Hoàng Duyên
type: MusicGroup
genre: vietnamese lo-fi
genre: vietnam indie
genre: v-pop
popularity: 47
followers: 86722
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x432e575ee4f88c1cc1ad3be63eef9aac9fdca05f1cf309e73bb2b5a46d63636a
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/d9dcafe3-2246-41e1-88d8-2d1270760c3b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9dcafe3-2246-41e1-88d8-2d1270760c3b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d9dcafe3-2246-41e1-88d8-2d1270760c3b
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 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 0x432e575ee4f88c1cc1ad3be63eef9aac9fdca05f1cf309e73bb2b5a46d63636a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9dcafe3-2246-41e1-88d8-2d1270760c3b.json and https://artists.proofprofile.net/proofs/artist/d9dcafe3-2246-41e1-88d8-2d1270760c3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x432e575ee4f88c1cc1ad3be63eef9aac9fdca05f1cf309e73bb2b5a46d63636a","name":"Hoàng Duyên","registered_at":"2026-06-12T11:17:13Z","symbol":"NIM0281397","token_address":"0xd82d841ab20032b79b6b5904fcd3bd8ed646c45f","type":"artist","uuid":"d9dcafe3-2246-41e1-88d8-2d1270760c3b"}
album: Chàng Trai Sơ Mi Hồng
  type: MusicAlbum
  date published: 2021-03-12
album: Mê
  type: MusicAlbum
  date published: 2022-02-09
album: Mê (Lofi mixed by 1 9 6 7)
  type: MusicAlbum
  date published: 2022-02-16
album: Mưa Hồng
  type: MusicAlbum
  date published: 2022-06-14
album: Em Sẽ Báo Công An
  type: MusicAlbum
  date published: 2022-07-25
album: Vọng Nguyệt
  type: MusicAlbum
  date published: 2022-08-03
album: Rồi Mình Sẽ Gặp Nhau (Mười: Lời Nguyền Trở Lại Original Soundtrack)
  type: MusicAlbum
  date published: 2022-10-04
album: Sài Gòn Hôm Nay Mưa Hồng
  type: MusicAlbum
  date published: 2022-12-15
album: Bí Mật Của Hạnh Phúc
  type: MusicAlbum
  date published: 2023-09-14
  track: Bí Mật Của Hạnh Phúc
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217279
    explicit: false
    by artist: Hoàng Duyên
    in album: Bí Mật Của Hạnh Phúc
      type: MusicAlbum
      date published: 2023-09-14
    genre: vietnamese lo-fi
    genre: vietnam indie
    genre: v-pop
    isrc code: DGA092332254
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T21:13:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdb8ba03ae078c940e72e1ca54f54aa04a651d2861b0489861ae4222dd868f588
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958455
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958455
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA092332254
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T21:28:36Z
    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 0xdb8ba03ae078c940e72e1ca54f54aa04a651d2861b0489861ae4222dd868f588. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DGA092332254.
      date published: 2026-07-17T21:28:36Z
    audio: Bí Mật Của Hạnh Phúc
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.006
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.849
      additional property: Energy
        type: PropertyValue
        value: 0.5
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.463
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.075
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.923
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.307
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Bí Mật Của Hạnh Phúc
  type: MusicAlbum
  date published: 2023-09-14
album: trên taxi chẳng muốn về nhà
  type: MusicAlbum
  date published: 2023-11-09
album: trên taxi chẳng muốn về nhà
  type: MusicAlbum
  date published: 2023-11-23
  track: trên taxi chẳng muốn về nhà - lofi ver.
    type: MusicRecording
    duration: PT3M28S
    duration ms: 208991
    explicit: false
    by artist: Hoàng Duyên
    in album: trên taxi chẳng muốn về nhà
      type: MusicAlbum
      date published: 2023-11-23
    genre: vietnamese lo-fi
    genre: vietnam indie
    genre: v-pop
    isrc code: SGUM72301627
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T01:40:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3af1e651175ba9dcc6d48f3f2a2a22dbeaf6aec39e11d7546d3d28cbe26df88f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958224
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958224
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SGUM72301627
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T02:28:43Z
    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
    audio: trên taxi chẳng muốn về nhà - lofi ver.
album: Bình Minh
album: She Never Cries
track: Lắng Nghe (Theme song Sephera NoVa)

