Tuhina Chakma
type: MusicGroup
popularity: 23
followers: 1670
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f1cea08674c5651f0b32bbe0a513b4eee29befbc32017338c8747a3516b89f8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  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/2f193259-13d7-4ea4-ab7b-1b4ca16e07f0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2f193259-13d7-4ea4-ab7b-1b4ca16e07f0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2f193259-13d7-4ea4-ab7b-1b4ca16e07f0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3f1cea08674c5651f0b32bbe0a513b4eee29befbc32017338c8747a3516b89f8","name":"Tuhina Chakma","registered_at":"2026-06-12T15:11:49Z","symbol":"NIM0061834","token_address":"0xc26bab10c2460c2c58409124cf588264796249f9","type":"artist","uuid":"2f193259-13d7-4ea4-ab7b-1b4ca16e07f0"}
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 0x3f1cea08674c5651f0b32bbe0a513b4eee29befbc32017338c8747a3516b89f8. 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/2f193259-13d7-4ea4-ab7b-1b4ca16e07f0.json and https://artists.proofprofile.net/proofs/artist/2f193259-13d7-4ea4-ab7b-1b4ca16e07f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x3f1cea08674c5651f0b32bbe0a513b4eee29befbc32017338c8747a3516b89f8","name":"Tuhina Chakma","registered_at":"2026-06-12T15:11:49Z","symbol":"NIM0061834","token_address":"0xc26bab10c2460c2c58409124cf588264796249f9","type":"artist","uuid":"2f193259-13d7-4ea4-ab7b-1b4ca16e07f0"}
album: Hengorong
  type: MusicAlbum
  date published: 2024-03-21
album: Bubor Swbon
  type: MusicAlbum
  date published: 2024-08-30
  track: Bubor Swbon
    type: MusicRecording
    duration: PT5M10S
    duration ms: 310344
    explicit: false
    by artist: Tuhina Chakma
    in album: Bubor Swbon
      type: MusicAlbum
      date published: 2024-08-30
    isrc code: TCAIQ2490205
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T09:29:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xacf5796544eddbb3730aab179383394694ecb5b62eb1ccf38a66caebf82e4a9a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958714
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958714
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAIQ2490205
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T09:51:44Z
    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 0xacf5796544eddbb3730aab179383394694ecb5b62eb1ccf38a66caebf82e4a9a. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/TCAIQ2490205.
      date published: 2026-07-19T09:51:44Z
    audio: Bubor Swbon
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.088
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.494
      additional property: Energy
        type: PropertyValue
        value: 0.671
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.427
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.251
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.52
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.75
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Lajang Lajang
  type: MusicAlbum
  date published: 2025-04-03
album: Somar Somari
  type: MusicAlbum
  date published: 2025-04-08