Dharmarathna Brothers
type: MusicGroup
genre: calypso
popularity: 5
followers: 746
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd4d924a54bbf3a7acba09770422ca59fccf6c53a883e7bc0396d44a92818a020
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0f09d2c-c9e6-43cb-a8f1-ce13b08014e5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0f09d2c-c9e6-43cb-a8f1-ce13b08014e5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d0f09d2c-c9e6-43cb-a8f1-ce13b08014e5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd4d924a54bbf3a7acba09770422ca59fccf6c53a883e7bc0396d44a92818a020","name":"Dharmarathna Brothers","registered_at":"2026-06-21T01:04:43Z","symbol":"NIM1772247","token_address":"0x1ac28bd227e8c6ea1b6320aa52782942d99b3590","type":"artist","uuid":"d0f09d2c-c9e6-43cb-a8f1-ce13b08014e5"}
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 0xd4d924a54bbf3a7acba09770422ca59fccf6c53a883e7bc0396d44a92818a020. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0f09d2c-c9e6-43cb-a8f1-ce13b08014e5.json and https://artists.proofprofile.net/proofs/artist/d0f09d2c-c9e6-43cb-a8f1-ce13b08014e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0xd4d924a54bbf3a7acba09770422ca59fccf6c53a883e7bc0396d44a92818a020","name":"Dharmarathna Brothers","registered_at":"2026-06-21T01:04:43Z","symbol":"NIM1772247","token_address":"0x1ac28bd227e8c6ea1b6320aa52782942d99b3590","type":"artist","uuid":"d0f09d2c-c9e6-43cb-a8f1-ce13b08014e5"}
album: Kandukare
  type: MusicAlbum
  date published: 2012-05-01
  track: Kandukare
    type: MusicRecording
    duration: PT3M52S
    duration ms: 232071
    explicit: false
    by artist: Dharmarathna Brothers
    in album: Kandukare
      type: MusicAlbum
      date published: 2012-05-01
    genre: calypso
    isrc code: USA561143822
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T19:11:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1e78aeb5fd9795398dadccda130df9666b021f732a8f2789264f0c6ec2833465
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958448
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958448
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA561143822
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:49:21Z
    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 0x1e78aeb5fd9795398dadccda130df9666b021f732a8f2789264f0c6ec2833465. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USA561143822.
      date published: 2026-07-17T19:49:21Z
    audio: Kandukare
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.161
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.667
      additional property: Energy
        type: PropertyValue
        value: 0.621
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.442
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.114
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.802
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.54
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Dharmarathna Brothers
  type: MusicAlbum
  date published: 2012-07-16
album: Kalakata Pera
  type: MusicAlbum
  date published: 2018