Sasanka Rajasekara
type: MusicGroup
popularity: 3
followers: 342
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3040298d45f60737dd695dd0fb212883243a080288efc6a2d539c4bcd58a0249
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c806f64d-ec4c-4ff8-93ea-7875e6aa3dd4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c806f64d-ec4c-4ff8-93ea-7875e6aa3dd4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c806f64d-ec4c-4ff8-93ea-7875e6aa3dd4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3040298d45f60737dd695dd0fb212883243a080288efc6a2d539c4bcd58a0249","name":"Sasanka Rajasekara","registered_at":"2026-06-20T21:57:32Z","symbol":"NIM1725364","token_address":"0x10fb7aa6f2a1ca17e1fd56093054633138b21b09","type":"artist","uuid":"c806f64d-ec4c-4ff8-93ea-7875e6aa3dd4"}
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 0x3040298d45f60737dd695dd0fb212883243a080288efc6a2d539c4bcd58a0249. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c806f64d-ec4c-4ff8-93ea-7875e6aa3dd4.json and https://artists.proofprofile.net/proofs/artist/c806f64d-ec4c-4ff8-93ea-7875e6aa3dd4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0x3040298d45f60737dd695dd0fb212883243a080288efc6a2d539c4bcd58a0249","name":"Sasanka Rajasekara","registered_at":"2026-06-20T21:57:32Z","symbol":"NIM1725364","token_address":"0x10fb7aa6f2a1ca17e1fd56093054633138b21b09","type":"artist","uuid":"c806f64d-ec4c-4ff8-93ea-7875e6aa3dd4"}
album: Noena Duraka - Single
  type: MusicAlbum
  date published: 2018-07-26
  track: Noena Duraka
    type: MusicRecording
    duration: PT4M6S
    duration ms: 246842
    explicit: false
    by artist: Sasanka Rajasekara
    in album: Noena Duraka - Single
      type: MusicAlbum
      date published: 2018-07-26
    isrc code: LKA021800010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T15:37:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0753341ec1b0d233fdcc70e75701a126eadedc4f007eafc92861e44ad04574cd
    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/LKA021800010
    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 0x0753341ec1b0d233fdcc70e75701a126eadedc4f007eafc92861e44ad04574cd. 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/LKA021800010.
      date published: 2026-07-05T04:47:21Z
    audio: Noena Duraka
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.997
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.727
      additional property: Energy
        type: PropertyValue
        value: 0.545
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.529
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.191
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.662
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.14
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor