Janet Leon
type: MusicGroup
description: Janet Ava Owji (born 19 October 1990), also known by her stage name OWJI and her former stage name Janet Leon, is a Swedish singer, songwriter and A&R. Leon began her career as part of the pop group P
popularity: 8
followers: 1421
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb93cce0e1586135344bcc5d5e487ad401b2fb6306f6c2b7e2adf532cffec439f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15939947-dfcc-419b-ba1b-f144349c723e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15939947-dfcc-419b-ba1b-f144349c723e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/15939947-dfcc-419b-ba1b-f144349c723e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb93cce0e1586135344bcc5d5e487ad401b2fb6306f6c2b7e2adf532cffec439f","name":"Janet Leon","registered_at":"2026-06-15T20:58:05Z","symbol":"NIM0829958","token_address":"0x55c55f11c5bec995038aad2d505d58a0b462eb47","type":"artist","uuid":"15939947-dfcc-419b-ba1b-f144349c723e"}
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 0xb93cce0e1586135344bcc5d5e487ad401b2fb6306f6c2b7e2adf532cffec439f. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15939947-dfcc-419b-ba1b-f144349c723e.json and https://artists.proofprofile.net/proofs/artist/15939947-dfcc-419b-ba1b-f144349c723e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:05:05Z
  text: {"copyright_id":"0xb93cce0e1586135344bcc5d5e487ad401b2fb6306f6c2b7e2adf532cffec439f","name":"Janet Leon","registered_at":"2026-06-15T20:58:05Z","symbol":"NIM0829958","token_address":"0x55c55f11c5bec995038aad2d505d58a0b462eb47","type":"artist","uuid":"15939947-dfcc-419b-ba1b-f144349c723e"}
album: Let Go
  type: MusicAlbum
  date published: 2009-01-21
album: Janet
  type: MusicAlbum
  date published: 2009-02-18
album: Heartache On The Dance Floor
  type: MusicAlbum
  date published: 2009-05-25
album: New Colours (Remixes)
  type: MusicAlbum
  date published: 2013
album: Heartstrings (Remixes)
  type: MusicAlbum
  date published: 2013
album: Heartstrings
  type: MusicAlbum
  date published: 2013
  track: Heartstrings
    type: MusicRecording
    duration: PT3M1S
    duration ms: 181653
    explicit: false
    by artist: Janet Leon
    in album: Heartstrings
      type: MusicAlbum
      date published: 2013
    isrc code: SEUM71201644
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T09:34:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xffe20e6a88b3b793ee2602faa7e863ef68824b520162ad2d640af8341e524d71
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM71201644
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0xffe20e6a88b3b793ee2602faa7e863ef68824b520162ad2d640af8341e524d71. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEUM71201644.
      date published: 2026-07-03T19:59:51Z
    audio: Heartstrings
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.094
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.585
      additional property: Energy
        type: PropertyValue
        value: 0.918
      additional property: Speechiness
        type: PropertyValue
        value: 0.138
      additional property: Acousticness
        type: PropertyValue
        value: 0.049
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.015
      additional property: Liveness
        type: PropertyValue
        value: 0.262
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.509
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.954
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: New Colours
  type: MusicAlbum
  date published: 2013
album: Heartstrings (Remixes)
  type: MusicAlbum
  date published: 2013-01-01
album: Heartstrings
  type: MusicAlbum
  date published: 2013-01-01
album: New Colours
  type: MusicAlbum
  date published: 2013-05-07
album: New Colours (Remixes)
  type: MusicAlbum
  date published: 2013-07-29
album: Hollow
  type: MusicAlbum
  date published: 2014
album: Hollow
  type: MusicAlbum
  date published: 2014-01-01
  track: Hollow
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182240
    explicit: false
    by artist: Janet Leon
    in album: Hollow
      type: MusicAlbum
      date published: 2014-01-01
    isrc code: SEYQH1302201
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T12:08:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4840c1c2a1279734e9bb2d957c4ae0145e881cfb8742b7f5189b5f5bf0f2c6f5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956560
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956560
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEYQH1302201
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T23:28:02Z
    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 0x4840c1c2a1279734e9bb2d957c4ae0145e881cfb8742b7f5189b5f5bf0f2c6f5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SEYQH1302201.
      date published: 2026-07-03T23:28:02Z
    audio: Hollow

Hollow
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 120.091
additional property: Musical Key
  type: PropertyValue
  value: 6
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.559
additional property: Energy
  type: PropertyValue
  value: 0.74
additional property: Speechiness
  type: PropertyValue
  value: 0.033
additional property: Acousticness
  type: PropertyValue
  value: 0.03
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.19
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.363
additional property: Loudness (dB)
  type: PropertyValue
  value: -4.007
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Minor

Hollow
type: MusicAlbum
date published: 2015-05-08