Bill Barber & The Holding Cell
type: MusicGroup
popularity: 5
followers: 378
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x678f63369adf5467221b9d8bcca9e8c759b58b4c485ba70cb98355636fad3e19
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954014
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954014
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33668869-328c-4a07-aea0-5e524811090e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33668869-328c-4a07-aea0-5e524811090e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/33668869-328c-4a07-aea0-5e524811090e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:46:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x678f63369adf5467221b9d8bcca9e8c759b58b4c485ba70cb98355636fad3e19","name":"Bill Barber & The Holding Cell","registered_at":"2026-06-16T07:29:02Z","symbol":"NIM0980622","token_address":"0x572537a0d88a28d3f5acf190f995355273d71599","type":"artist","uuid":"33668869-328c-4a07-aea0-5e524811090e"}
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 0x678f63369adf5467221b9d8bcca9e8c759b58b4c485ba70cb98355636fad3e19. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33668869-328c-4a07-aea0-5e524811090e.json and https://artists.proofprofile.net/proofs/artist/33668869-328c-4a07-aea0-5e524811090e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x678f63369adf5467221b9d8bcca9e8c759b58b4c485ba70cb98355636fad3e19","name":"Bill Barber & The Holding Cell","registered_at":"2026-06-16T07:29:02Z","symbol":"NIM0980622","token_address":"0x572537a0d88a28d3f5acf190f995355273d71599","type":"artist","uuid":"33668869-328c-4a07-aea0-5e524811090e"}
album: Hammer
  type: MusicAlbum
  date published: 2024-05-16
album: Different Kind of Free
  type: MusicAlbum
  date published: 2024-06-28
album: At Muscle Shoals
  type: MusicAlbum
  date published: 2024-07-27
album: FYDL
  type: MusicAlbum
  date published: 2025-07-18
album: Hard to breathe
  type: MusicAlbum
  date published: 2025-08-29
  track: Hard to breathe
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217714
    explicit: false
    by artist: Bill Barber & The Holding Cell
    in album: Hard to breathe
      type: MusicAlbum
      date published: 2025-08-29
    isrc code: QZWFV2542324
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T03:22:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1fcefae9f5f8df920c4bfff5655dca9d60f78ff98616186646d3421f10e815ae
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958690
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFV2542324
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    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 0x1fcefae9f5f8df920c4bfff5655dca9d60f78ff98616186646d3421f10e815ae. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZWFV2542324.
      date published: 2026-07-19T07:14:39Z
    audio: Hard to breathe
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.674
      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: 0.51
      additional property: Energy
        type: PropertyValue
        value: 0.698
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.502
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.723
      additional property: Liveness
        type: PropertyValue
        value: 0.167
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.707
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.161
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Southern Redemption
  type: MusicAlbum
  date published: 2025-09-21