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af1e651175ba9dcc6d48f3f2a2a22dbeaf6aec39e11d7546d3d28cbe26df88f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SGUM72301627.
date published: 2026-07-16T02:28:43Z

trên taxi chẳng muốn về nhà - lofi ver.
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 135.868
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.635
additional property: Energy
  type: PropertyValue
  value: 0.287
additional property: Speechiness
  type: PropertyValue
  value: 0.061
additional property: Acousticness
  type: PropertyValue
  value: 0.744
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.376
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.212
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.998
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Minor

Bình Minh
type: MusicAlbum
date published: 2024-09-03
track: Bình Minh
  type: MusicRecording
  duration: PT4M38S
  duration ms: 278000
  explicit: false
  by artist: Hoàng Duyên
  in album: Bình Minh
    type: MusicAlbum
    date published: 2024-09-03
  genre: vietnamese lo-fi
  genre: vietnam indie
  genre: v-pop
  isrc code: SGUM72400764
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T15:33:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2efcfac951e9fdbbb2e3724a1108487639c4f299537a4a987b3d79a7809bbea9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958166
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958166
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SGUM72400764
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T15:55:19Z
  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 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 0x2efcfac951e9fdbbb2e3724a1108487639c4f299537a4a987b3d79a7809bbea9. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/SGUM72400764.
    date published: 2026-07-15T15:55:19Z
  audio: Bình Minh
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 154.098
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.576
    additional property: Energy
      type: PropertyValue
      value: 0.495
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.809
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.075
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.24
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.305
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Bình Minh - Ballad Version
  type: MusicRecording
  duration: PT4M17S
  duration ms: 257837
  explicit: false
  by artist: Hoàng Duyên
  in album: Bình Minh
    type: MusicAlbum
    date published: 2024-09-03
  genre: vietnamese lo-fi
  genre: vietnam indie
  genre: v-pop
  isrc code: SGUM72400765
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T13:47:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x47ab15e30bdc6318d3095241f8ff47955dae0de20eb60bb76d67b2b0e205a178
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958897
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958897
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SGUM72400765
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T14:57:46Z
  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 0x47ab15e30bdc6318d3095241f8ff47955dae0de20eb60bb76d67b2b0e205a178. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/SGUM72400765.
    date published: 2026-07-20T14:57:46Z
  audio: Bình Minh - Ballad Version
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 148.066
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.586
    additional property: Energy
      type: PropertyValue
      value: 0.375
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.906
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.445
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.847
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

She Never Cries
type: MusicAlbum
date published: 2025-07-04

Lắng Nghe (Theme song Sephera NoVa)
type: MusicRecording
duration: PT3M31S
duration ms: 211445
explicit: false
by artist: Liên Quân Mobile
by artist: Hoàng Duyên
in album: Lắng Nghe (Theme song Sephera NoVa)
  type: MusicAlbum
  date published: 2024-10-22
genre: v-pop
genre: vietnamese-hip-hop
genre: vietnam-indie
isrc code: QZW9K2421401
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T18:23:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x057ee9219f0d54e14fbd62f2d11e41235ec64e9c7d8b59a299c2918f10b1970f
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/QZW9K2421401
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x057ee9219f0d54e14fbd62f2d11e41235ec64e9c7d8b59a299c2918f10b1970f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZW9K2421401.
  date published: 2026-07-02T03:55:08Z
audio: Lắng Nghe (Theme song Sephera NoVa)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 149.928
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.507
  additional property: Energy
    type: PropertyValue
    value: 0.463
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.229
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.176
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.539
  additional property: Key Name
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    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor