KProx
type: MusicGroup
genre: bolero
genre: lo-fi
genre: vietnamese bolero
genre: vietnamese lo-fi
genre: vinahouse
genre: v-pop
popularity: 31
followers: 20087
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5419ad3e356d191cc8b2eb4104e2c0298387127eff72190c29324749837a78e5
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/99d3d2b7-6c9e-40ed-9ee3-42e7f1aeae5a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/99d3d2b7-6c9e-40ed-9ee3-42e7f1aeae5a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/99d3d2b7-6c9e-40ed-9ee3-42e7f1aeae5a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5419ad3e356d191cc8b2eb4104e2c0298387127eff72190c29324749837a78e5. 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/99d3d2b7-6c9e-40ed-9ee3-42e7f1aeae5a.json and https://artists.proofprofile.net/proofs/artist/99d3d2b7-6c9e-40ed-9ee3-42e7f1aeae5a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: Trop Original
  type: MusicAlbum
  date published: 2021-05-29
album: Piano Original
  type: MusicAlbum
  date published: 2021-06-02
album: Đoạn Tuyệt Nàng Đi (Lofi Version)
  type: MusicAlbum
  date published: 2021-06-27
album: Hẹn Kiếp Sau (Lofi Ver)
  type: MusicAlbum
  date published: 2021-06-30
  track: Hẹn Kiếp Sau - Lofi Ver
    type: MusicRecording
    duration: PT4M48S
    duration ms: 288548
    explicit: false
    by artist: KProx
    in album: Hẹn Kiếp Sau (Lofi Ver)
      type: MusicAlbum
      date published: 2021-06-30
    genre: bolero
    genre: lo-fi
    genre: vietnamese bolero
    genre: vietnamese lo-fi
    genre: vinahouse
    genre: v-pop
    isrc code: QZK6P2181725
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T17:04:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x46cf47212e1c6af2b2935cd9315d7e42e625620868fd1356dfd616a17a893ce6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957891
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957891
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2181725
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T18:21:04Z
    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 0x46cf47212e1c6af2b2935cd9315d7e42e625620868fd1356dfd616a17a893ce6. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZK6P2181725.
      date published: 2026-07-13T18:21:04Z
    audio: Hẹn Kiếp Sau - Lofi Ver
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.009
      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: 0.613
      additional property: Energy
        type: PropertyValue
        value: 0.348
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.875
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.05
      additional property: Liveness
        type: PropertyValue
        value: 0.345
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.165
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.281
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Cô Đơn Dành Cho Ai (Lofi Ver)
  type: MusicAlbum
  date published: 2021-07-02
album: Đâu Còn Đây
  type: MusicAlbum
  date published: 2021-07-23
album: Đoạn Tuyệt Nàng Đi (Remix)
  type: MusicAlbum
  date published: 2021-07-23
album: Cô Đơn Dành Cho Ai
  type: MusicAlbum
  date published: 2021-07-23
album: Đoạt Duyên
  type: MusicAlbum
  date published: 2021-07-24
album: Lời Nói Tơ Duyên
  type: MusicAlbum
  date published: 2021-08-13
album: Làm Vợ Anh Được Chưa (Radio Edit)
  type: MusicAlbum
  date published: 2021-09-24
album: Thương Người Không Thương
  type: MusicAlbum
  date published: 2021-10-11
album: Như Áng Mây Trời (Lofi)
  type: MusicAlbum
  date published: 2021-10-12
album: Sầu Tím Thiệp Hồng (Lofi)
  type: MusicAlbum
  date published: 2021-11-08
album: Lời Tỏ Tình Ong Bướm (Lofi)
  type: MusicAlbum
  date published: 2021-11-10
  track: Lời Tỏ Tình Ong Bướm (Lofi)
    type: MusicRecording
    duration: PT3M20S
    duration ms: 200045
    explicit: false
    by artist: KProx
    in album: Lời Tỏ Tình Ong Bướm (Lofi)
      type: MusicAlbum
      date published: 2021-11-10
    genre: bolero
    genre: lo-fi
    genre: vietnamese bolero
    genre: vietnamese lo-fi
    genre: vinahouse
    genre: v-pop
    isrc code: VNA0F2103880
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T11:12:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe17465343f9f7c391914db4286eeab2647d54cc5acddd1b6623a071c73c46d2c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Lời Tỏ Tình Ong Bướm (Lofi)
album: Bằng Lòng Đi Em (Lofi)
album: Hoa Sứ Nhà Nàng (Lofi)
album: Gõ Cửa Trái Tim (Lofi)
album: Hỏi Vợ Ngoại Thành (Lofi)
album: Lại Nhớ Người Yêu (Lofi)
album: Người Tình Không Đến (Lofi)
album: Chiều Đồng Quê (Lofi) - Beat
album: Một Lần Dang Dở (Lofi)
album: Không Bằng (Lofi)
album: Phượng Buồn (Lofi)
album: Người Tình Mùa Đông (Lofi)
album: Tuyển tập Beat 1 9 6 7 - 49
album: Thì Thôi (Lofi)
album: Thì Thôi (Lofi) - Beat
album: Hạnh Phúc Đó Em Không Có (Lofi) - Beat
album: Đêm Vũ Trường (Lofi)
album: Phận Tàn (Lofi)
album: Con Bướm Xuân (Lofi)
album: Anh Cho Em Mùa Xuân (Lofi)
album: Đứt Duyên (Lofi)
album: Ngày Xuân Long Phụng Sum Vầy (Lofi)
album: Ước Nguyện Đầu Xuân (Lofi)
album: Mùa Xuân Ơi (Lofi)
album: Ngày Tết Quê Em (Lofi)
album: Chuyện Hoa Sim (Lofi)
album: Lời Nói Điêu Trên Môi Em (Lofi)
album: Lời Tỏ Tình Dễ Thương (Lofi)
album: Nụ Hồng Mong Manh (Lofi)
album: Vui Lắm Nha (Lofi)
album: Yêu Là Cưới (Lofi)
album: Chưa Bao Giờ Em Quên (Lofi)
album: Khi Nào (Lofi)
album: Là Ai Từ Bỏ Là Ai Vô Tình (Lofi)
album: Cưa Là Đổ (Lofi)
album: Chờ Ngày Cưới Em (Lofi)
album: Đám Cưới Miền Tây (Lofi)
album: Nặng Tình Hay Nhẹ Lòng (Lofi)
album: Vó Ngựa Trên Đồi Cỏ Non (Lofi)
album: Lỡ Yêu Người Đậm Sâu (Lofi)
album: Chỉ Còn Một Đêm (KProx Lofi)
album: Cô Hàng Xóm (Lofi)
album: Muốn Anh Là Của Em (Lofi)
album: Một Thuở Yêu Người (Lofi)
album: Duyên Trời Lấy 2 (Lofi)

