Up Front
type: MusicGroup
genre: hardcore
genre: hardcore punk
popularity: 9
followers: 5141
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdf9cfdad29fa9fb3b29f2e62b431429a0b808644540da7c19818657bdd4b59d2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/99cb3a53-d9ba-4fee-84d1-09de6c3598b8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/99cb3a53-d9ba-4fee-84d1-09de6c3598b8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/99cb3a53-d9ba-4fee-84d1-09de6c3598b8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdf9cfdad29fa9fb3b29f2e62b431429a0b808644540da7c19818657bdd4b59d2","name":"Up Front","registered_at":"2026-06-17T19:17:25Z","symbol":"NIM1493115","token_address":"0x3ec6c48b7dec1db02b4d29be389adea2d1297da6","type":"artist","uuid":"99cb3a53-d9ba-4fee-84d1-09de6c3598b8"}
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 0xdf9cfdad29fa9fb3b29f2e62b431429a0b808644540da7c19818657bdd4b59d2. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99cb3a53-d9ba-4fee-84d1-09de6c3598b8.json and https://artists.proofprofile.net/proofs/artist/99cb3a53-d9ba-4fee-84d1-09de6c3598b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xdf9cfdad29fa9fb3b29f2e62b431429a0b808644540da7c19818657bdd4b59d2","name":"Up Front","registered_at":"2026-06-17T19:17:25Z","symbol":"NIM1493115","token_address":"0x3ec6c48b7dec1db02b4d29be389adea2d1297da6","type":"artist","uuid":"99cb3a53-d9ba-4fee-84d1-09de6c3598b8"}
album: Spirit
  type: MusicAlbum
  date published: 1988
  track: Once and for all
    type: MusicRecording
    duration: PT2M18S
    duration ms: 138019
    explicit: false
    by artist: Up Front
    in album: Spirit
      type: MusicAlbum
      date published: 1988
    genre: hardcore
    genre: hardcore punk
    isrc code: USA370308996
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T01:34:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x842b3cc9facf156d8de150cf57685708ae91776fa11bfd067bc0467b82835111
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958349
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958349
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA370308996
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T04:35:53Z
    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 0x842b3cc9facf156d8de150cf57685708ae91776fa11bfd067bc0467b82835111. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:35:53Z), 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/USA370308996.
      date published: 2026-07-17T04:35:53Z
    audio: Once and for all
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.456
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 1
      additional property: Danceability
        type: PropertyValue
        value: 0.396
      additional property: Energy
        type: PropertyValue
        value: 0.953
      additional property: Speechiness
        type: PropertyValue
        value: 0.095
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.006
      additional property: Liveness
        type: PropertyValue
        value: 0.048
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.205
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.386
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Movement
  type: MusicAlbum
  date published: 1997
album: Five By Seven
  type: MusicAlbum
  date published: 2004