DuRap
type: MusicGroup
popularity: 2
followers: 129
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe802dbcc84cb2f6e1c487b5fcb3bb69a5ebe12af49fcd7ab6b20aa1ce47c81d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954047
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954047
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/421c9ae2-5315-4c2d-b632-4b8a972fff07.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/421c9ae2-5315-4c2d-b632-4b8a972fff07.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/421c9ae2-5315-4c2d-b632-4b8a972fff07
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:56:08Z
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 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 0xfe802dbcc84cb2f6e1c487b5fcb3bb69a5ebe12af49fcd7ab6b20aa1ce47c81d. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/421c9ae2-5315-4c2d-b632-4b8a972fff07.json and https://artists.proofprofile.net/proofs/artist/421c9ae2-5315-4c2d-b632-4b8a972fff07.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:56:08Z
album: Seus Olhos São
  type: MusicAlbum
  date published: 2016-07-21
  track: Seus Olhos São
    type: MusicRecording
    duration: PT2M55S
    duration ms: 175632
    explicit: false
    by artist: DuRap
    in album: Seus Olhos São
      type: MusicAlbum
      date published: 2016-07-21
    isrc code: US7VG1679642
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T21:26:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf04a6b0eea47de79228eff40579c40d3dbe5cd57d5520c95ba1ab1d681223827
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958935
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958935
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1679642
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T22:08:19Z
    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 0xf04a6b0eea47de79228eff40579c40d3dbe5cd57d5520c95ba1ab1d681223827. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/US7VG1679642.
      date published: 2026-07-20T22:08:19Z
    audio: Seus Olhos São
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 81.974
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.759
      additional property: Energy
        type: PropertyValue
        value: 0.469
      additional property: Speechiness
        type: PropertyValue
        value: 0.298
      additional property: Acousticness
        type: PropertyValue
        value: 0.186
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.232
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.614
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: União Sga
  type: MusicAlbum
  date published: 2023-08-17