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958870

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958870

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2103880

OTSTimestamp
type: PropertyValue
value: 2026-07-20T14:07:30Z

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 0xe17465343f9f7c391914db4286eeab2647d54cc5acddd1b6623a071c73c46d2c. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:07:30Z), 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/VNA0F2103880.
date published: 2026-07-20T14:07:30Z

Lời Tỏ Tình Ong Bướm (Lofi)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 100.01
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.692
additional property: Energy
  type: PropertyValue
  value: 0.339
additional property: Speechiness
  type: PropertyValue
  value: 0.038
additional property: Acousticness
  type: PropertyValue
  value: 0.612
additional property: Instrumentalness
  type: PropertyValue
  value: 0.495
additional property: Liveness
  type: PropertyValue
  value: 0.416
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.362
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.029
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Minor

Bằng Lòng Đi Em (Lofi)
type: MusicAlbum
date published: 2021-11-11
track: Bằng Lòng Đi Em (Lofi)
  type: MusicRecording
  duration: PT3M9S
  duration ms: 189056
  explicit: false
  by artist: KProx
  in album: Bằng Lòng Đi Em (Lofi)
    type: MusicAlbum
    date published: 2021-11-11
  genre: bolero
  genre: lo-fi
  genre: vietnamese bolero
  genre: vietnamese lo-fi
  genre: vinahouse
  genre: v-pop
  isrc code: VNA0F2103976
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T06:27:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdab9179377067143bd1a346cdca75aaa3026b842617889ccdcf0137758b887bf
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2103976
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab9179377067143bd1a346cdca75aaa3026b842617889ccdcf0137758b887bf. 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/VNA0F2103976.
    date published: 2026-07-04T10:04:33Z
  audio: Bằng Lòng Đi Em (Lofi)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 85.007
    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: 0.732
    additional property: Energy
      type: PropertyValue
      value: 0.36
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.849
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.586
    additional property: Liveness
      type: PropertyValue
      value: 0.35
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.281
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.86
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Hoa Sứ Nhà Nàng (Lofi)
type: MusicAlbum
date published: 2021-11-12

