Answer Sheet
type: MusicGroup
genre: indonesian indie
popularity: 3
followers: 843
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x140db487b1830a65b65933b1b377e763e2e3088e95d3a4f288490e918df31d9d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/564b10a5-3d7b-42b4-93a4-b49d1b437b77.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/564b10a5-3d7b-42b4-93a4-b49d1b437b77.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/564b10a5-3d7b-42b4-93a4-b49d1b437b77
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x140db487b1830a65b65933b1b377e763e2e3088e95d3a4f288490e918df31d9d","name":"Answer Sheet","registered_at":"2026-06-16T19:36:46Z","symbol":"NIM1154259","token_address":"0x2da528e19e6218fcb70c05615bf49efadb01b826","type":"artist","uuid":"564b10a5-3d7b-42b4-93a4-b49d1b437b77"}
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 0x140db487b1830a65b65933b1b377e763e2e3088e95d3a4f288490e918df31d9d. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/564b10a5-3d7b-42b4-93a4-b49d1b437b77.json and https://artists.proofprofile.net/proofs/artist/564b10a5-3d7b-42b4-93a4-b49d1b437b77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x140db487b1830a65b65933b1b377e763e2e3088e95d3a4f288490e918df31d9d","name":"Answer Sheet","registered_at":"2026-06-16T19:36:46Z","symbol":"NIM1154259","token_address":"0x2da528e19e6218fcb70c05615bf49efadb01b826","type":"artist","uuid":"564b10a5-3d7b-42b4-93a4-b49d1b437b77"}
album: Chapter 1: Istas Promenade
  type: MusicAlbum
  date published: 2013-01-01
album: Chapter 1 Istas Promenade
  type: MusicAlbum
  date published: 2013-03-11
album: Chapter 1 Istas Promenade
  type: MusicAlbum
  date published: 2013-03-11
album: Meditate
  type: MusicAlbum
  date published: 2017-04-07
album: Clickbait
  type: MusicAlbum
  date published: 2018-03-26
album: Tubruk, Senja
  type: MusicAlbum
  date published: 2020-09-30
album: Dewasa
  type: MusicAlbum
  date published: 2023-01-27
album: Serenades Of Istas Parade
  type: MusicAlbum
  date published: 2024-05-20
album: Menuju 25
  type: MusicAlbum
  date published: 2024-11-25
  track: Menuju 25
    type: MusicRecording
    duration: PT4M6S
    duration ms: 246545
    explicit: false
    by artist: Answer Sheet
    in album: Menuju 25
      type: MusicAlbum
      date published: 2024-11-25
    genre: indonesian indie
    isrc code: DGA0Q2430683
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T03:19:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7c87b445498ed9148cc86bd6eedcfc087a2255d656641698b79aa976dff5e1aa
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0Q2430683
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0x7c87b445498ed9148cc86bd6eedcfc087a2255d656641698b79aa976dff5e1aa. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DGA0Q2430683.
      date published: 2026-07-06T06:56:49Z
    audio: Menuju 25
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.045
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.688
      additional property: Energy
        type: PropertyValue
        value: 0.829
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.242
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.161
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.541
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.179
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major