Black Market Brass
type: MusicGroup
genre: jazz funk
popularity: 19
followers: 5685
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb2d0d845b94e2e1613328f70d6595f1606b957bfec8c5779669e4f11c946cc. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a969b66-3f60-4aa0-962b-79994a818b84.json and https://artists.proofprofile.net/proofs/artist/3a969b66-3f60-4aa0-962b-79994a818b84.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T13:54:28Z
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album: Big Muffler B/W Snake Oil Man
  type: MusicAlbum
  date published: 2013-08-27
album: Big Muffler B/W Snake Oil Man
  type: MusicAlbum
  date published: 2013-10-01
album: Cheat and Start a Fight
  type: MusicAlbum
  date published: 2016-12-02
album: Cheat and Start a Fight
  type: MusicAlbum
  date published: 2016-12-02
album: War Room
  type: MusicAlbum
  date published: 2018-02-02
album: War Room
  type: MusicAlbum
  date published: 2018-02-02
album: War Room
  type: MusicAlbum
  date published: 2018-02-02
album: Undying Thirst
  type: MusicAlbum
  date published: 2018-12-07
album: N.B.T.
  type: MusicAlbum
  date published: 2020-02-18
album: Undying Thirst
  type: MusicAlbum
  date published: 2020-02-28
  track: War Room
    type: MusicRecording
    duration: PT4M29S
    duration ms: 269431
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    by artist: Black Market Brass
    in album: Undying Thirst
      type: MusicAlbum
      date published: 2020-02-28
    genre: jazz funk
    isrc code: QMBZ91707217
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T14:41:15Z
    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2dc1597875089451f019e7a6651fcd7f79ecd9fde7315d385000cd9b1a1de9. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QMBZ91707217.
      date published: 2026-07-13T14:41:15Z
    audio: War Room
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.478
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
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      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
        type: PropertyValue
        value: 0.504
      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
        value: 0.319
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.585
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.926
      additional property: Key Name
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        value: F
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album: Undying Thirst
  type: MusicAlbum
  date published: 2020-02-28
album: Omega
  type: MusicAlbum
  date published: 2020-10-02
album: Omega
  type: MusicAlbum
  date published: 2020-10-02
album: Omega
  type: MusicAlbum
  date published: 2020-10-02
album: Omega
  type: MusicAlbum
  date published: 2020-10-02
album: Chemical Plant Zone
  type: MusicAlbum
  date published: 2021-03-30
album: Chemical Plant Zone
  type: MusicAlbum
  date published: 2021-03-30
album: Maraka
  type: MusicAlbum
  date published: 2021-04-20
album: Sagat Theme
  type: MusicAlbum
  date published: 2021-05-25
album: Sagat Theme
  type: MusicAlbum
  date published: 2021-05-25
album: Rat Trap
  type: MusicAlbum
  date published: 2023-04-04
album: Rat Trap / Chop Bop
  type: MusicAlbum
  date published: 2023-05-17
album: The Pit
  type: MusicAlbum
  date published: 2023-07-11
album: Echo A.D.
  type: MusicAlbum
  date published: 2023-08-11
album: Hox
  type: MusicAlbum
  date published: 2023-09-08
album: Battle Ready
album: Battle Ready / What You Make It
album: If I Do My Own
album: If I Do My Own / I No Be (Colonizer)

Battle Ready
type: MusicAlbum
date published: 2025-03-18
track: Battle Ready
  type: MusicRecording
  duration: PT3M7S
  duration ms: 187089
  explicit: false
  by artist: Black Market Brass
  in album: Battle Ready
    type: MusicAlbum
    date published: 2025-03-18
  genre: jazz funk
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDMQ2550013
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T10:56:04Z
  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 0xb3de67cc833dbd5cd79121c25c046786e0542e5ab982313dac7a90ab99f0ff78. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:56:04Z), 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/QZDMQ2550013.
    date published: 2026-07-15T10:56:04Z
  audio: Battle Ready
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 133.28
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.47
    additional property: Energy
      type: PropertyValue
      value: 0.84
    additional property: Speechiness
      type: PropertyValue
      value: 0.065
    additional property: Acousticness
      type: PropertyValue
      value: 0.436
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.159
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.961
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.022
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Battle Ready / What You Make It
type: MusicAlbum
date published: 2025-05-02

If I Do My Own
type: MusicAlbum
date published: 2025-09-30

If I Do My Own / I No Be (Colonizer)
type: MusicAlbum
date published: 2025-11-14