Gõ Cửa Trái Tim (Lofi)
type: MusicAlbum
date published: 2021-11-13

Hỏi Vợ Ngoại Thành (Lofi)
type: MusicAlbum
date published: 2021-11-15

Lại Nhớ Người Yêu (Lofi)
type: MusicAlbum
date published: 2021-11-15

Người Tình Không Đến (Lofi)
type: MusicAlbum
date published: 2021-11-16
track: Người Tình Không Đến (Lofi)
  type: MusicRecording
  duration: PT4M9S
  duration ms: 249338
  explicit: false
  by artist: KProx
  in album: Người Tình Không Đến (Lofi)
    type: MusicAlbum
    date published: 2021-11-16
  genre: bolero
  genre: lo-fi
  genre: vietnamese bolero
  genre: vietnamese lo-fi
  genre: vinahouse
  genre: v-pop
  isrc code: VNA0F2104111
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T04:31:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x21a87093a5960a60b3c0926c643036d70caf70e46c5a5cf0c9c06473310a57dd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958827
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958827
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2104111
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T07:32:40Z
  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 0x21a87093a5960a60b3c0926c643036d70caf70e46c5a5cf0c9c06473310a57dd. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:32:40Z), 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/VNA0F2104111.
    date published: 2026-07-20T07:32:40Z
  audio: Người Tình Không Đến (Lofi)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 84.688
    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: 0.363
    additional property: Energy
      type: PropertyValue
      value: 0.326
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.867
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.036
    additional property: Liveness
      type: PropertyValue
      value: 0.226
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.329
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.252
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Chiều Đồng Quê (Lofi) - Beat
type: MusicAlbum
date published: 2021-11-17

Một Lần Dang Dở (Lofi)
type: MusicAlbum
date published: 2021-11-29

Không Bằng (Lofi)
type: MusicAlbum
date published: 2021-11-29

Phượng Buồn (Lofi)
type: MusicAlbum
date published: 2021-11-30

Người Tình Mùa Đông (Lofi)
type: MusicAlbum
date published: 2021-12-01

Tuyển tập Beat 1 9 6 7 - 49
type: MusicAlbum
date published: 2021-12-03

Thì Thôi (Lofi)
type: MusicAlbum
date published: 2021-12-07

Thì Thôi (Lofi) - Beat
type: MusicAlbum
date published: 2021-12-07

Hạnh Phúc Đó Em Không Có (Lofi) - Beat
type: MusicAlbum
date published: 2021-12-18

Đêm Vũ Trường (Lofi)
type: MusicAlbum
date published: 2021-12-27

Phận Tàn (Lofi)
type: MusicAlbum
date published: 2022-01-04
track: Phận Tàn (Lofi)
  type: MusicRecording
  duration: PT4M3S
  duration ms: 243750
  explicit: false
  by artist: KProx
  in album: Phận Tàn (Lofi)
    type: MusicAlbum
    date published: 2022-01-04
  genre: bolero
  genre: lo-fi
  genre: vietnamese bolero
  genre: vietnamese lo-fi
  genre: vinahouse
  genre: v-pop
  isrc code: VNA0F2106796
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T05:56:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2904059eebc70993a515cb3dbfa73edbc88302ace38083354035780a1c98dfbe
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958544
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958544
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2106796
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T12:14:37Z
  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 0x2904059eebc70993a515cb3dbfa73edbc88302ace38083354035780a1c98dfbe. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/VNA0F2106796.
    date published: 2026-07-18T12:14:37Z
  audio: Phận Tàn (Lofi)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 89.965
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.695
    additional property: Energy
      type: PropertyValue
      value: 0.331
    additional property: Speechiness
      type: PropertyValue
      value: 0.088
    additional property: Acousticness
      type: PropertyValue
      value: 0.948
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.355
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.572
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.631
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Con Bướm Xuân (Lofi)
type: MusicAlbum
date published: 2022-01-05

Anh Cho Em Mùa Xuân (Lofi)
type: MusicAlbum
date published: 2022-01-07
track: Anh Cho Em Mùa Xuân (Lofi)
  type: MusicRecording
  duration: PT4M0S
  duration ms: 240008
  explicit: false
  by artist: KProx
  in album: Anh Cho Em Mùa Xuân (Lofi)
    type: MusicAlbum
    date published: 2022-01-07
  genre: bolero
  genre: lo-fi
  genre: vietnamese bolero
  genre: vietnamese lo-fi
  genre: vinahouse
  genre: v-pop
  isrc code: VNA0F2106982
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T05:35:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x43e7a513656e64a18260c445dc5274e834062d03400ff546fa4e5e5c3657275c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956790
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956790
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2106982
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T12:31:54Z
  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 0x43e7a513656e64a18260c445dc5274e834062d03400ff546fa4e5e5c3657275c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/VNA0F2106982.
    date published: 2026-07-05T12:31:54Z
  audio: Anh Cho Em Mùa Xuân (Lofi)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 74.993
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.568
    additional property: Energy
      type: PropertyValue
      value: 0.284
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.724
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.487
    additional property: Liveness
      type: PropertyValue
      value: 0.311
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.229
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.449
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Đứt Duyên (Lofi)
type: MusicAlbum
date published: 2022-01-10

Con Bướm Xuân (Lofi)
type: MusicAlbum
date published: 2022-01-11

Ngày Xuân Long Phụng Sum Vầy (Lofi)
type: MusicAlbum
date published: 2022-01-24

Ước Nguyện Đầu Xuân (Lofi)
type: MusicAlbum
date published: 2022-01-26

Mùa Xuân Ơi (Lofi)
type: MusicAlbum
date published: 2022-01-27

Ngày Tết Quê Em (Lofi)
type: MusicAlbum
date published: 2022-01-28

Chuyện Hoa Sim (Lofi)
type: MusicAlbum
date published: 2022-02-24

Lời Nói Điêu Trên Môi Em (Lofi)
type: MusicAlbum
date published: 2022-03-02

Lời Tỏ Tình Dễ Thương (Lofi)
type: MusicAlbum
date published: 2022-03-11

Nụ Hồng Mong Manh (Lofi)
type: MusicAlbum
date published: 2022-03-25

Vui Lắm Nha (Lofi)
type: MusicAlbum
date published: 2022-04-01

Yêu Là Cưới (Lofi)
type: MusicAlbum
date published: 2022-04-02

Chưa Bao Giờ Em Quên (Lofi)
type: MusicAlbum
date published: 2022-04-04

Khi Nào (Lofi)
type: MusicAlbum
date published: 2022-04-07

Là Ai Từ Bỏ Là Ai Vô Tình (Lofi)
type: MusicAlbum
date published: 2022-04-13

Cưa Là Đổ (Lofi)
type: MusicAlbum
date published: 2022-04-16
track: Cưa Là Đổ (Lofi)
  type: MusicRecording
  duration: PT3M20S
  duration ms: 200933
  explicit: false
  by artist: KProx
  in album: Cưa Là Đổ (Lofi)
    type: MusicAlbum
    date published: 2022-04-16
  genre: bolero
  genre: lo-fi
  genre: vietnamese bolero
  genre: vietnamese lo-fi
  genre: vinahouse
  genre: v-pop
  isrc code: VNA0F2111697
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T11:57:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3de32c54f01653be245d82c2d39fe6ad81f5b2ad536b8d9b5f3c67a4d0af8c66
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959009
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959009
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2111697
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T15:00:04Z
  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 0x3de32c54f01653be245d82c2d39fe6ad81f5b2ad536b8d9b5f3c67a4d0af8c66. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:00:04Z), 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/VNA0F2111697.
    date published: 2026-07-21T15:00:04Z
  audio: Cưa Là Đổ (Lofi)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 84.997
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.801
    additional property: Energy
      type: PropertyValue
      value: 0.335
    additional property: Speechiness
      type: PropertyValue
      value: 0.16
    additional property: Acousticness
      type: PropertyValue
      value: 0.424
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.338
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.537
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.529
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Chờ Ngày Cưới Em (Lofi)
type: MusicAlbum
date published: 2022-04-18

Đám Cưới Miền Tây (Lofi)
type: MusicAlbum
date published: 2022-04-23
track: Đám Cưới Miền Tây (Lofi)
  type: MusicRecording
  duration: PT3M6S
  duration ms: 186684
  explicit: false
  by artist: KProx
  in album: Đám Cưới Miền Tây (Lofi)
    type: MusicAlbum
    date published: 2022-04-23
  genre: bolero
  genre: lo-fi
  genre: vietnamese bolero
  genre: vietnamese lo-fi
  genre: vinahouse
  genre: v-pop
  isrc code: VNA0F2111881
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T08:19:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x370640da653bd64307fa7470a87f57ed8ba60bf5b9cff2e1584bdef31d72ac22
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956776
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956776
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2111881
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:59:37Z
  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 0x370640da653bd64307fa7470a87f57ed8ba60bf5b9cff2e1584bdef31d72ac22. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/VNA0F2111881.
    date published: 2026-07-05T10:59:37Z
  audio: Đám Cưới Miền Tây (Lofi)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.906
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.824
    additional property: Energy
      type: PropertyValue
      value: 0.231
    additional property: Speechiness
      type: PropertyValue
      value: 0.174
    additional property: Acousticness
      type: PropertyValue
      value: 0.823
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.348
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.281
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.242
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Nặng Tình Hay Nhẹ Lòng (Lofi)
type: MusicAlbum
date published: 2022-05-04

