Epitone Project
type: MusicGroup
genre: k-ballad
description: Cha Se-jeong (), also known as his one-man band Epitone Project (), is a South Korean composer and singer. As the sole member, he composes and performs his own songs while also collaborating with vari
popularity: 35
followers: 30763
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4ea2eb4297006f0c570f024629c2926c5ed8753c8e0873c297e0825c0d226b5b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3dd88e35-1e4b-4c63-ae6d-cf06a05520c6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3dd88e35-1e4b-4c63-ae6d-cf06a05520c6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3dd88e35-1e4b-4c63-ae6d-cf06a05520c6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 0x4ea2eb4297006f0c570f024629c2926c5ed8753c8e0873c297e0825c0d226b5b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3dd88e35-1e4b-4c63-ae6d-cf06a05520c6.json and https://artists.proofprofile.net/proofs/artist/3dd88e35-1e4b-4c63-ae6d-cf06a05520c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
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album: 1229
  type: MusicAlbum
  date published: 2006-12-12
album: 1229
  type: MusicAlbum
  date published: 2006-12-12
album: At Your Favorite Place
  type: MusicAlbum
  date published: 2008-04-16
album: At Your Favorite Place
  type: MusicAlbum
  date published: 2008-04-23
album: 사랑의 단상 Chapter 1 : With Or Without You
  type: MusicAlbum
  date published: 2008-10-02
album: 사랑의 단상 Chapter 1 : With Or Without You
  type: MusicAlbum
  date published: 2008-10-02
album: 긴 여행의 시작
  type: MusicAlbum
  date published: 2009-02-24
  track: 환절기
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    duration: PT2M45S
    duration ms: 165146
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    in album: 긴 여행의 시작
      type: MusicAlbum
      date published: 2009-02-24
    genre: k-ballad
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    additional property: CopyrightStatus
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    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 0x96e85aa137d2ea4bbaaaa63fcbce8cdf8314fa61a384758a453410b577d9c5eb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRA340920469.
      date published: 2026-07-02T16:51:38Z
    audio: 환절기
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        type: PropertyValue
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      additional property: Mode (Major/Minor)
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      additional property: Time Signature
        type: PropertyValue
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      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
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      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
        type: PropertyValue
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      additional property: Key Name
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        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 긴 여행의 시작
  type: MusicAlbum
  date published: 2009-02-24
album: 긴 여행의 시작
  type: MusicAlbum
  date published: 2009-02-24
album: 긴 여행의 시작
  type: MusicAlbum
  date published: 2009-02-25
album: 긴 여행의 시작
  type: MusicAlbum
  date published: 2009-02-25
album: 유실물 보관소
  type: MusicAlbum
  date published: 2010-05-12
album: 유실물 보관소
  type: MusicAlbum
  date published: 2010-05-12
album: 유실물 보관소
  type: MusicAlbum
  date published: 2010-05-12
  track: 시간
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222453
    explicit: false
    by artist: Epitone Project
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      type: MusicAlbum
      date published: 2010-05-12
    genre: k-ballad
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    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T08:30:53Z
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: 시간
  track: 유채꽃
album: Short Stories. 1 - 선인장
album: 첫번째, 방
album: Sakura Moment
album: Sakura Moment 꽃처럼 한철만 사랑해줄껀가요?
album: 자기만의 방
album: 열여덟, 열아홉 Original Television Soundtrack
album: 열여덟, 열아홉 (Original Television Soundtrack) : 봄날, 벚꽃 그리고 너
album: 낯선 도시에서의 하루
album: Casker & Fanny Fink Curated Ten Years After - 잡음
album: Casker & Fanny Fink Curated Ten Years After : Pastel Music 10th Anniversary
album: 각자의 밤
album: 이혼변호사는 연애중 (Original Soundtrack), Pt. 3
album: divorcelaywer (Original Television Soundtrack), Pt.3
album: 이혼변호사는 연애중 (Original Television Soundtrack), Pt. 3
album: divorcelaywer OST Part 3
album: Words in the mind
album: Chkpli, Vol. 2
album: 위로 : 에피톤 프로젝트 X 착플리 프로젝트 Vol. 2
album: Love, that suffocating moment : sketchbook
album: Extraordinary You Pt.4 (Original Television Soundtrack)
album: 도도솔솔라라솔 (Original Television Soundtrack) Pt. 8
album: 도도솔솔라라솔 OST Part.8
album: Sleepless (Vocal by YOUNHA)
album: Reason (Vocal by Kim Seonho)
album: STOP OVER
album: knock
track: 새벽녘
track: 초록

