Duos Duet
type: MusicGroup
popularity: 3
followers: 233
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66185e6332e3b975d040d926d94715b019aeeca8ea6b93ae38fcc0928d7fd2ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bfe2e610-654e-4c45-b8c2-7e21a895c96d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bfe2e610-654e-4c45-b8c2-7e21a895c96d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bfe2e610-654e-4c45-b8c2-7e21a895c96d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x66185e6332e3b975d040d926d94715b019aeeca8ea6b93ae38fcc0928d7fd2ab","name":"Duos Duet","registered_at":"2026-06-20T18:41:42Z","symbol":"NIM1683701","token_address":"0x2ce6faa8b3fe2c8c01801825887e06b3dd9993fc","type":"artist","uuid":"bfe2e610-654e-4c45-b8c2-7e21a895c96d"}
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 0x66185e6332e3b975d040d926d94715b019aeeca8ea6b93ae38fcc0928d7fd2ab. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bfe2e610-654e-4c45-b8c2-7e21a895c96d.json and https://artists.proofprofile.net/proofs/artist/bfe2e610-654e-4c45-b8c2-7e21a895c96d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x66185e6332e3b975d040d926d94715b019aeeca8ea6b93ae38fcc0928d7fd2ab","name":"Duos Duet","registered_at":"2026-06-20T18:41:42Z","symbol":"NIM1683701","token_address":"0x2ce6faa8b3fe2c8c01801825887e06b3dd9993fc","type":"artist","uuid":"bfe2e610-654e-4c45-b8c2-7e21a895c96d"}
album: Pieces from Streets
  type: MusicAlbum
  date published: 2019-09-20
  track: Karsiyaka
    type: MusicRecording
    duration: PT3M13S
    duration ms: 193498
    explicit: false
    by artist: Duos Duet
    in album: Pieces from Streets
      type: MusicAlbum
      date published: 2019-09-20
    isrc code: IRA0M1900083
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T13:14:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0455c9c761af683a6d4ecc5966919592644711835f7b25a2eb29843a40c6f5ce
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959010
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959010
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IRA0M1900083
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T16:09:37Z
    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 0x0455c9c761af683a6d4ecc5966919592644711835f7b25a2eb29843a40c6f5ce. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T16:09:37Z), 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/IRA0M1900083.
      date published: 2026-07-21T16:09:37Z
    audio: Karsiyaka
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.978
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.271
      additional property: Energy
        type: PropertyValue
        value: 0.212
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.942
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.95
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.251
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.919
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Hichkas Firooz
  type: MusicAlbum
  date published: 2023-03-20
album: Paradox (Bloody November)
  type: MusicAlbum
  date published: 2023-04-07
album: Shattered Piece (Live)
  type: MusicAlbum
  date published: 2024-11-11