Vó Ngựa Trên Đồi Cỏ Non (Lofi)
type: MusicAlbum
date published: 2022-05-16
track: Vó Ngựa Trên Đồi Cỏ Non (Lofi)
  type: MusicRecording
  duration: PT4M0S
  duration ms: 240182
  explicit: false
  by artist: KProx
  in album: Vó Ngựa Trên Đồi Cỏ Non (Lofi)
    type: MusicAlbum
    date published: 2022-05-16
  genre: bolero
  genre: lo-fi
  genre: vietnamese bolero
  genre: vietnamese lo-fi
  genre: vinahouse
  genre: v-pop
  isrc code: VNA0F2113319
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T17:15:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x193ad22c6a29d8a2592fddc23430d6b9e4257e3bf14620ddc3a4d25ac8f16e8e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958180
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958180
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2113319
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T20:14:25Z
  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 0x193ad22c6a29d8a2592fddc23430d6b9e4257e3bf14620ddc3a4d25ac8f16e8e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:14:25Z), 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/VNA0F2113319.
    date published: 2026-07-15T20:14:25Z
  audio: Vó Ngựa Trên Đồi Cỏ Non (Lofi)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.963
    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: 0.684
    additional property: Energy
      type: PropertyValue
      value: 0.24
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.648
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.357
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.253
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.448
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Lỡ Yêu Người Đậm Sâu (Lofi)
type: MusicAlbum
date published: 2022-05-17

Chỉ Còn Một Đêm (KProx Lofi)
type: MusicAlbum
date published: 2022-05-27

Cô Hàng Xóm (Lofi)
type: MusicAlbum
date published: 2022-06-16

Muốn Anh Là Của Em (Lofi)
type: MusicAlbum
date published: 2022-08-23

Một Thuở Yêu Người (Lofi)
type: MusicAlbum
date published: 2022-08-24

Duyên Trời Lấy 2 (Lofi)
type: MusicAlbum
date published: 2022-09-10

Sợ Đánh Mất Em (Lofi)
type: MusicAlbum
date published: 2022-09-13

Thế Giới Trong Em (Lofi)
type: MusicAlbum
date published: 2022-09-18

Kiệu Hoa (Lofi)
type: MusicAlbum
date published: 2022-09-23

Em Có Biết (Lofi)
type: MusicAlbum
date published: 2022-09-30
track: Em Có Biết (Lofi)
  type: MusicRecording
  duration: PT3M54S
  duration ms: 234723
  explicit: false
  by artist: KProx
  in album: Em Có Biết (Lofi)
    type: MusicAlbum
    date published: 2022-09-30
  genre: bolero
  genre: lo-fi
  genre: vietnamese bolero
  genre: vietnamese lo-fi
  genre: vinahouse
  genre: v-pop
  isrc code: VNA0F2122631
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T19:43:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x65201ebe44b348554134a2b1724122e1787acbbcd8520ac75c9ccc2ea95dcb99
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958774
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958774
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2122631
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T22:46:23Z
  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 0x65201ebe44b348554134a2b1724122e1787acbbcd8520ac75c9ccc2ea95dcb99. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:46:23Z), 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/VNA0F2122631.
    date published: 2026-07-19T22:46:23Z
  audio: Em Có Biết (Lofi)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 170.003
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.619
    additional property: Energy
      type: PropertyValue
      value: 0.344
    additional property: Speechiness
      type: PropertyValue
      value: 0.236
    additional property: Acousticness
      type: PropertyValue
      value: 0.88
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.338
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.24
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.955
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Đố Em Kiếm Ai Yêu Em Như Anh (Lofi)
type: MusicAlbum
date published: 2022-11-19

Đố Em Kiếm Ai Yêu Em Như Anh (Lofi Beat)
type: MusicAlbum
date published: 2022-11-19

Sầu Tím Thiệp Hồng Ver 2 (Lofi)
type: MusicAlbum
date published: 2022-11-24

Sầu Tím Thiệp Hồng Ver 2 (Lofi Beat)
type: MusicAlbum
date published: 2022-11-24

Gõ Cửa Trái Tim Ver 2 (Lofi Beat)
type: MusicAlbum
date published: 2022-11-25

Gõ Cửa Trái Tim Ver 2 (Lofi)
type: MusicAlbum
date published: 2022-11-25

Lại Nhớ Người Yêu Ver 2 (Lofi)
type: MusicAlbum
date published: 2022-11-26

Lại Nhớ Người Yêu Ver 2 (Lofi Beat)
type: MusicAlbum
date published: 2022-11-26

Hỏi Vợ Ngoại Thành Ver 2 (Lofi)
type: MusicAlbum
date published: 2022-11-27

Hoa Sứ Nhà Nàng Ver 2 (Lofi Beat)
type: MusicAlbum
date published: 2022-11-29

Ngày Xuân Vui Cưới (Lofi)
type: MusicAlbum
date published: 2022-12-06

Ngày Xuân Vui Cưới (Lofi Beat)
type: MusicAlbum
date published: 2022-12-06

Hẹn Em Ở Một Cuộc Đời Khác (Lofi Beat)
type: MusicAlbum
date published: 2022-12-08

