Leon John
type: MusicGroup
genre: afro soul
popularity: 6
followers: 598
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x076819e21a8f34b649db7dad2cf2032a49ac9ce1f3bc83ea0975593a16b7a1cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953970
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953970
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a43524c-31bd-4818-b3a7-5928cc4579ae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a43524c-31bd-4818-b3a7-5928cc4579ae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2a43524c-31bd-4818-b3a7-5928cc4579ae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:09:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x076819e21a8f34b649db7dad2cf2032a49ac9ce1f3bc83ea0975593a16b7a1cc","name":"Leon John","registered_at":"2026-06-16T04:11:59Z","symbol":"NIM0933548","token_address":"0x2ebfc7f035c40c09b62e854a6dd703b3e5577ccf","type":"artist","uuid":"2a43524c-31bd-4818-b3a7-5928cc4579ae"}
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 0x076819e21a8f34b649db7dad2cf2032a49ac9ce1f3bc83ea0975593a16b7a1cc. Chain 2 (Bitcoin): anchored in block 953970 (2026-06-16T16:09:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a43524c-31bd-4818-b3a7-5928cc4579ae.json and https://artists.proofprofile.net/proofs/artist/2a43524c-31bd-4818-b3a7-5928cc4579ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:09:39Z
  text: {"copyright_id":"0x076819e21a8f34b649db7dad2cf2032a49ac9ce1f3bc83ea0975593a16b7a1cc","name":"Leon John","registered_at":"2026-06-16T04:11:59Z","symbol":"NIM0933548","token_address":"0x2ebfc7f035c40c09b62e854a6dd703b3e5577ccf","type":"artist","uuid":"2a43524c-31bd-4818-b3a7-5928cc4579ae"}
album: To Be Continued
  type: MusicAlbum
  date published: 2018-04-06
album: Somebody
  type: MusicAlbum
  date published: 2019-03-22
album: Somebody
  type: MusicAlbum
  date published: 2019-03-22
album: Pray for You
  type: MusicAlbum
  date published: 2019-08-16
album: To Be Continued
  type: MusicAlbum
  date published: 2020-05-08
album: License to Feel
  type: MusicAlbum
  date published: 2022-08-26
  track: At War
album: License to Feel (Deluxe)
  type: MusicAlbum
  date published: 2022-08-26
album: In the Morning
  type: MusicAlbum
  date published: 2024-12-13
album: I Keep on Trying
  type: MusicAlbum
  date published: 2025-08-29
album: HOW TO BE OK
  type: MusicAlbum
  date published: 2025-09-19

At War
type: MusicRecording
duration: PT3M8S
duration ms: 188255
explicit: false
by artist: Leon John
in album: License to Feel
  type: MusicAlbum
  date published: 2022-08-26
genre: afro soul
isrc code: TCAGK2262398
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T17:15:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1146d8db96669dc381d8f54398113523e29e6ac248795c35c91eea5bdb75c09f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGK2262398
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+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 0x1146d8db96669dc381d8f54398113523e29e6ac248795c35c91eea5bdb75c09f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCAGK2262398.
  date published: 2026-07-02T11:34:59Z
audio: At War
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.512
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.514
  additional property: Energy
    type: PropertyValue
    value: 0.244
  additional property: Speechiness
    type: PropertyValue
    value: 0.027
  additional property: Acousticness
    type: PropertyValue
    value: 0.797
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.101
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.235
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.566
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor