Culture Musical Club
type: MusicGroup
genre: traditional music
genre: tropical music
description: Culture Musical Club is an East African musical band based in Stone Town, Zanzibar. Regarded as one of the island's oldest and well-known musical ensembles, it has been known both for preserving and i
popularity: 6
followers: 1475
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additional property: OTSVerifyInstructions
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  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 0x7f9b855f914098cb3ae5e586ea00787e7af46128126873efeac865eacf6efa0e. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b26ec9d0-fbe2-4e6f-9bd1-01711d079de6.json and https://artists.proofprofile.net/proofs/artist/b26ec9d0-fbe2-4e6f-9bd1-01711d079de6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
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album: Taarab 4
  type: MusicAlbum
  date published: 1989-05-30
album: Taarab 4
  type: MusicAlbum
  date published: 1989-07-31
  track: Subalkheri Mpenzi
    type: MusicRecording
    duration: PT3M45S
    duration ms: 225306
    explicit: false
    by artist: Culture Musical Club
    in album: Taarab 4
      type: MusicAlbum
      date published: 1989-07-31
    genre: traditional music
    genre: tropical music
    isrc code: GBBHN8900050
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    additional property: OTSTimestamp
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    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 0xa9c57cf68b90cbb8eae2ea424f718628dc2fc18ac3016b9756ef88bd55c9cd27. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GBBHN8900050.
      date published: 2026-07-21T00:24:07Z
    audio: Subalkheri Mpenzi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
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      additional property: Musical Key
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.704
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.51
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
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  track: Sasa Sinaye
    type: MusicRecording
    duration: PT4M20S
    duration ms: 260733
    explicit: false
    by artist: Culture Musical Club
    in album: Taarab 4
      type: MusicAlbum
      date published: 1989-07-31
    genre: traditional music
    genre: tropical music
    isrc code: GBBHN8900053
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      value: 2026-07-21T06:27:23Z
    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3e7184ed3d3f401ea91292900cd8a82df022809ae5cd64de655379e3a3b6d0. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/GBBHN8900053.
      date published: 2026-07-21T06:27:23Z
    audio: Sasa Sinaye
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.479
      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: 0.359
      additional property: Energy
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      additional property: Speechiness
        type: PropertyValue
        value: 0.058
      additional property: Acousticness
        type: PropertyValue
        value: 0.691
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Shime!

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.597

Valence (Positivity)
type: PropertyValue
value: 0.771

Loudness (dB)
type: PropertyValue
value: -7.109

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Minor

Taarab 4
type: MusicAlbum
date published: 2008-07-07

Taarab 4
type: MusicAlbum
date published: 2008-07-07

Shime!
type: MusicAlbum
date published: 2009-04-14

Shime!
type: MusicAlbum
date published: 2009-04-14