Mùa Xuân Đầu Tiên (Lofi) - Beat
type: MusicAlbum
date published: 2022-12-09

You Are My Crush (Lofi) - Beat
type: MusicAlbum
date published: 2023-01-13

Xuân Trước Nhà (Lofi)
type: MusicAlbum
date published: 2023-01-22

Sài Gòn Đẹp Lắm Lofi
type: MusicAlbum
date published: 2023-01-30

Căn Nhà Màu Tím Lofi
type: MusicAlbum
date published: 2023-01-30

Mong Một Ngày Em Nhớ Đến Anh Lofi
type: MusicAlbum
date published: 2023-01-30

Lửng Lơ Lofi Beat
type: MusicAlbum
date published: 2023-01-31

Anh Chỉ Muốn Lofi
type: MusicAlbum
date published: 2023-02-02

Kiếp Má Hồng Lofi
type: MusicAlbum
date published: 2023-02-03

Đừng Lo Nhé Có Anh Đây Lofi Beat
type: MusicAlbum
date published: 2023-02-04

Đừng Lo Nhé Có Anh Đây Lofi
type: MusicAlbum
date published: 2023-02-04

Xuân Này Con Không Về Lofi Beat
type: MusicAlbum
date published: 2023-02-05

Xuân Này Con Không Về Lofi
type: MusicAlbum
date published: 2023-02-05

Mùa Xuân Của Mẹ Lofi
type: MusicAlbum
date published: 2023-02-12

Anh Mới Chính Là Người Em Yêu Lofi
type: MusicAlbum
date published: 2023-03-09

Tương Tư Nàng Ca Sĩ (Lofi)
type: MusicAlbum
date published: 2023-03-11

Tuyển tập album Beat 1 9 6 7 #324
type: MusicAlbum
date published: 2023-03-11

Người Thay Thế Em (Lofi) - Beat
type: MusicAlbum
date published: 2023-03-12

Gió Lofi
type: MusicAlbum
date published: 2023-03-23

Tuyển tập album Beat 1 9 6 7 #335
type: MusicAlbum
date published: 2023-03-25

Gió (Slowed)
type: MusicAlbum
date published: 2023-03-28

Tuyển tập album Beat 1 9 6 7 344
type: MusicAlbum
date published: 2023-03-31

Gió (Piano)
type: MusicAlbum
date published: 2023-03-31

Chuyện Giàn Thiên Lý (Lofi)
type: MusicAlbum
date published: 2023-04-06

Không Giờ Rồi (Lofi)
type: MusicAlbum
date published: 2023-04-13

Xin Anh Giữ Trọn Tình Quê (Lofi)
type: MusicAlbum
date published: 2023-05-06

Bông Cỏ May Ver 2 (Lofi)
type: MusicAlbum
date published: 2023-05-14

Lỗi Tại Mưa Lofi (ft Vicky Nhung)
type: MusicAlbum
date published: 2023-05-23

Đoạn Đường Cuối (Lofi)
type: MusicAlbum
date published: 2023-06-20

Tuyển tập Beat 1 9 6 7 349
type: MusicAlbum
date published: 2023-06-20

BEAT Vào Một Ngày Mưa (Lofi)
type: MusicAlbum
date published: 2023-07-03

Nguyện Yêu (Speed Up)
type: MusicAlbum
date published: 2023-07-07

Nguyện Yêu (Lofi)
type: MusicAlbum
date published: 2023-07-07

Cá Chép Hóa Rồng Remix
type: MusicAlbum
date published: 2023-08-17

BEAT Nắng Lung Linh (Lofi)
type: MusicAlbum
date published: 2023-08-19

BEAT Căn Nhà Màu Tím Remake (Lofi)
type: MusicAlbum
date published: 2023-09-05

Căn Nhà Màu Tím Remake - Lofi (H2K Ver)
type: MusicAlbum
date published: 2023-09-05

Hoa Trinh Nữ - Lofi (H2K Ver)
type: MusicAlbum
date published: 2023-09-14

Ưng Thì Nói (Lofi)
type: MusicAlbum
date published: 2023-09-20

Giờ Không Cưới Thì Nào Cưới (Lofi)
type: MusicAlbum
date published: 2023-09-26

Giờ Không Cưới Thì Nào Cưới (Lofi Beat)
type: MusicAlbum
date published: 2023-09-26

