MASS 187
type: MusicGroup
popularity: 3
followers: 313
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa08498de2fc28c110872144f94db4aea0da3f44127b0f41d98b8bca0c72a566a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954020
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954020
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37f323a4-ccfc-4fae-92c0-afd9e089bf05.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37f323a4-ccfc-4fae-92c0-afd9e089bf05.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/37f323a4-ccfc-4fae-92c0-afd9e089bf05
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa08498de2fc28c110872144f94db4aea0da3f44127b0f41d98b8bca0c72a566a","name":"MASS 187","registered_at":"2026-06-16T09:01:24Z","symbol":"NIM1002670","token_address":"0x1c528a384a6b54eb31e2fd3653e353e7704b0455","type":"artist","uuid":"37f323a4-ccfc-4fae-92c0-afd9e089bf05"}
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 0xa08498de2fc28c110872144f94db4aea0da3f44127b0f41d98b8bca0c72a566a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37f323a4-ccfc-4fae-92c0-afd9e089bf05.json and https://artists.proofprofile.net/proofs/artist/37f323a4-ccfc-4fae-92c0-afd9e089bf05.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xa08498de2fc28c110872144f94db4aea0da3f44127b0f41d98b8bca0c72a566a","name":"MASS 187","registered_at":"2026-06-16T09:01:24Z","symbol":"NIM1002670","token_address":"0x1c528a384a6b54eb31e2fd3653e353e7704b0455","type":"artist","uuid":"37f323a4-ccfc-4fae-92c0-afd9e089bf05"}
album: LOVE & HEARTBREAKZ
  type: MusicAlbum
  date published: 2022-03-12
album: Brown Paper Bag
  type: MusicAlbum
  date published: 2023-07-14
album: KANGAROO
  type: MusicAlbum
  date published: 2023-12-13
  track: KANGAROO
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179515
    explicit: false
    by artist: MASS 187
    in album: KANGAROO
      type: MusicAlbum
      date published: 2023-12-13
    isrc code: QZWFN2313286
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T00:29:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd0ef17d859a11f0e5bac9ae0a4235d4f86a69e11e4ce5102be5c93358d5762c2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFN2313286
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0xd0ef17d859a11f0e5bac9ae0a4235d4f86a69e11e4ce5102be5c93358d5762c2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWFN2313286.
      date published: 2026-07-04T11:19:20Z
    audio: KANGAROO
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 80.045
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.806
      additional property: Energy
        type: PropertyValue
        value: 0.576
      additional property: Speechiness
        type: PropertyValue
        value: 0.359
      additional property: Acousticness
        type: PropertyValue
        value: 0.439
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.159
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.549
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.325
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Fuck Nigga
  type: MusicAlbum
  date published: 2023-12-20
album: Numa Deff
  type: MusicAlbum
  date published: 2023-12-20
album: Player
  type: MusicAlbum
  date published: 2024-05-16
album: OH I SEE
  type: MusicAlbum
  date published: 2024-05-17
album: Dekah Bangi Maytii
  type: MusicAlbum
  date published: 2024-07-06
album: Kodo Yeh Dunya Faling
  type: MusicAlbum
  date published: 2024-07-21
album: MAMA LOVE
  type: MusicAlbum
  date published: 2025-01-06
album: Love or Game
  type: MusicAlbum
  date published: 2025-07-17
album: Cry Gambia
  type: MusicAlbum
  date published: 2025-10-31
album: Win
  type: MusicAlbum
  date published: 2025-10-31