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064babeb4dc843437f918c3a41afbf4d5ef922cfc11cc230788208e9809cdc23. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:30:53Z), 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/KRA340925181.
date published: 2026-07-20T08:30:53Z

시간
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 198.365
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
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  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.353
additional property: Energy
  type: PropertyValue
  value: 0.168
additional property: Speechiness
  type: PropertyValue
  value: 0.088
additional property: Acousticness
  type: PropertyValue
  value: 0.993
additional property: Instrumentalness
  type: PropertyValue
  value: 0.961
additional property: Liveness
  type: PropertyValue
  value: 0.118
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.283
additional property: Loudness (dB)
  type: PropertyValue
  value: -22.365
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Major

유채꽃
type: MusicRecording
duration: PT3M18S
duration ms: 198573
explicit: false
by artist: Epitone Project
in album: 유실물 보관소
  type: MusicAlbum
  date published: 2010-05-12
genre: k-ballad
isrc code: KRA340925186
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T16:23:15+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958316
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958316
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA340925186
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T00:00:28Z
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 0x42e56356e88ea36605093a9da3d6ad5dac907941d1e003a2912e9aa030b637ce. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:00:28Z), 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/KRA340925186.
  date published: 2026-07-17T00:00:28Z
audio: 유채꽃
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
    type: PropertyValue
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.527
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Short Stories. 1 - 선인장
type: MusicAlbum
date published: 2010-06-29

Short Stories. 1 - 선인장
type: MusicAlbum
date published: 2010-06-29
track: 선인장 (feat. 차세정)
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  duration: PT4M15S
  duration ms: 255186
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    type: MusicAlbum
    date published: 2010-06-29
  genre: k-ballad
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
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  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 0xf882f94623df0ad1bdfaf18a196885d14a04910fcd3784fb2a081f33260ef2c7. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/KRA340926773.
    date published: 2026-07-16T02:46:47Z
  audio: 선인장 (feat. 차세정)
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    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
      value: 0.504
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.305
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.146
    additional property: Liveness
      type: PropertyValue
      value: 0.363
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.695
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.815
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

첫번째, 방
type: MusicAlbum
date published: 2010-10-29

첫번째, 방
type: MusicAlbum
date published: 2010-10-29

Sakura Moment
type: MusicAlbum
date published: 2011-05-19
track: Sakura Moment
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223503
  explicit: false
  by artist: Epitone Project
  in album: Sakura Moment
    type: MusicAlbum
    date published: 2011-05-19
  genre: k-ballad
  isrc code: KRA341213817
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  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/KRA341213817
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T16:51:38Z
  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 0x1c4b7e568ebc8136df506f8cc6600168f1c8c8c1dd8add6d3af5599567bcbbcf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRA341213817.
    date published: 2026-07-02T16:51:38Z
  audio: Sakura Moment
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
      type: PropertyValue
      value: 0.334
    additional property: Speechiness
      type: PropertyValue
      value: 0.144
    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Key Name
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    additional property: Mode Name
      type: PropertyValue
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Sakura Moment 꽃처럼 한철만 사랑해줄껀가요?
type: MusicAlbum
date published: 2011-05-19

자기만의 방
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date published: 2011-09-07
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-05T01:12:41Z
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track: 웃음 (with Epitone Project)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-05T19:27:56Z
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열여덟, 열아홉 Original Television Soundtrack
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date published: 2012-02-24

열여덟, 열아홉 (Original Television Soundtrack) : 봄날, 벚꽃 그리고 너
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date published: 2012-02-24

낯선 도시에서의 하루
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date published: 2012-06-07
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-03T21:18:05Z
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track: The Time Difference
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-20T09:45:25Z
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track: Time to Leave
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track: Minuet

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OTSVerifyInstructions
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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

OpenTimestamps Proof of Existence
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date published: 2026-07-19T10:15:55Z

Time to Leave
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Minuet
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genre: k-ballad
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-16T01:59:04Z
audio: Minuet
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낯선 도시에서의 하루
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date published: 2012-06-07

Casker & Fanny Fink Curated Ten Years After - 잡음
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date published: 2013-01-09

Casker & Fanny Fink Curated Ten Years After : Pastel Music 10th Anniversary
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date published: 2013-01-09

각자의 밤
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date published: 2014-09-16

각자의 밤
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date published: 2014-09-16
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    date published: 2026-07-18T08:54:12Z
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각자의 밤
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이혼변호사는 연애중 (Original Soundtrack), Pt. 3
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divorcelaywer (Original Television Soundtrack), Pt.3
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이혼변호사는 연애중 (Original Television Soundtrack), Pt. 3
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divorcelaywer OST Part 3
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Words in the mind
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Chkpli, Vol. 2
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date published: 2018-12-18

