Siam Hawlader
type: MusicGroup
genre: desi hip hop
popularity: 8
followers: 700
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x39d83a9dd0c677cf9097ddca8ecba2c4ca342dc2a7351d9833c0efb86d84785b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953928
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953928
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1dc694ce-2578-4be7-be4d-66c82b96ea62.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1dc694ce-2578-4be7-be4d-66c82b96ea62.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1dc694ce-2578-4be7-be4d-66c82b96ea62
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:21:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x39d83a9dd0c677cf9097ddca8ecba2c4ca342dc2a7351d9833c0efb86d84785b","name":"Siam Hawlader","registered_at":"2026-06-15T23:59:17Z","symbol":"NIM0873197","token_address":"0x6a2b60c8ad81c1eee5c107842c91da74b011707e","type":"artist","uuid":"1dc694ce-2578-4be7-be4d-66c82b96ea62"}
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 0x39d83a9dd0c677cf9097ddca8ecba2c4ca342dc2a7351d9833c0efb86d84785b. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1dc694ce-2578-4be7-be4d-66c82b96ea62.json and https://artists.proofprofile.net/proofs/artist/1dc694ce-2578-4be7-be4d-66c82b96ea62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x39d83a9dd0c677cf9097ddca8ecba2c4ca342dc2a7351d9833c0efb86d84785b","name":"Siam Hawlader","registered_at":"2026-06-15T23:59:17Z","symbol":"NIM0873197","token_address":"0x6a2b60c8ad81c1eee5c107842c91da74b011707e","type":"artist","uuid":"1dc694ce-2578-4be7-be4d-66c82b96ea62"}
album: TORKO
  type: MusicAlbum
  date published: 2022-12-03
album: Notun Bochor
  type: MusicAlbum
  date published: 2023-01-04
album: New In Dhaka
  type: MusicAlbum
  date published: 2023-04-21
album: New In Dhaka
  type: MusicAlbum
  date published: 2023-04-21
  track: New In Dhaka
    type: MusicRecording
    duration: PT4M20S
    duration ms: 260333
    explicit: false
    by artist: Siam Hawlader
    in album: New In Dhaka
      type: MusicAlbum
      date published: 2023-04-21
    genre: desi hip hop
    isrc code: FRX452336413
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T16:54:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x88d9a36d8790f5d28df63009e7d2d662e4270070061735b9e218651de4b0428d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452336413
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T19:55:41Z
    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 0x88d9a36d8790f5d28df63009e7d2d662e4270070061735b9e218651de4b0428d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:55:41Z), 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/FRX452336413.
      date published: 2026-07-19T19:55:41Z
    audio: New In Dhaka
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 83.251
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.631
      additional property: Energy
        type: PropertyValue
        value: 0.642
      additional property: Speechiness
        type: PropertyValue
        value: 0.47
      additional property: Acousticness
        type: PropertyValue
        value: 0.306
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.069
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.848
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.622
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Bastob
  type: MusicAlbum
  date published: 2023-07-13
album: Iccha Kiccha
  type: MusicAlbum
  date published: 2023-09-23
album: Ligion Dhakaiya
  type: MusicAlbum
  date published: 2024-03-13
album: Pokto Kotha
  type: MusicAlbum
  date published: 2024-04-09
album: Copy Buzz
  type: MusicAlbum
  date published: 2024-06-27