380 Kaco
type: MusicGroup
popularity: 7
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x345558ee3bf89935f0a6ccbd565402a48f3cf6fcff42e2eb356d22c668d0013c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf5f1167-39de-4ecc-925f-14d5fb28a30d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf5f1167-39de-4ecc-925f-14d5fb28a30d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bf5f1167-39de-4ecc-925f-14d5fb28a30d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x345558ee3bf89935f0a6ccbd565402a48f3cf6fcff42e2eb356d22c668d0013c","name":"380 Kaco","registered_at":"2026-06-20T18:47:07Z","symbol":"NIM1680821","token_address":"0x15f468d29fe7ddd1019d81d098d1c0b35fd99c31","type":"artist","uuid":"bf5f1167-39de-4ecc-925f-14d5fb28a30d"}
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 0x345558ee3bf89935f0a6ccbd565402a48f3cf6fcff42e2eb356d22c668d0013c. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf5f1167-39de-4ecc-925f-14d5fb28a30d.json and https://artists.proofprofile.net/proofs/artist/bf5f1167-39de-4ecc-925f-14d5fb28a30d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x345558ee3bf89935f0a6ccbd565402a48f3cf6fcff42e2eb356d22c668d0013c","name":"380 Kaco","registered_at":"2026-06-20T18:47:07Z","symbol":"NIM1680821","token_address":"0x15f468d29fe7ddd1019d81d098d1c0b35fd99c31","type":"artist","uuid":"bf5f1167-39de-4ecc-925f-14d5fb28a30d"}
album: GET SUM HAPNIN
  type: MusicAlbum
  date published: 2025-04-09
album: CRASH OUT
  type: MusicAlbum
  date published: 2025-05-12
  track: CRASH OUT
    type: MusicRecording
    duration: PT1M52S
    duration ms: 112326
    explicit: true
    by artist: 380 Kaco
    in album: CRASH OUT
      type: MusicAlbum
      date published: 2025-05-12
    isrc code: NL9KR2502316
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T12:31:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1b8f63502af50937f21ce94b424a2b9d4e15dad3b513c9ba99cac6438aa1b354
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958300
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958300
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL9KR2502316
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T16:14:30Z
    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 0x1b8f63502af50937f21ce94b424a2b9d4e15dad3b513c9ba99cac6438aa1b354. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NL9KR2502316.
      date published: 2026-07-16T16:14:30Z
    audio: CRASH OUT
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.978
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.581
      additional property: Energy
        type: PropertyValue
        value: 0.756
      additional property: Speechiness
        type: PropertyValue
        value: 0.145
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.488
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.445
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.299
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: NO ATTACHMENTS
  type: MusicAlbum
  date published: 2025-05-12
album: CLOCKWORK
  type: MusicAlbum
  date published: 2025-05-15
album: RUNNIN OUTTA LOVE
  type: MusicAlbum
  date published: 2025-05-31