DUCO
type: MusicGroup
description: Duco was a trade name for a product line of automotive lacquer developed by the DuPont Company in the 1920s. Under the Duco brand, DuPont introduced the first quick drying multicolor line of nitrocell
popularity: 13
followers: 875
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4afb9ab58c93aa4d1fd483c94310025e533679b3004456aa36fe10b01b660957
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/56fb76e5-427e-4f86-8d1a-940e5bb56473.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/56fb76e5-427e-4f86-8d1a-940e5bb56473.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/56fb76e5-427e-4f86-8d1a-940e5bb56473
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T17:49:01Z
additional property: OTSCanonicalRecord
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 0x4afb9ab58c93aa4d1fd483c94310025e533679b3004456aa36fe10b01b660957. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56fb76e5-427e-4f86-8d1a-940e5bb56473.json and https://artists.proofprofile.net/proofs/artist/56fb76e5-427e-4f86-8d1a-940e5bb56473.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:49:28Z
album: Melody
  type: MusicAlbum
  date published: 2020-01-10
album: Let Me Sing For You
  type: MusicAlbum
  date published: 2020-02-28
album: Keeps Me High
  type: MusicAlbum
  date published: 2020-04-17
album: Love Me Better
  type: MusicAlbum
  date published: 2020-06-12
album: I Need You
  type: MusicAlbum
  date published: 2020-07-24
album: Lies
  type: MusicAlbum
  date published: 2020-09-25
album: Replace You
  type: MusicAlbum
  date published: 2020-11-07
album: Show Me How
  type: MusicAlbum
  date published: 2021-02-19
album: Alone
  type: MusicAlbum
  date published: 2021-04-09
album: Back Around
  type: MusicAlbum
  date published: 2021-06-04
album: Abuse Me
  type: MusicAlbum
  date published: 2021-10-01
album: Your Heart Is in Debt
  type: MusicAlbum
  date published: 2022-02-01
album: Into Dust
  type: MusicAlbum
  date published: 2022-02-04
album: Your Heart Is in Debt
  type: MusicAlbum
  date published: 2022-04-15
album: Your Heart Is in Debt
  type: MusicAlbum
  date published: 2022-04-15
album: Feeling Myself
  type: MusicAlbum
  date published: 2022-11-04
album: Feeling Myself
  type: MusicAlbum
  date published: 2022-11-04
album: Darkness
  type: MusicAlbum
  date published: 2023-03-10
album: Promises
  type: MusicAlbum
  date published: 2024-11-15
  track: Promises
    type: MusicRecording
    duration: PT2M43S
    duration ms: 163540
    explicit: false
    by artist: DUCO
    in album: Promises
      type: MusicAlbum
      date published: 2024-11-15
    isrc code: GXESV2456843
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T06:57:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf25b61dc7e60a44c96803d4df56a209e4a893e74c5492fc0bf610433d09e2f38
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958517
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958517
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXESV2456843
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T07:54:29Z
    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 0xf25b61dc7e60a44c96803d4df56a209e4a893e74c5492fc0bf610433d09e2f38. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GXESV2456843.
      date published: 2026-07-18T07:54:29Z
    audio: Promises
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 160.005
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.427
      additional property: Energy
        type: PropertyValue
        value: 0.728
      additional property: Speechiness
        type: PropertyValue
        value: 0.288
      additional property: Acousticness
        type: PropertyValue
        value: 0.053
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.103
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.118
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.024
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor