Perfect Cadence
type: MusicGroup
popularity: 6
followers: 81
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeac3d1279e4c90b0976fbd8c219e71cee4e94dc0bf10c93cf72014806aa0575f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d55b2a0-87dd-437d-a57a-a99f32e36687.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d55b2a0-87dd-437d-a57a-a99f32e36687.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3d55b2a0-87dd-437d-a57a-a99f32e36687
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeac3d1279e4c90b0976fbd8c219e71cee4e94dc0bf10c93cf72014806aa0575f","name":"Perfect Cadence","registered_at":"2026-06-16T10:55:34Z","symbol":"NIM1029917","token_address":"0xb69729bbd70ba1f67545cc6e00c3bb6f75dde190","type":"artist","uuid":"3d55b2a0-87dd-437d-a57a-a99f32e36687"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac3d1279e4c90b0976fbd8c219e71cee4e94dc0bf10c93cf72014806aa0575f. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d55b2a0-87dd-437d-a57a-a99f32e36687.json and https://artists.proofprofile.net/proofs/artist/3d55b2a0-87dd-437d-a57a-a99f32e36687.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T02:39:28Z
  text: {"copyright_id":"0xeac3d1279e4c90b0976fbd8c219e71cee4e94dc0bf10c93cf72014806aa0575f","name":"Perfect Cadence","registered_at":"2026-06-16T10:55:34Z","symbol":"NIM1029917","token_address":"0xb69729bbd70ba1f67545cc6e00c3bb6f75dde190","type":"artist","uuid":"3d55b2a0-87dd-437d-a57a-a99f32e36687"}
album: Perfect Cadence
  type: MusicAlbum
  date published: 2018-06-05
album: Born to Be Dreamers
  type: MusicAlbum
  date published: 2020-01-31
album: Save Me Everyday
  type: MusicAlbum
  date published: 2020-04-10
album: Save Me Everyday
  type: MusicAlbum
  date published: 2020-04-10
album: Inferno
  type: MusicAlbum
  date published: 2020-07-24
album: Reflections
  type: MusicAlbum
  date published: 2021-02-20
album: Let's Write a Love Song
  type: MusicAlbum
  date published: 2024-03-01
album: Lonely Streets
  type: MusicAlbum
  date published: 2024-06-07
album: Hero
  type: MusicAlbum
  date published: 2024-09-06
  track: Hero
    type: MusicRecording
    duration: PT4M21S
    duration ms: 261226
    explicit: false
    by artist: Perfect Cadence
    in album: Hero
      type: MusicAlbum
      date published: 2024-09-06
    isrc code: GBMA22396114
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T03:40:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x202698f36c9a732cce724c5c09f263208c97943a3d023ffe82061fb0cc02cfe5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958104
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958104
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMA22396114
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T05:34:05Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202698f36c9a732cce724c5c09f263208c97943a3d023ffe82061fb0cc02cfe5. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMA22396114 — a six-check JSON result.
      date published: 2026-07-15T05:34:05Z
    audio: Hero
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 186.176
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.347
      additional property: Energy
        type: PropertyValue
        value: 0.894
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0.029
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.331
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.379
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.432
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Lonely Streets
  type: MusicAlbum
  date published: 2025-04-04
album: Let's Write a Love Song
  type: MusicAlbum
  date published: 2025-06-22
album: Lonely Streets
  type: MusicAlbum
  date published: 2025-08-15