Keith Papworth
type: MusicGroup
genre: breakbeat
popularity: 7
followers: 293
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x696adb8f238f7cf99fa3e0cfd1ee6f2dd7e4f907feca1fe75f334cd7a99506b5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/198d7aa6-5fe5-4274-9da1-52d8e7fb8b61.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/198d7aa6-5fe5-4274-9da1-52d8e7fb8b61.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/198d7aa6-5fe5-4274-9da1-52d8e7fb8b61
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:28:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x696adb8f238f7cf99fa3e0cfd1ee6f2dd7e4f907feca1fe75f334cd7a99506b5","name":"Keith Papworth","registered_at":"2026-06-15T22:20:20Z","symbol":"NIM0849572","token_address":"0x15691efb46d401b03192c512f268952c291163d4","type":"artist","uuid":"198d7aa6-5fe5-4274-9da1-52d8e7fb8b61"}
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 0x696adb8f238f7cf99fa3e0cfd1ee6f2dd7e4f907feca1fe75f334cd7a99506b5. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/198d7aa6-5fe5-4274-9da1-52d8e7fb8b61.json and https://artists.proofprofile.net/proofs/artist/198d7aa6-5fe5-4274-9da1-52d8e7fb8b61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x696adb8f238f7cf99fa3e0cfd1ee6f2dd7e4f907feca1fe75f334cd7a99506b5","name":"Keith Papworth","registered_at":"2026-06-15T22:20:20Z","symbol":"NIM0849572","token_address":"0x15691efb46d401b03192c512f268952c291163d4","type":"artist","uuid":"198d7aa6-5fe5-4274-9da1-52d8e7fb8b61"}
album: Hard Hitter
  type: MusicAlbum
  date published: 1975-02-05
track: Out of the Blue, "Marine 4-Step or Eva 3-Step" (BBC Sports Report)

Out of the Blue, "Marine 4-Step or Eva 3-Step" (BBC Sports Report)
type: MusicRecording
duration: PT4M3S
duration ms: 243000
explicit: false
by artist: Hubert Bath
by artist: Keith Papworth
by artist: Royal Philharmonic Orchestra
by artist: Gavin Sutherland
in album: Vintage Tv And Radio Classics
  type: MusicAlbum
  date published: 2007-03-27
popularity: 3
isrc code: HKI190647816
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:55:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4d5592da09e90c76ac5ea49f48d54c40054d6ac80870d706d20f83688cfb108c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190647816
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5592da09e90c76ac5ea49f48d54c40054d6ac80870d706d20f83688cfb108c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKI190647816.
  date published: 2026-07-08T03:20:19Z
audio: Out of the Blue, "Marine 4-Step or Eva 3-Step" (BBC Sports Report)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.247
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.729
  additional property: Energy
    type: PropertyValue
    value: 0.245
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.873
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.942
  additional property: Liveness
    type: PropertyValue
    value: 0.075
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.887
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.161
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major