Negative Return
type: MusicGroup
genre: acid house
genre: acid techno
popularity: 3
followers: 558
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x61234d346d32678114eab20af11986378cceabc135d6cb7831fe29909efbd1c7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/766a7993-4998-40e6-8782-a022f71c8ad9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/766a7993-4998-40e6-8782-a022f71c8ad9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/766a7993-4998-40e6-8782-a022f71c8ad9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x61234d346d32678114eab20af11986378cceabc135d6cb7831fe29909efbd1c7","name":"Negative Return","registered_at":"2026-06-17T06:55:44Z","symbol":"NIM1316274","token_address":"0x8b523dd1e5c92df54ef8b8a92118fa5f5fc66b1e","type":"artist","uuid":"766a7993-4998-40e6-8782-a022f71c8ad9"}
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 0x61234d346d32678114eab20af11986378cceabc135d6cb7831fe29909efbd1c7. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/766a7993-4998-40e6-8782-a022f71c8ad9.json and https://artists.proofprofile.net/proofs/artist/766a7993-4998-40e6-8782-a022f71c8ad9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x61234d346d32678114eab20af11986378cceabc135d6cb7831fe29909efbd1c7","name":"Negative Return","registered_at":"2026-06-17T06:55:44Z","symbol":"NIM1316274","token_address":"0x8b523dd1e5c92df54ef8b8a92118fa5f5fc66b1e","type":"artist","uuid":"766a7993-4998-40e6-8782-a022f71c8ad9"}
album: First Light
  type: MusicAlbum
  date published: 1996-05-31
  track: First Light - Live Mix
    type: MusicRecording
    duration: PT10M21S
    duration ms: 621500
    explicit: false
    by artist: Negative Return
    in album: First Light
      type: MusicAlbum
      date published: 1996-05-31
    genre: acid house
    genre: acid techno
    isrc code: DEE829806700
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T08:14:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x415acf932ba538661b12c5543ad2da8e37869ee86d980c95f5bf7176145537d9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958987
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958987
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE829806700
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T11:09:31Z
    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 0x415acf932ba538661b12c5543ad2da8e37869ee86d980c95f5bf7176145537d9. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:09:31Z), 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/DEE829806700.
      date published: 2026-07-21T11:09:31Z
    audio: First Light - Live Mix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.865
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.674
      additional property: Energy
        type: PropertyValue
        value: 0.729
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.023
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.919
      additional property: Liveness
        type: PropertyValue
        value: 0.367
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.063
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.42
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Babylon will crush you
  type: MusicAlbum
  date published: 1996-06-28
album: Düsternis
  type: MusicAlbum
  date published: 1999-03-05