Chathur Samarasinghe
type: MusicGroup
popularity: 4
followers: 299
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05134c18540196b5826dc85a815f25f99045cf3df91bb5305db520df71595f87
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5f72688a-5b09-4a68-a118-6c8dc8aba9bd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5f72688a-5b09-4a68-a118-6c8dc8aba9bd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5f72688a-5b09-4a68-a118-6c8dc8aba9bd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x05134c18540196b5826dc85a815f25f99045cf3df91bb5305db520df71595f87","name":"Chathur Samarasinghe","registered_at":"2026-06-16T22:52:59Z","symbol":"NIM1201075","token_address":"0x617ac443a7f988579d122412d45d17b43cb3a96a","type":"artist","uuid":"5f72688a-5b09-4a68-a118-6c8dc8aba9bd"}
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 0x05134c18540196b5826dc85a815f25f99045cf3df91bb5305db520df71595f87. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f72688a-5b09-4a68-a118-6c8dc8aba9bd.json and https://artists.proofprofile.net/proofs/artist/5f72688a-5b09-4a68-a118-6c8dc8aba9bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x05134c18540196b5826dc85a815f25f99045cf3df91bb5305db520df71595f87","name":"Chathur Samarasinghe","registered_at":"2026-06-16T22:52:59Z","symbol":"NIM1201075","token_address":"0x617ac443a7f988579d122412d45d17b43cb3a96a","type":"artist","uuid":"5f72688a-5b09-4a68-a118-6c8dc8aba9bd"}
album: Watermelon Sugar High
  type: MusicAlbum
  date published: 2020-10-31
  track: Watermelon Sugar High
    type: MusicRecording
    duration: PT2M9S
    duration ms: 129235
    explicit: true
    by artist: Chathur Samarasinghe
    in album: Watermelon Sugar High
      type: MusicAlbum
      date published: 2020-10-31
    isrc code: USL4R2066414
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T16:02:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x19102fa22037f8af4f67f873b2b6d4389b492ce5f1f7ac9bbe7f4b0dcc42e56f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958756
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958756
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2066414
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T19:02:57Z
    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 0x19102fa22037f8af4f67f873b2b6d4389b492ce5f1f7ac9bbe7f4b0dcc42e56f. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T19:02:57Z), 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/USL4R2066414.
      date published: 2026-07-19T19:02:57Z
    audio: Watermelon Sugar High
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 85.065
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.664
      additional property: Energy
        type: PropertyValue
        value: 0.191
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.776
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.073
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.325
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.163
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Love Yourself
  type: MusicAlbum
  date published: 2020-12-21
album: Dura Yai
  type: MusicAlbum
  date published: 2021-01-12
album: Dura Yai
  type: MusicAlbum
  date published: 2021-01-15
album: Covers
  type: MusicAlbum
  date published: 2021-06-18
album: Covers
  type: MusicAlbum
  date published: 2021-06-18
album: Windimuda Adare
  type: MusicAlbum
  date published: 2023-02-10
album: Mathaka
  type: MusicAlbum
  date published: 2023-03-31
album: Fireflies
  type: MusicAlbum
  date published: 2023-09-16
album: wait till i touch you again
  type: MusicAlbum
  date published: 2025-05-05
album: Awadi Wu Wagai !
  type: MusicAlbum
  date published: 2025-09-27
album: Hudakalawa
  type: MusicAlbum
  date published: 2025-10-16