4e96-baf6-a3e900ae8046.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x9752b21cac003e5c082a8b04529212c45b43028d77bbdca58a099b8d5dc93186","name":"I Smooth 7","registered_at":"2026-06-17T10:49:41Z","symbol":"NIM1372027","token_address":"0x2d63fca473455c4afa38100613f02ab07af4c875","type":"artist","uuid":"818ef873-f7b5-4e96-baf6-a3e900ae8046"}
album: Ghetto Life
  type: MusicAlbum
  date published: 1995-08-22
  track: Coolin' In Da Ghetto
    type: MusicRecording
    duration: PT4M54S
    duration ms: 294266
    explicit: true
    by artist: I Smooth 7
    in album: Ghetto Life
      type: MusicAlbum
      date published: 1995-08-22
    genre: g-funk
    genre: west coast hip hop
    isrc code: US25X2002740
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T10:18:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3da89a92371282da8d05d2df57baedfc9a7c8d93e38c29431cd8251e76a578e2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957851
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957851
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US25X2002740
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T11:26:33Z
    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 0x3da89a92371282da8d05d2df57baedfc9a7c8d93e38c29431cd8251e76a578e2. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/US25X2002740.
      date published: 2026-07-13T11:26:33Z
    audio: Coolin' In Da Ghetto
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 168.307
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.681
      additional property: Energy
        type: PropertyValue
        value: 0.621
      additional property: Speechiness
        type: PropertyValue
        value: 0.317
      additional property: Acousticness
        type: PropertyValue
        value: 0.011
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.019
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.733
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.677
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Ghetto Life
  type: MusicAlbum
  date published: 1995-08-22