Kandarpa Roy
type: MusicGroup
popularity: 6
followers: 57
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9c8aea2795b7f4c2fb37fa42c004ccf80bb5398221dc8c532531f4dd1376311
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc470d77-08da-44fc-9e29-5fa2952dde35.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc470d77-08da-44fc-9e29-5fa2952dde35.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cc470d77-08da-44fc-9e29-5fa2952dde35
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc9c8aea2795b7f4c2fb37fa42c004ccf80bb5398221dc8c532531f4dd1376311","name":"Kandarpa Roy","registered_at":"2026-06-20T23:24:13Z","symbol":"NIM1748187","token_address":"0x0eaf908b66f2786547958c33173489d169aa25ac","type":"artist","uuid":"cc470d77-08da-44fc-9e29-5fa2952dde35"}
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 0xc9c8aea2795b7f4c2fb37fa42c004ccf80bb5398221dc8c532531f4dd1376311. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc470d77-08da-44fc-9e29-5fa2952dde35.json and https://artists.proofprofile.net/proofs/artist/cc470d77-08da-44fc-9e29-5fa2952dde35.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0xc9c8aea2795b7f4c2fb37fa42c004ccf80bb5398221dc8c532531f4dd1376311","name":"Kandarpa Roy","registered_at":"2026-06-20T23:24:13Z","symbol":"NIM1748187","token_address":"0x0eaf908b66f2786547958c33173489d169aa25ac","type":"artist","uuid":"cc470d77-08da-44fc-9e29-5fa2952dde35"}
album: Sakale Uthiya
  type: MusicAlbum
  date published: 2021-03-02
  track: Sakale Uthiya
    type: MusicRecording
    duration: PT3M28S
    duration ms: 208396
    explicit: false
    by artist: Kandarpa Roy
    in album: Sakale Uthiya
      type: MusicAlbum
      date published: 2021-03-02
    isrc code: INM7Q2100028
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T10:55:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x036d91e3f9169322c369b2293342f6f125b7185e66506fb9bf747349a8491535
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INM7Q2100028
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T12:24:55Z
    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 0x036d91e3f9169322c369b2293342f6f125b7185e66506fb9bf747349a8491535. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/INM7Q2100028.
      date published: 2026-07-19T12:24:55Z
    audio: Sakale Uthiya
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.979
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.772
      additional property: Energy
        type: PropertyValue
        value: 0.632
      additional property: Speechiness
        type: PropertyValue
        value: 0.07
      additional property: Acousticness
        type: PropertyValue
        value: 0.572
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.139
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.595
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.495
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ekdin Bujbu Tui
  type: MusicAlbum
  date published: 2021-11-15
  track: Ekdin Bujbu Tui
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201019
    explicit: false
    by artist: Kandarpa Roy
    in album: Ekdin Bujbu Tui
      type: MusicAlbum
      date published: 2021-11-15
    isrc code: FRX872139898
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T04:51:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd92f585c5bfc451758021b41a5eec2e3cec3b2db6c41b9fa9e5bf7dd5fb92802
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959100
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959100
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX872139898
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T07:52:49Z
    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 0xd92f585c5bfc451758021b41a5eec2e3cec3b2db6c41b9fa9e5bf7dd5fb92802. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:52:49Z), 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/FRX872139898.
      date published: 2026-07-22T07:52:49Z
    audio: Ekdin Bujbu Tui
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.474
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.341
      additional property: Energy
        type: PropertyValue
        value: 0.471
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.398
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.121
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.322
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Toke Dekhi
album: Ochin Deshot
album: Bonde Maya Lagaise
album: Tumi Ahile
album: Tadanta
album: Baba

Loudness (dB)
type: PropertyValue
value: -8.981

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Toke Dekhi
type: MusicAlbum
date published: 2021-11-15

Ochin Deshot
type: MusicAlbum
date published: 2022-02-04

Bonde Maya Lagaise
type: MusicAlbum
date published: 2022-06-30

Tumi Ahile
type: MusicAlbum
date published: 2022-09-12

Tadanta
type: MusicAlbum
date published: 2023-05-01

Baba
type: MusicAlbum
date published: 2024-04-08