Chump Change
type: MusicGroup
popularity: 3
followers: 1030
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x820c5753473eeab901df18373fc798bd1409a7d564c989adeb79df97efa0bd6c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8926a83f-f462-47ad-b19a-bb7401e6759a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8926a83f-f462-47ad-b19a-bb7401e6759a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8926a83f-f462-47ad-b19a-bb7401e6759a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x820c5753473eeab901df18373fc798bd1409a7d564c989adeb79df97efa0bd6c","name":"Chump Change","registered_at":"2026-06-17T13:27:20Z","symbol":"NIM1409541","token_address":"0xd34f36b206c36a0104233169c4bad9e12e2b12f9","type":"artist","uuid":"8926a83f-f462-47ad-b19a-bb7401e6759a"}
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 0x820c5753473eeab901df18373fc798bd1409a7d564c989adeb79df97efa0bd6c. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8926a83f-f462-47ad-b19a-bb7401e6759a.json and https://artists.proofprofile.net/proofs/artist/8926a83f-f462-47ad-b19a-bb7401e6759a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x820c5753473eeab901df18373fc798bd1409a7d564c989adeb79df97efa0bd6c","name":"Chump Change","registered_at":"2026-06-17T13:27:20Z","symbol":"NIM1409541","token_address":"0xd34f36b206c36a0104233169c4bad9e12e2b12f9","type":"artist","uuid":"8926a83f-f462-47ad-b19a-bb7401e6759a"}
album: Lost
  type: MusicAlbum
  date published: 2019-07-17
album: Lost
  type: MusicAlbum
  date published: 2019-07-17
album: Lost
  type: MusicAlbum
  date published: 2019-07-17
album: Lost
  type: MusicAlbum
  date published: 2019-07-17
album: Lost
  type: MusicAlbum
  date published: 2019-07-17
album: Costumes
  type: MusicAlbum
  date published: 2020-01-11
album: Costumes
  type: MusicAlbum
  date published: 2020-01-11
album: Costumes
  type: MusicAlbum
  date published: 2020-01-11
album: Costumes
  type: MusicAlbum
  date published: 2020-11-01
album: Costumes
  type: MusicAlbum
  date published: 2020-11-01
album: Lucid Dreams
  type: MusicAlbum
  date published: 2021-07-14
album: Lucid Dreams
  type: MusicAlbum
  date published: 2021-07-14
album: Lucid Dreams
  type: MusicAlbum
  date published: 2021-07-14
album: Lucid Dreams
  type: MusicAlbum
  date published: 2021-07-14
album: Caroline
  type: MusicAlbum
  date published: 2021-12-17
album: Caroline
  type: MusicAlbum
  date published: 2021-12-17
album: Caroline
  type: MusicAlbum
  date published: 2021-12-17
album: Caroline
  type: MusicAlbum
  date published: 2021-12-17
album: Ocean Eyed Machine
  type: MusicAlbum
  date published: 2023-02-24
album: Ocean Eyed Machine
  type: MusicAlbum
  date published: 2023-02-24
album: Ocean Eyed Machine
  type: MusicAlbum
  date published: 2023-02-24
album: Good Kid
  type: MusicAlbum
  date published: 2023-12-15
  track: Good Kid
    type: MusicRecording
    duration: PT2M44S
    duration ms: 164785
    explicit: false
    by artist: Chump Change
    in album: Good Kid
      type: MusicAlbum
      date published: 2023-12-15
    isrc code: NZAM02224738
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T01:17:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2529bbf68fa52884d7009409dde213b2f4ac47dcb063aa73d2c70de81017692f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NZAM02224738
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0x2529bbf68fa52884d7009409dde213b2f4ac47dcb063aa73d2c70de81017692f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NZAM02224738.
      date published: 2026-07-06T01:26:17Z
    audio: Good Kid
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.055
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.573
      additional property: Energy
        type: PropertyValue
        value: 0.632
      additional property: Speechiness
        type: PropertyValue
        value: 0.025
      additional property: Acousticness
        type: PropertyValue
        value: 0.051
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.153
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.658
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.097
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Good Kid
  type: MusicAlbum
  date published: 2023-12-15