DJ Cosm
type: MusicGroup
genre: boom bap
genre: underground hip hop
popularity: 3
followers: 344
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x87b25cf73ba980b74db206e65ad6faecf0449fffb55bfae63eb0d0be677733a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954573
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954573
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b446730f-e02d-4b3d-9acb-449ffc47c6dd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b446730f-e02d-4b3d-9acb-449ffc47c6dd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b446730f-e02d-4b3d-9acb-449ffc47c6dd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T15:45:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x87b25cf73ba980b74db206e65ad6faecf0449fffb55bfae63eb0d0be677733a5","name":"DJ Cosm","registered_at":"2026-06-20T13:37:43Z","symbol":"NIM1623173","token_address":"0x2f0fd368f9d8ea569570293ebce5febf6d1966fa","type":"artist","uuid":"b446730f-e02d-4b3d-9acb-449ffc47c6dd"}
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 0x87b25cf73ba980b74db206e65ad6faecf0449fffb55bfae63eb0d0be677733a5. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b446730f-e02d-4b3d-9acb-449ffc47c6dd.json and https://artists.proofprofile.net/proofs/artist/b446730f-e02d-4b3d-9acb-449ffc47c6dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T15:45:29Z
  text: {"copyright_id":"0x87b25cf73ba980b74db206e65ad6faecf0449fffb55bfae63eb0d0be677733a5","name":"DJ Cosm","registered_at":"2026-06-20T13:37:43Z","symbol":"NIM1623173","token_address":"0x2f0fd368f9d8ea569570293ebce5febf6d1966fa","type":"artist","uuid":"b446730f-e02d-4b3d-9acb-449ffc47c6dd"}
album: Rules
  type: MusicAlbum
  date published: 2020-07-03
album: All or Nothing
  type: MusicAlbum
  date published: 2020-08-04
album: Rome
  type: MusicAlbum
  date published: 2020-12-02
album: Natural Within
  type: MusicAlbum
  date published: 2021-01-01
  track: Leave the Bells
    type: MusicRecording
    duration: PT3M16S
    duration ms: 196276
    explicit: true
    by artist: DJ Cosm
    in album: Natural Within
      type: MusicAlbum
      date published: 2021-01-01
    genre: boom bap
    genre: underground hip hop
    isrc code: USX9P2046287
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-27T01:06:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x93e7ec3723a3b85b9a7cc168b1ebf2f1b206530566e5e7fc898bf03054f5ec44
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956304
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956304
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX9P2046287
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:55:08Z
    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 0x93e7ec3723a3b85b9a7cc168b1ebf2f1b206530566e5e7fc898bf03054f5ec44. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USX9P2046287.
      date published: 2026-07-02T03:55:08Z
    audio: Leave the Bells
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 116.74
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.671
      additional property: Energy
        type: PropertyValue
        value: 0.86
      additional property: Speechiness
        type: PropertyValue
        value: 0.078
      additional property: Acousticness
        type: PropertyValue
        value: 0.15
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.187
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.884
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.338
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor