The Working Class Symphony
type: MusicGroup
popularity: 21
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3bf6906342df41a0e46a5625770bb817419485f574fdf6f9b9b8c6999d0df547
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5b21473d-e99c-4d78-b9bf-b52a6a8ab75c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5b21473d-e99c-4d78-b9bf-b52a6a8ab75c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5b21473d-e99c-4d78-b9bf-b52a6a8ab75c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3bf6906342df41a0e46a5625770bb817419485f574fdf6f9b9b8c6999d0df547","name":"The Working Class Symphony","registered_at":"2026-06-11T21:33:16Z","symbol":"NIM0118292","token_address":"0x6620c4da2e23596503551e42f92280b64b9df2bb","type":"artist","uuid":"5b21473d-e99c-4d78-b9bf-b52a6a8ab75c"}
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 0x3bf6906342df41a0e46a5625770bb817419485f574fdf6f9b9b8c6999d0df547. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b21473d-e99c-4d78-b9bf-b52a6a8ab75c.json and https://artists.proofprofile.net/proofs/artist/5b21473d-e99c-4d78-b9bf-b52a6a8ab75c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x3bf6906342df41a0e46a5625770bb817419485f574fdf6f9b9b8c6999d0df547","name":"The Working Class Symphony","registered_at":"2026-06-11T21:33:16Z","symbol":"NIM0118292","token_address":"0x6620c4da2e23596503551e42f92280b64b9df2bb","type":"artist","uuid":"5b21473d-e99c-4d78-b9bf-b52a6a8ab75c"}
album: Satu Jiwa
  type: MusicAlbum
  date published: 2019-08-08
  track: Satu Jiwa
    type: MusicRecording
    duration: PT4M33S
    duration ms: 273005
    explicit: false
    by artist: The Working Class Symphony
    in album: Satu Jiwa
      type: MusicAlbum
      date published: 2019-08-08
    isrc code: US3DF1989871
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb7377d46c6757b02ea81af45f7a17d4acbf318570ce49e77bf32f6c87ec9f25d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958943
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958943
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF1989871
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T01:38:48Z
    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 0xb7377d46c6757b02ea81af45f7a17d4acbf318570ce49e77bf32f6c87ec9f25d. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:38:48Z), 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/US3DF1989871.
      date published: 2026-07-21T01:38:48Z
    audio: Satu Jiwa
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.823
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.468
      additional property: Energy
        type: PropertyValue
        value: 0.437
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.044
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.085
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.366
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.8
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major