Ưng Thì Nói (Speed Up)
type: MusicAlbum
date published: 2023-09-28

BEAT Ưng Thì Nói (Lofi)
type: MusicAlbum
date published: 2023-09-28

Lệ Lưu Ly (Lofi)
type: MusicAlbum
date published: 2023-10-01

Thanh Xuân Em Có Anh (Lofi) - Beat
type: MusicAlbum
date published: 2023-10-06

Thanh Xuân Em Có Anh (Lofi)
type: MusicAlbum
date published: 2023-10-06

Quê Hương Ba Miền (Lofi)
type: MusicAlbum
date published: 2023-10-07

Anh Có Con Công (Lofi)
type: MusicAlbum
date published: 2023-10-12

Anh Có Con Công (Lofi) - Beat
type: MusicAlbum
date published: 2023-10-12

Có Yêu Được Không (Lofi)
type: MusicAlbum
date published: 2023-10-14

Có Yêu Được Không (Lofi) - Beat
type: MusicAlbum
date published: 2023-10-14

Có Yêu Được Không (Speed Up)
type: MusicAlbum
date published: 2023-10-23

Ôm Lấy Nỗi Đau (Lofi)
type: MusicAlbum
date published: 2023-11-10

Ôm Lấy Nỗi Đau (Lofi) - Beat
type: MusicAlbum
date published: 2023-11-10

Giờ Không Cưới Thì Nào Cưới (Speed Up)
type: MusicAlbum
date published: 2023-11-11

Sầu Tím Thiệp Hồng (Lofi) - Bạn Ấy Đẹp Quá
type: MusicAlbum
date published: 2023-11-20

Sầu Tím Thiệp Hồng (Rumba)
type: MusicAlbum
date published: 2023-11-27

Tuyển tập Beat 1 9 6 7 363
type: MusicAlbum
date published: 2023-11-27

Giờ Không Cưới Thì Nào Cưới (Cha Cha Cha)
type: MusicAlbum
date published: 2023-11-27

Tuyển tập Beat 1 9 6 7 364
type: MusicAlbum
date published: 2023-12-05

Sợ Người Đi Mất (Lofi)
type: MusicAlbum
date published: 2023-12-05

Hẹn Hò Đêm Trăng (Cha Cha Cha)
type: MusicAlbum
date published: 2023-12-09

Tát Nhật Lãng Rực Rỡ (Lofi)
type: MusicAlbum
date published: 2023-12-16

UMEE (Lofi) - Beat
type: MusicAlbum
date published: 2023-12-29

UMEE (Lofi)
type: MusicAlbum
date published: 2023-12-29

Tuyển tập album Beat 1 9 6 7 #371
type: MusicAlbum
date published: 2023-12-30

Nhiệm Kỳ Tình Yêu (Lofi)
type: MusicAlbum
date published: 2023-12-30

Nhiệm Kỳ Tình Yêu (Speed Up)
type: MusicAlbum
date published: 2024-01-01

Giáng Sinh Bùn Drill (Lofi)
type: MusicAlbum
date published: 2024-01-08

Nắng Cũ (Lofi)
type: MusicAlbum
date published: 2024-01-09
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    date published: 2024-01-09
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  genre: lo-fi
  genre: vietnamese bolero
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  genre: vinahouse
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  additional property: OTSVerifyInstructions
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    date published: 2026-07-16T02:13:35Z
  audio: Nắng Cũ (Lofi)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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Tết Là Phải Đi Về Nhà (Lofi)
type: MusicAlbum
date published: 2024-01-09