위로 : 에피톤 프로젝트 X 착플리 프로젝트 Vol. 2
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date published: 2018-12-18

Love, that suffocating moment : sketchbook
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Extraordinary You Pt.4 (Original Television Soundtrack)
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Extraordinary You Pt.4 (Original Television Soundtrack)
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도도솔솔라라솔 (Original Television Soundtrack) Pt. 8
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도도솔솔라라솔 OST Part.8
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Sleepless (Vocal by YOUNHA)
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date published: 2020-12-15

Reason (Vocal by Kim Seonho)
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date published: 2021-05-06

STOP OVER
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61af28a6f482133fa1fc96443330cf4fff1190a0ed8a807948d949425d733d18. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/KRA382204881.
    date published: 2026-07-19T03:36:41Z
  audio: free fall
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.857
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.685
    additional property: Energy
      type: PropertyValue
      value: 0.451
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.319
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.099
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.664
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.138
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: bittersweet
  type: MusicRecording
  duration: PT3M28S
  duration ms: 208120
  explicit: false
  by artist: Epitone Project
  in album: STOP OVER
    type: MusicAlbum
    date published: 2022-05-24
  genre: k-ballad
  isrc code: KRA382204882
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T18:06:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0b5a6a81d34e4c4fc016555c803e28ae0d385dc9eb6a85912ca747a6740b3042
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958924
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958924
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA382204882
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T21:13:53Z
  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 0x0b5a6a81d34e4c4fc016555c803e28ae0d385dc9eb6a85912ca747a6740b3042. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:13:53Z), 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/KRA382204882.
    date published: 2026-07-20T21:13:53Z
  audio: bittersweet
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.082
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.615
    additional property: Energy
      type: PropertyValue
      value: 0.573
    additional property: Speechiness
      type: PropertyValue
      value: 0.027
    additional property: Acousticness
      type: PropertyValue
      value: 0.388
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.465
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.608
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.418
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: l'adieu
  type: MusicRecording
  duration: PT2M52S
  duration ms: 172520
  explicit: false
  by artist: Epitone Project
  in album: STOP OVER
    type: MusicAlbum
    date published: 2022-05-24
  genre: k-ballad
  isrc code: KRA382204883
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T12:46:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa285e4ada6d01b93b1b22b525ad87516895c346d059947636ee96bfbe21c8074
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: l'adieu

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA382204883

OTSTimestamp
type: PropertyValue
value: 2026-07-05T01:12:41Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa285e4ada6d01b93b1b22b525ad87516895c346d059947636ee96bfbe21c8074. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRA382204883.
date published: 2026-07-05T01:12:41Z

l'adieu
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 105.258
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.7
additional property: Energy
  type: PropertyValue
  value: 0.175
additional property: Speechiness
  type: PropertyValue
  value: 0.057
additional property: Acousticness
  type: PropertyValue
  value: 0.972
additional property: Instrumentalness
  type: PropertyValue
  value: 0.936
additional property: Liveness
  type: PropertyValue
  value: 0.127
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.127
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.842
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

knock
type: MusicAlbum
date published: 2023-11-16

새벽녘
type: MusicRecording
duration: PT5M30S
duration ms: 330906
explicit: false
by artist: Epitone Project
in album: Sky: Kim Haneul & Pastel Music Compilation
  type: MusicAlbum
  date published: 2013-01-30
isrc code: KRA341222624
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:30:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f7c265fa5ba2228d256346fa676fa41a1b70cd9863166b425fd65692573004f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA341222624
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0x3f7c265fa5ba2228d256346fa676fa41a1b70cd9863166b425fd65692573004f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRA341222624.
  date published: 2026-07-08T03:22:41Z
audio: 새벽녘
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.947
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.578
  additional property: Energy
    type: PropertyValue
    value: 0.596
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.614
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.173
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.225
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.408
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

초록
type: MusicRecording
duration: PT3M10S
duration ms: 190826
explicit: false
by artist: Epitone Project
in album: 도도솔솔라라솔 (Original Television Soundtrack)
  type: MusicAlbum
  date published: 2020-12-02
isrc code: QZF452007555
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-29T21:26:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe37ff9010906aa1b66251d646244094cc46a425987c4a6932dcab320c25d900b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZF452007555
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0xe37ff9010906aa1b66251d646244094cc46a425987c4a6932dcab320c25d900b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZF452007555.
  date published: 2026-07-08T03:22:41Z
audio: 초록
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.144
  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: 0.61
  additional property: Energy
    type: PropertyValue
    value: 0.562
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.79
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.159
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.351
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.5
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major