Kayper
type: MusicGroup
description: Kayper (born 6 August 1983) is a British DJ, music producer, and broadcaster. She hosted several shows on the BBC Asian Network and BBC Radio 1Xtra between 2006 and 2012, and is known for her contribu
popularity: 10
followers: 2520
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSProofURL
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additional property: OTSRecordURL
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  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46dcb2072d1ebd809201aa472ca57bc96a0a061bc29a289b465f5f52ba749c1. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e22b49f-89cc-4573-ab7b-49500bf3b109.json and https://artists.proofprofile.net/proofs/artist/1e22b49f-89cc-4573-ab7b-49500bf3b109.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
album: Magic Faces
  type: MusicAlbum
  date published: 2013-12-02
album: Out My Mind
  type: MusicAlbum
  date published: 2014-02-18
album: Out My Mind
  type: MusicAlbum
  date published: 2014-02-18
album: Out My Mind (Radio Edit)
  type: MusicAlbum
  date published: 2014-03-17
  track: Out My Mind (Radio Edit)
    type: MusicRecording
    duration: PT3M36S
    duration ms: 216600
    explicit: false
    by artist: Kayper
    in album: Out My Mind (Radio Edit)
      type: MusicAlbum
      date published: 2014-03-17
    isrc code: SEWDL6021820
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    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a912219499e38bd0b5695786e1cc632631fbece42a72afac86683bf7eb5a0fe. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEWDL6021820.
      date published: 2026-07-04T10:04:33Z
    audio: Out My Mind (Radio Edit)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.945
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.641
      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.003
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.932
      additional property: Liveness
        type: PropertyValue
        value: 0.085
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.27
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.547
      additional property: Key Name
        type: PropertyValue
        value: C#
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album: Someone
  type: MusicAlbum
  date published: 2014-06-16
album: Someone
  type: MusicAlbum
  date published: 2014-06-16
album: Someone
  type: MusicAlbum
  date published: 2014-06-16
album: Someone
  type: MusicAlbum
  date published: 2014-07-14
album: Someone
  type: MusicAlbum
  date published: 2014-12-09
album: Terminal
  type: MusicAlbum
  date published: 2015-06-03
  track: Terminal
    type: MusicRecording
    duration: PT4M44S
    duration ms: 284000
    explicit: false
    by artist: Kayper
    in album: Terminal
      type: MusicAlbum
      date published: 2015-06-03
    isrc code: GBKPL1400024
    additional property: CopyrightID
    additional property: CopyrightStatus
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      value: registered
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1400024
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T06:09:33Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b944a7ba226f1a5d59c5bd94b1c3642e99ce8732d16fb36393334eae78e651. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBKPL1400024.
      date published: 2026-07-17T06:09:33Z
    audio: Terminal
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.954
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: What You Say
album: What You Say (feat. Jonny Winston)
album: What You Say (Remixes)
album: What You Say (feat. Jonny Winston) [Remixes]
album: Sweet Reminder EP
album: Memories EP
album: Clap Your Hands
album: Your Love
album: Rain
album: Burning Up
album: Wut Wut
album: Another Love
album: Warning / Jungle
album: Warning/Jungle
album: Champion Sound/Uprising
album: Let The Music Lift/I Know You're Able
track: Terminal

Time Signature
type: PropertyValue
value: 4

Danceability
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value: 0.608

Energy
type: PropertyValue
value: 0.769

Speechiness
type: PropertyValue
value: 0.03

Acousticness
type: PropertyValue
value: 0.001

Instrumentalness
type: PropertyValue
value: 0.009

Liveness
type: PropertyValue
value: 0.111

Valence (Positivity)
type: PropertyValue
value: 0.218

Loudness (dB)
type: PropertyValue
value: -7.126

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

Terminal
type: MusicAlbum
date published: 2015-06-26

What You Say
type: MusicAlbum
date published: 2015-10-29

What You Say (feat. Jonny Winston)
type: MusicAlbum
date published: 2015-11-27

What You Say (Remixes)
type: MusicAlbum
date published: 2016-02-19

What You Say (feat. Jonny Winston) [Remixes]
type: MusicAlbum
date published: 2016-03-11

Sweet Reminder EP
type: MusicAlbum
date published: 2017-04-28

Memories EP
type: MusicAlbum
date published: 2019-02-15

Clap Your Hands
type: MusicAlbum
date published: 2019-10-07

Your Love
type: MusicAlbum
date published: 2019-11-22

Your Love
type: MusicAlbum
date published: 2019-11-22

Rain
type: MusicAlbum
date published: 2022-06-03

Burning Up
type: MusicAlbum
date published: 2023-03-24

Wut Wut
type: MusicAlbum
date published: 2023-07-21

Another Love
type: MusicAlbum
date published: 2024-03-08

Another Love
type: MusicAlbum
date published: 2024-03-08

Warning / Jungle
type: MusicAlbum
date published: 2024-09-13

Warning/Jungle
type: MusicAlbum
date published: 2024-09-13

Champion Sound/Uprising
type: MusicAlbum
date published: 2024-10-25

Champion Sound/Uprising
type: MusicAlbum
date published: 2024-10-25

Let The Music Lift/I Know You're Able
type: MusicAlbum
date published: 2024-12-06

Let The Music Lift/I Know You're Able
type: MusicAlbum
date published: 2024-12-06

Terminal
type: MusicRecording
duration: PT4M44S
duration ms: 284000
explicit: false
by artist: Kayper
by artist: Janai
in album: Eton Messy Compilation
  type: MusicAlbum
  date published: 2015-07-20
isrc code: GBKPL1400024
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1400024
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:53:07Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b944a7ba226f1a5d59c5bd94b1c3642e99ce8732d16fb36393334eae78e651. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/GBKPL1400024.
  date published: 2026-07-30T14:53:07Z
audio: Terminal
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.569
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.608
  additional property: Energy
    type: PropertyValue
    value: 0.769
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.001
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.009
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.218
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.193
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major