V. S. Narasimhan
type: MusicGroup
genre: tamil pop
description: V. S. Narasimhan (born 1943) is an Indian violinist and composer who worked in South Indian films. He is also the founder of the Madras String Quartet. Life V. S. Narasimhan was born in Mysore. He
popularity: 2
followers: 13
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-17T08:10:43Z
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2ccce74ebf9b44e7a2e6fd06b94ff56506b984f5a4b0d73f109c60206298c4. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5420c59c-66bd-4b40-b582-68c57d72ba68.json and https://artists.proofprofile.net/proofs/artist/5420c59c-66bd-4b40-b582-68c57d72ba68.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x3b2ccce74ebf9b44e7a2e6fd06b94ff56506b984f5a4b0d73f109c60206298c4","name":"V. S. Narasimhan","registered_at":"2026-06-16T18:59:58Z","symbol":"NIM1145473","token_address":"0x078c28b6345229c8ab3ab2f5d63b600cf78ad13f","type":"artist","uuid":"5420c59c-66bd-4b40-b582-68c57d72ba68"}
album: Paasa Malargal (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 1994-02-04
album: Paasa Malargal (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 1994-02-04
  track: Koottukkul Pottaalum
    type: MusicRecording
    duration: PT4M56S
    duration ms: 296855
    explicit: false
    by artist: V. S. Narasimhan
    in album: Paasa Malargal (Original Motion Picture Soundtrack)
      type: MusicAlbum
      date published: 1994-02-04
    genre: tamil pop
    isrc code: IND291703584
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    additional property: OTSVerificationAPI
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      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IND291703584
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T07:04:12Z
    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea429dba8d92e0ce9353a04b0f2de44769421bef5005c2fc08b03889d598907. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/IND291703584.
      date published: 2026-07-21T07:04:12Z
    audio: Koottukkul Pottaalum
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
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      additional property: Musical Key
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        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.854
      additional property: Energy
        type: PropertyValue
        value: 0.374
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.968
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.853
      additional property: Liveness
        type: PropertyValue
        value: 0.114
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.818
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.438
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Paasa Malargal (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 1994-02-04