Upkar Thakur
type: MusicGroup
popularity: 10
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x85a3f3c1dae340cd17a06f09a182f60e947e85baa1bec298c508554757153eed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9fe8917f-8fb6-4b22-90a3-925038784b1b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9fe8917f-8fb6-4b22-90a3-925038784b1b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9fe8917f-8fb6-4b22-90a3-925038784b1b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x85a3f3c1dae340cd17a06f09a182f60e947e85baa1bec298c508554757153eed","name":"Upkar Thakur","registered_at":"2026-06-20T05:05:41Z","symbol":"NIM1521088","token_address":"0x6883b8b529b2724b779c71ef8cc84d1e0419ffd5","type":"artist","uuid":"9fe8917f-8fb6-4b22-90a3-925038784b1b"}
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 0x85a3f3c1dae340cd17a06f09a182f60e947e85baa1bec298c508554757153eed. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9fe8917f-8fb6-4b22-90a3-925038784b1b.json and https://artists.proofprofile.net/proofs/artist/9fe8917f-8fb6-4b22-90a3-925038784b1b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0x85a3f3c1dae340cd17a06f09a182f60e947e85baa1bec298c508554757153eed","name":"Upkar Thakur","registered_at":"2026-06-20T05:05:41Z","symbol":"NIM1521088","token_address":"0x6883b8b529b2724b779c71ef8cc84d1e0419ffd5","type":"artist","uuid":"9fe8917f-8fb6-4b22-90a3-925038784b1b"}
album: Kai Khwab
  type: MusicAlbum
  date published: 2023-02-13
album: Haniye
  type: MusicAlbum
  date published: 2025-03-27
album: Sajni
  type: MusicAlbum
  date published: 2025-05-22
  track: Sajni
    type: MusicRecording
    duration: PT3M58S
    duration ms: 238195
    explicit: false
    by artist: Upkar Thakur
    in album: Sajni
      type: MusicAlbum
      date published: 2025-05-22
    isrc code: ING642504333
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T21:26:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2f8c994e72a6484716723376e86f006ebf8da70e97ebf818d9fe853fe60a3af4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956738
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956738
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ING642504333
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T04:47:21Z
    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 0x2f8c994e72a6484716723376e86f006ebf8da70e97ebf818d9fe853fe60a3af4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ING642504333.
      date published: 2026-07-05T04:47:21Z
    audio: Sajni
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.874
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.486
      additional property: Energy
        type: PropertyValue
        value: 0.418
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.614
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.121
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.329
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.67
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Barkha
  type: MusicAlbum
  date published: 2025-09-10