Uttam Kumar
type: MusicGroup
genre: bangla pop
description: Arun Kumar Chattopadhyay (3 September 1926 – 24 July 1980), known professionally as Uttam Kumar (), was an Indian actor, director, producer, screenwriter, composer and playback singer who predominantl
popularity: 8
followers: 2573
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4004848d782ce3e514de8c9866088057f0a0bcdb561a2c422f006015217a1dec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f04a2f90-a93e-4bc6-82aa-9dcef4b477e1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f04a2f90-a93e-4bc6-82aa-9dcef4b477e1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f04a2f90-a93e-4bc6-82aa-9dcef4b477e1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4004848d782ce3e514de8c9866088057f0a0bcdb561a2c422f006015217a1dec","name":"Uttam Kumar","registered_at":"2026-06-21T13:12:58Z","symbol":"NIM1932518","token_address":"0xebbf967f8b6825e2f24a4d0ccbafb5f8d44d1a02","type":"artist","uuid":"f04a2f90-a93e-4bc6-82aa-9dcef4b477e1"}
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 0x4004848d782ce3e514de8c9866088057f0a0bcdb561a2c422f006015217a1dec. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f04a2f90-a93e-4bc6-82aa-9dcef4b477e1.json and https://artists.proofprofile.net/proofs/artist/f04a2f90-a93e-4bc6-82aa-9dcef4b477e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x4004848d782ce3e514de8c9866088057f0a0bcdb561a2c422f006015217a1dec","name":"Uttam Kumar","registered_at":"2026-06-21T13:12:58Z","symbol":"NIM1932518","token_address":"0xebbf967f8b6825e2f24a4d0ccbafb5f8d44d1a02","type":"artist","uuid":"f04a2f90-a93e-4bc6-82aa-9dcef4b477e1"}
album: Kal Tumi Aleya (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 1966-12-01
album: Kal Tumi Aleya
  type: MusicAlbum
  date published: 1966-12-31
album: Kal Tumi Aleya (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 1966-12-31
album: Aamar Sonar Harin Chai
  type: MusicAlbum
  date published: 1970-01-01
  track: Aamar Sonar Harin Chai
    type: MusicRecording
    duration: PT2M20S
    duration ms: 140922
    explicit: false
    by artist: Uttam Kumar
    in album: Aamar Sonar Harin Chai
      type: MusicAlbum
      date published: 1970-01-01
    genre: bangla pop
    isrc code: INI111624300
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T20:01:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb45263b522e1fa8f38beb35d1607cf4cdcae68e56b53191815570f318cde8da9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INI111624300
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 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 0xb45263b522e1fa8f38beb35d1607cf4cdcae68e56b53191815570f318cde8da9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/INI111624300.
      date published: 2026-07-05T01:12:41Z
    audio: Aamar Sonar Harin Chai
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 64.356
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.231
      additional property: Energy
        type: PropertyValue
        value: 0.169
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.994
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.847
      additional property: Liveness
        type: PropertyValue
        value: 0.257
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.352
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.077
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Anek Katha Bolechhilem
  type: MusicAlbum
  date published: 1972-01-01
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  type: MusicAlbum
  date published: 2022-05-10
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  type: MusicAlbum
  date published: 2022-06-18
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  type: MusicAlbum
  date published: 2022-11-20
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  type: MusicAlbum
  date published: 2022-11-20
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  type: MusicAlbum
  date published: 2022-11-20
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  type: MusicAlbum
  date published: 2023-01-18
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  type: MusicAlbum
  date published: 2023-01-24
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  type: MusicAlbum
  date published: 2023-06-30
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  type: MusicAlbum
  date published: 2023-06-30
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  type: MusicAlbum
  date published: 2024-05-06
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  type: MusicAlbum
  date published: 2024-05-17
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  type: MusicAlbum
  date published: 2024-10-01