Kamrul Islam Shrijon
type: MusicGroup
genre: bangla pop
popularity: 4
followers: 1968
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9d9e6c9e15b0bf082e276447c3543cc1751f8c09bb8dce015cfbc081dd0c3b0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41b746ae-1864-407f-af34-fccadeab771f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41b746ae-1864-407f-af34-fccadeab771f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41b746ae-1864-407f-af34-fccadeab771f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa9d9e6c9e15b0bf082e276447c3543cc1751f8c09bb8dce015cfbc081dd0c3b0","name":"Kamrul Islam Shrijon","registered_at":"2026-06-16T12:27:00Z","symbol":"NIM1051718","token_address":"0x9ec55873297cfb0b94d27874fdad57859eae080a","type":"artist","uuid":"41b746ae-1864-407f-af34-fccadeab771f"}
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 0xa9d9e6c9e15b0bf082e276447c3543cc1751f8c09bb8dce015cfbc081dd0c3b0. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41b746ae-1864-407f-af34-fccadeab771f.json and https://artists.proofprofile.net/proofs/artist/41b746ae-1864-407f-af34-fccadeab771f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xa9d9e6c9e15b0bf082e276447c3543cc1751f8c09bb8dce015cfbc081dd0c3b0","name":"Kamrul Islam Shrijon","registered_at":"2026-06-16T12:27:00Z","symbol":"NIM1051718","token_address":"0x9ec55873297cfb0b94d27874fdad57859eae080a","type":"artist","uuid":"41b746ae-1864-407f-af34-fccadeab771f"}
album: Utshorgo
  type: MusicAlbum
  date published: 2021-06-26
  track: Utshorgo
    type: MusicRecording
    duration: PT1M39S
    duration ms: 99060
    explicit: false
    by artist: Kamrul Islam Shrijon
    in album: Utshorgo
      type: MusicAlbum
      date published: 2021-06-26
    genre: bangla pop
    isrc code: QZK6Q2183256
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T19:35:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1c5c26ffcdf2babb9da5b38668215742e32a9a924c668ad309b8605a25000d28
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958319
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958319
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6Q2183256
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T20:12:32Z
    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 0x1c5c26ffcdf2babb9da5b38668215742e32a9a924c668ad309b8605a25000d28. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZK6Q2183256.
      date published: 2026-07-16T20:12:32Z
    audio: Utshorgo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.352
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.534
      additional property: Energy
        type: PropertyValue
        value: 0.295
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.891
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.348
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.744
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.971
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: ORANGE
  type: MusicAlbum
  date published: 2023-01-24
album: Vengeance
  type: MusicAlbum
  date published: 2023-01-24