MVRK
type: MusicGroup
popularity: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x884ef81b016f71efd172abcc54cefa34f8ff72b00600a7d11d8e73e6ca6513b9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e102ab70-9348-406d-a7e3-2d5a9d1ea7ca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e102ab70-9348-406d-a7e3-2d5a9d1ea7ca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e102ab70-9348-406d-a7e3-2d5a9d1ea7ca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
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 0x884ef81b016f71efd172abcc54cefa34f8ff72b00600a7d11d8e73e6ca6513b9. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e102ab70-9348-406d-a7e3-2d5a9d1ea7ca.json and https://artists.proofprofile.net/proofs/artist/e102ab70-9348-406d-a7e3-2d5a9d1ea7ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: Cuidau
  type: MusicAlbum
  date published: 2024-03-26
  track: Cuidau
    type: MusicRecording
    duration: PT2M58S
    duration ms: 178285
    explicit: false
    by artist: MVRK
    in album: Cuidau
      type: MusicAlbum
      date published: 2024-03-26
    isrc code: GX8LD2437816
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T00:13:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x154618c5760449334eeaf58558421c98ee63fad3c896c7e7eb13561ce680e013
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958800
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958800
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LD2437816
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T03:11:00Z
    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 0x154618c5760449334eeaf58558421c98ee63fad3c896c7e7eb13561ce680e013. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:11:00Z), 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/GX8LD2437816.
      date published: 2026-07-20T03:11:00Z
    audio: Cuidau
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 87.497
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.535
      additional property: Energy
        type: PropertyValue
        value: 0.726
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.967
      additional property: Liveness
        type: PropertyValue
        value: 0.153
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.191
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.052
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor