Keef archives
type: MusicGroup
popularity: 2
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd9f00a9750b4c0438683ecc98f7256de79798a51772889e2ad60dfbd27a22275
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce016a56-4749-4f97-952d-fbba7e2f6df5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce016a56-4749-4f97-952d-fbba7e2f6df5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ce016a56-4749-4f97-952d-fbba7e2f6df5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd9f00a9750b4c0438683ecc98f7256de79798a51772889e2ad60dfbd27a22275","name":"Keef archives","registered_at":"2026-06-21T00:02:54Z","symbol":"NIM1757352","token_address":"0x19cb169aec2141299903de548fb86e2a7b7a893f","type":"artist","uuid":"ce016a56-4749-4f97-952d-fbba7e2f6df5"}
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 0xd9f00a9750b4c0438683ecc98f7256de79798a51772889e2ad60dfbd27a22275. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce016a56-4749-4f97-952d-fbba7e2f6df5.json and https://artists.proofprofile.net/proofs/artist/ce016a56-4749-4f97-952d-fbba7e2f6df5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0xd9f00a9750b4c0438683ecc98f7256de79798a51772889e2ad60dfbd27a22275","name":"Keef archives","registered_at":"2026-06-21T00:02:54Z","symbol":"NIM1757352","token_address":"0x19cb169aec2141299903de548fb86e2a7b7a893f","type":"artist","uuid":"ce016a56-4749-4f97-952d-fbba7e2f6df5"}
album: keefkidsK
  type: MusicAlbum
  date published: 2024-05-25
album: 3
  type: MusicAlbum
  date published: 2024-08-19
album: Lost Files
  type: MusicAlbum
  date published: 2024-08-20
album: Lost Files 2
  type: MusicAlbum
  date published: 2024-10-20
  track: Devastated
    type: MusicRecording
    duration: PT1M46S
    duration ms: 106294
    explicit: true
    by artist: Keef archives
    in album: Lost Files 2
      type: MusicAlbum
      date published: 2024-10-20
    isrc code: QM42K2405716
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T15:15:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x87dbff529fa36d4efc52547f7927c497d3674f0b2bfef009335dac729e26e88f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958746
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958746
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM42K2405716
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T18:17:29Z
    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 0x87dbff529fa36d4efc52547f7927c497d3674f0b2bfef009335dac729e26e88f. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:17:29Z), 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/QM42K2405716.
      date published: 2026-07-19T18:17:29Z
    audio: Devastated
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 142.255
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.402
      additional property: Energy
        type: PropertyValue
        value: 0.662
      additional property: Speechiness
        type: PropertyValue
        value: 0.059
      additional property: Acousticness
        type: PropertyValue
        value: 0.027
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.133
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.362
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.587
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor