S. A. Rajkumar
type: MusicGroup
genre: tamil pop
description: S. A. Rajkumar (born 23 August 1964) is an Indian music composer and lyricist, known for his work primarily in Tamil, Telugu, and Kannada cinema. Early life Rajkumar's father was a vocalist perform
popularity: 22
followers: 5593
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d6ecd76-159c-4d37-ab5a-57f3671a3734.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d6ecd76-159c-4d37-ab5a-57f3671a3734.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7d6ecd76-159c-4d37-ab5a-57f3671a3734
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac17f6c3221d0a8f7be863a843b1abe5d880a37a7d96a61d54c73ca74834ec1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d6ecd76-159c-4d37-ab5a-57f3671a3734.json and https://artists.proofprofile.net/proofs/artist/7d6ecd76-159c-4d37-ab5a-57f3671a3734.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xcac17f6c3221d0a8f7be863a843b1abe5d880a37a7d96a61d54c73ca74834ec1","name":"S. A. Rajkumar","registered_at":"2026-06-12T02:38:22Z","symbol":"NIM0161522","token_address":"0x71f6e6cf60fa9a2d9c01bde3d86f5cecc33eeeb7","type":"artist","uuid":"7d6ecd76-159c-4d37-ab5a-57f3671a3734"}
album: Aval Varuvala (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 1998-05-15
  track: Rukku Rukku
    type: MusicRecording
    duration: PT4M26S
    duration ms: 266133
    explicit: false
    by artist: S. A. Rajkumar
    in album: Aval Varuvala (Original Motion Picture Soundtrack)
      type: MusicAlbum
      date published: 1998-05-15
    genre: tamil pop
    isrc code: IND292214520
    additional property: CopyrightID
    additional property: CopyrightStatus
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      type: PropertyValue
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    additional property: OTSBitcoinBlockVerifyURL
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IND292214520
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:47:19Z
    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 0x131c805721fb679bf1c68ec8a67de48bd92c1da779f0bb6f412d93beec82ef19. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/IND292214520.
      date published: 2026-07-17T19:47:19Z
    audio: Rukku Rukku
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.951
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.907
      additional property: Energy
        type: PropertyValue
        value: 0.596
      additional property: Speechiness
        type: PropertyValue
        value: 0.12
      additional property: Acousticness
        type: PropertyValue
        value: 0.169
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.31
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.737
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.597
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Aval Varuvala (Karaoke)
  type: MusicAlbum
  date published: 1998-05-15
album: Namma Veettu Kalyanam (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2002-09-27