The Rehman Duo
type: MusicGroup
genre: bangla pop
popularity: 6
followers: 4768
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3431c214fb3ef8c62d25e9c28684b43dac10deaf253e2df612822ae1116c65ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aa60e5fe-9738-45a1-8e63-336a3693f4fd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aa60e5fe-9738-45a1-8e63-336a3693f4fd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/aa60e5fe-9738-45a1-8e63-336a3693f4fd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3431c214fb3ef8c62d25e9c28684b43dac10deaf253e2df612822ae1116c65ab","name":"The Rehman Duo","registered_at":"2026-06-20T09:21:58Z","symbol":"NIM1577332","token_address":"0xeb1a73e6d167c0a4f1bd82132c60eef9e8b54abf","type":"artist","uuid":"aa60e5fe-9738-45a1-8e63-336a3693f4fd"}
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 0x3431c214fb3ef8c62d25e9c28684b43dac10deaf253e2df612822ae1116c65ab. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa60e5fe-9738-45a1-8e63-336a3693f4fd.json and https://artists.proofprofile.net/proofs/artist/aa60e5fe-9738-45a1-8e63-336a3693f4fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x3431c214fb3ef8c62d25e9c28684b43dac10deaf253e2df612822ae1116c65ab","name":"The Rehman Duo","registered_at":"2026-06-20T09:21:58Z","symbol":"NIM1577332","token_address":"0xeb1a73e6d167c0a4f1bd82132c60eef9e8b54abf","type":"artist","uuid":"aa60e5fe-9738-45a1-8e63-336a3693f4fd"}
album: Onnoy
  type: MusicAlbum
  date published: 2020-06-08
  track: Onnoy
    type: MusicRecording
    duration: PT3M10S
    duration ms: 190243
    explicit: false
    by artist: The Rehman Duo
    in album: Onnoy
      type: MusicAlbum
      date published: 2020-06-08
    genre: bangla pop
    isrc code: QMLNB2000167
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T22:23:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd505d41f5e8799c0413cedaf3c4a2d29e875b58f84cd9a56bd1bd2338fcc96d2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957770
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957770
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMLNB2000167
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T23:17:00Z
    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 0xd505d41f5e8799c0413cedaf3c4a2d29e875b58f84cd9a56bd1bd2338fcc96d2. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QMLNB2000167.
      date published: 2026-07-12T23:17:00Z
    audio: Onnoy
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 81.726
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.559
      additional property: Energy
        type: PropertyValue
        value: 0.07
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.935
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.118
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.331
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.055
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: ASHOR
  type: MusicAlbum
  date published: 2020-09-22
album: BOLE DAO
  type: MusicAlbum
  date published: 2021-02-14
album: Etibritto
  type: MusicAlbum
  date published: 2021-11-15
album: Isshot Jajabor
  type: MusicAlbum
  date published: 2022-08-17
album: Unojon
  type: MusicAlbum
  date published: 2023-05-01
album: Ekhane Ekhon
  type: MusicAlbum
  date published: 2024-02-16
album: Children of Heaven
  type: MusicAlbum
  date published: 2025-04-21