DOWNTOWN BRASS
type: MusicGroup
popularity: 4
followers: 119
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5f0d60cd45791d04c40ea1a779b9393d2d1730bb17ea0e49980f3e88f96fd50e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04fb04b4-190c-4720-ac03-a5294fa40ed3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04fb04b4-190c-4720-ac03-a5294fa40ed3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/04fb04b4-190c-4720-ac03-a5294fa40ed3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5f0d60cd45791d04c40ea1a779b9393d2d1730bb17ea0e49980f3e88f96fd50e","name":"DOWNTOWN BRASS","registered_at":"2026-06-15T15:10:07Z","symbol":"NIM0746937","token_address":"0xff1c741d7c9dd70e2fbfa97b8e1be276f7b347b1","type":"artist","uuid":"04fb04b4-190c-4720-ac03-a5294fa40ed3"}
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 0x5f0d60cd45791d04c40ea1a779b9393d2d1730bb17ea0e49980f3e88f96fd50e. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04fb04b4-190c-4720-ac03-a5294fa40ed3.json and https://artists.proofprofile.net/proofs/artist/04fb04b4-190c-4720-ac03-a5294fa40ed3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x5f0d60cd45791d04c40ea1a779b9393d2d1730bb17ea0e49980f3e88f96fd50e","name":"DOWNTOWN BRASS","registered_at":"2026-06-15T15:10:07Z","symbol":"NIM0746937","token_address":"0xff1c741d7c9dd70e2fbfa97b8e1be276f7b347b1","type":"artist","uuid":"04fb04b4-190c-4720-ac03-a5294fa40ed3"}
album: STREET VIEW
  type: MusicAlbum
  date published: 2024-03-15
  track: Daft Punk Medley
    type: MusicRecording
    duration: PT4M7S
    duration ms: 247591
    explicit: false
    by artist: DOWNTOWN BRASS
    in album: STREET VIEW
      type: MusicAlbum
      date published: 2024-03-15
    isrc code: PL35U2200008
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T14:14:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1d26cd9e0b7fd8fbdcb841e0e07679d2affd23124d37e187bdc105aa7b3de93e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958601
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958601
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL35U2200008
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:27:02Z
    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 0x1d26cd9e0b7fd8fbdcb841e0e07679d2affd23124d37e187bdc105aa7b3de93e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/PL35U2200008.
      date published: 2026-07-18T19:27:02Z
    audio: Daft Punk Medley
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.937
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.759
      additional property: Energy
        type: PropertyValue
        value: 0.682
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.356
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.688
      additional property: Liveness
        type: PropertyValue
        value: 0.131
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.383
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.436
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major