Smokestack Crew
type: MusicGroup
popularity: 9
followers: 236
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x99ffb83e5449979bf43dc7bdb1ab1c941abe9f5f0b148ba857768001bbff5347
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953895
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953895
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0f181553-d469-40dc-ade5-71a65fe3fd6f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0f181553-d469-40dc-ade5-71a65fe3fd6f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0f181553-d469-40dc-ade5-71a65fe3fd6f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T05:46:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x99ffb83e5449979bf43dc7bdb1ab1c941abe9f5f0b148ba857768001bbff5347","name":"Smokestack Crew","registered_at":"2026-06-15T18:52:23Z","symbol":"NIM0799988","token_address":"0xa13a8f8b62afb633250304b268293191fc2a9e80","type":"artist","uuid":"0f181553-d469-40dc-ade5-71a65fe3fd6f"}
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 0x99ffb83e5449979bf43dc7bdb1ab1c941abe9f5f0b148ba857768001bbff5347. Chain 2 (Bitcoin): anchored in block 953895 (2026-06-16T05:46:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f181553-d469-40dc-ade5-71a65fe3fd6f.json and https://artists.proofprofile.net/proofs/artist/0f181553-d469-40dc-ade5-71a65fe3fd6f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T05:46:35Z
  text: {"copyright_id":"0x99ffb83e5449979bf43dc7bdb1ab1c941abe9f5f0b148ba857768001bbff5347","name":"Smokestack Crew","registered_at":"2026-06-15T18:52:23Z","symbol":"NIM0799988","token_address":"0xa13a8f8b62afb633250304b268293191fc2a9e80","type":"artist","uuid":"0f181553-d469-40dc-ade5-71a65fe3fd6f"}
album: Laurence of Alabia
  type: MusicAlbum
  date published: 2012-07-20
album: Dongthology, Vol. 3.
  type: MusicAlbum
  date published: 2013-05-06
album: Dongthology, Vol. 2.
  type: MusicAlbum
  date published: 2013-05-06
album: Dongthology, Vol. 1.
  type: MusicAlbum
  date published: 2013-05-06
album: The Vagitarian
  type: MusicAlbum
  date published: 2014-06-16
album: Dongthology, Vol. 4.
  type: MusicAlbum
  date published: 2015-06-01
  track: I'll Hit You With My Cum Shot
    type: MusicRecording
    duration: PT2M38S
    duration ms: 158917
    explicit: true
    by artist: Smokestack Crew
    in album: Dongthology, Vol. 4.
      type: MusicAlbum
      date published: 2015-06-01
    isrc code: TCACG1506061
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-29T07:40:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd43e55c2a0ed1e999a4c706b5f1a42aa1376449a06a7591569eaa40fbf02ae79
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956375
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACG1506061
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    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 0xd43e55c2a0ed1e999a4c706b5f1a42aa1376449a06a7591569eaa40fbf02ae79. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACG1506061 — a six-check JSON result.
      date published: 2026-07-02T16:51:38Z
    audio: I'll Hit You With My Cum Shot
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.036
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.747
      additional property: Energy
        type: PropertyValue
        value: 0.712
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.142
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.195
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.924
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.571
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Blame It on the Wang
  type: MusicAlbum
  date published: 2017-01-31
  track: Wicked Wang
    type: MusicRecording
    duration: PT3M20S
    duration ms: 200620
    explicit: true
    by artist: Smokestack Crew
    in album: Blame It on the Wang
      type: MusicAlbum
      date published: 2017-01-31
    isrc code: TCACW1740238
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T16:27:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf72d3fbec42b544e7f56255e0781d18e6a954487eabf201679b90dfc553dfb80
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958582
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958582
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACW1740238
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T16:47:25Z
    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 0xf72d3fbec42b544e7f56255e0781d18e6a954487eabf201679b90dfc553dfb80. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/TCACW1740238 — a six-check JSON result.
      date published: 2026-07-18T16:47:25Z
    audio: Wicked Wang
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.393
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.592
      additional property: Energy
        type: PropertyValue
        value: 0.55
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Speechiness
type: PropertyValue
value: 0.029

Acousticness
type: PropertyValue
value: 0.714

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.185

Valence (Positivity)
type: PropertyValue
value: 0.413

Loudness (dB)
type: PropertyValue
value: -8.502

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major