Twentyfirst Night
type: MusicGroup
genre: indonesian indie
genre: indonesian pop
popularity: 15
followers: 25017
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2ebea0bafffbef7961788cbd91ccdc0d1582dd2a5c787113387fb56040a0640
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40762f67-bc32-4b58-b6e6-56ee94ab056d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40762f67-bc32-4b58-b6e6-56ee94ab056d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/40762f67-bc32-4b58-b6e6-56ee94ab056d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd2ebea0bafffbef7961788cbd91ccdc0d1582dd2a5c787113387fb56040a0640","name":"Twentyfirst Night","registered_at":"2026-06-14T11:14:58Z","symbol":"NIM0435485","token_address":"0x4e92a78b57267e82ef7446c92a329b2015763438","type":"artist","uuid":"40762f67-bc32-4b58-b6e6-56ee94ab056d"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ebea0bafffbef7961788cbd91ccdc0d1582dd2a5c787113387fb56040a0640. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40762f67-bc32-4b58-b6e6-56ee94ab056d.json and https://artists.proofprofile.net/proofs/artist/40762f67-bc32-4b58-b6e6-56ee94ab056d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xd2ebea0bafffbef7961788cbd91ccdc0d1582dd2a5c787113387fb56040a0640","name":"Twentyfirst Night","registered_at":"2026-06-14T11:14:58Z","symbol":"NIM0435485","token_address":"0x4e92a78b57267e82ef7446c92a329b2015763438","type":"artist","uuid":"40762f67-bc32-4b58-b6e6-56ee94ab056d"}
album: Dreams of Youth
  type: MusicAlbum
  date published: 2011-08-01
album: Diatas Awan
  type: MusicAlbum
  date published: 2015-08-14
  track: Virus Asmara
    type: MusicRecording
    duration: PT3M48S
    duration ms: 228800
    explicit: false
    by artist: Twentyfirst Night
    in album: Diatas Awan
      type: MusicAlbum
      date published: 2015-08-14
    genre: indonesian indie
    genre: indonesian pop
    isrc code: FRX871546852
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T05:40:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9d6a9e18564d7d3733c367840907f7450ec428bfd9f92d57dcfd0167338d750d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958975
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958975
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX871546852
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T06:12:52Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6a9e18564d7d3733c367840907f7450ec428bfd9f92d57dcfd0167338d750d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX871546852 — a six-check JSON result.
      date published: 2026-07-21T06:12:52Z
    audio: Virus Asmara
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.05
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.662
      additional property: Energy
        type: PropertyValue
        value: 0.848
      additional property: Speechiness
        type: PropertyValue
        value: 0.069
      additional property: Acousticness
        type: PropertyValue
        value: 0.279
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.798
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.582
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Kejora
  type: MusicAlbum
  date published: 2017-01-09