Tết Là Phải Đi Về Nhà (Speed Up)
type: MusicAlbum
date published: 2024-01-15

Tia Nắng Đời Anh (Lofi)
type: MusicAlbum
date published: 2024-01-26

Tia Nắng Đời Anh (Lofi) - Beat
type: MusicAlbum
date published: 2024-01-26

Có Lẽ Bên Nhau Là Sai (Speed Up)
type: MusicAlbum
date published: 2024-02-09

Thuỷ Triều (Lofi)
type: MusicAlbum
date published: 2024-02-17

Thuỷ Triều (Speed Up)
type: MusicAlbum
date published: 2024-02-20

Thuỷ Triều Ver 2 (Lofi)
type: MusicAlbum
date published: 2024-02-24

Thuỷ Triều Ver 2 (Speed up)
type: MusicAlbum
date published: 2024-02-28

Thuỷ Triều (Piano)
type: MusicAlbum
date published: 2024-03-03

Thiên Lý Ơi (Speed Up)
type: MusicAlbum
date published: 2024-03-08

Thiên Lý Ơi (Lofi)
type: MusicAlbum
date published: 2024-03-08

Thiên Lý Ơi (Ballad)
type: MusicAlbum
date published: 2024-03-09
track: Thiên Lý Ơi (Ballad)
  type: MusicRecording
  duration: PT4M1S
  duration ms: 241465
  explicit: false
  by artist: KProx
  in album: Thiên Lý Ơi (Ballad)
    type: MusicAlbum
    date published: 2024-03-09
  genre: bolero
  genre: lo-fi
  genre: vietnamese bolero
  genre: vietnamese lo-fi
  genre: vinahouse
  genre: v-pop
  isrc code: VNA0F2322699
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956375
  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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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
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    date published: 2026-07-02T16:51:38Z
  audio: Thiên Lý Ơi (Ballad)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Tát Nhật Lãng Rực Rỡ (New Version)
type: MusicAlbum
date published: 2024-04-04

Đừng Hỏi Em Ổn Không (Lofi)
type: MusicAlbum
date published: 2024-04-25

Đừng Hỏi Em Ổn Không (New Version)
type: MusicAlbum
date published: 2024-04-25

Nhân Sinh Quán (Lofi)
type: MusicAlbum
date published: 2024-05-18

Má Em Dặn Anh (Lofi)
type: MusicAlbum
date published: 2024-05-19

Nhân Sinh Quán (New Ver)
type: MusicAlbum
date published: 2024-05-20

Mưa Đá (Lofi)
type: MusicAlbum
date published: 2024-05-23

Mưa Đá (Speedup)
type: MusicAlbum
date published: 2024-05-23

Đừng Khóc Một Mình (Lofi)
type: MusicAlbum
date published: 2024-05-31

Đừng Khóc Một Mình (Speedup)
type: MusicAlbum
date published: 2024-05-31

Lối Tàn Hoa (Lofi)
type: MusicAlbum
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Thân Sinh Phụ Mẫu (Lofi)
type: MusicAlbum
date published: 2024-06-21

Thân Sinh Phụ Mẫu (Lofi) - Beat
type: MusicAlbum
date published: 2024-06-21

Thân Sinh Phụ Mẫu (New Ver)
type: MusicAlbum
date published: 2024-06-28

Đơn Côi (Lofi)
type: MusicAlbum
date published: 2024-07-06

Da Key (Lofi)
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date published: 2024-07-06
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    date published: 2026-07-13T16:48:10Z
  audio: Da Key (Lofi)
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    additional property: Danceability
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    additional property: Energy
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Đơn Côi (New Ver)
type: MusicAlbum
date published: 2024-07-07

BEAT Mắt Iem (Lofi)
type: MusicAlbum
date published: 2024-07-20

BEAT Đừng Vì Anh Mà Khóc (Lofi)
type: MusicAlbum
date published: 2024-08-03

BEAT Hướng Dương Và Đôi Mắt Em (Lofi)
type: MusicAlbum
date published: 2024-08-12

Anh Vội Sang Trang (Lofi) - Beat
type: MusicAlbum
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BEAT Chưa Từng Biết Người (Lofi)
type: MusicAlbum
date published: 2024-08-15

Đôi Ta Sẽ Kết Thúc Thật À (Lofi) - Beat
type: MusicAlbum
date published: 2024-08-31

BEAT Đầu Anh Toàn Là Em (Lofi)
type: MusicAlbum
date published: 2024-08-31

Tình Nhỏ Mau Quên (Rap Version)
type: MusicAlbum
date published: 2024-08-31

Áng Mây Vô Tình (Lofi) - Beat
type: MusicAlbum
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BEAT Để Anh Là (Lofi)
type: MusicAlbum
date published: 2024-09-13

Trói Em Lại (Drill)
type: MusicAlbum
date published: 2024-09-13

BEAT Trói Em Lại (Drill)
type: MusicAlbum
date published: 2024-09-13

BEAT Là Duyên Chẳng Phận (Lofi)
type: MusicAlbum
date published: 2024-09-13

Tình Đầu Quá Chén (Speed Up)
type: MusicAlbum
date published: 2024-09-19

BEAT Làm Sao Để Quên Một Người (Lofi)
type: MusicAlbum
date published: 2024-09-24

BEAT Tình Cờ Yêu Em (Lofi)
type: MusicAlbum
date published: 2024-09-25

Đừng Hỏi Em Ổn Không (Remix) - Beat
type: MusicAlbum
date published: 2024-09-27

Đừng Hỏi Em Ổn Không (Remix)
type: MusicAlbum
date published: 2024-09-28

Tình Đầu Quá Chén (Slowed)
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date published: 2024-09-29

Đừng Hỏi Em Ổn Không (New Ver 2)
type: MusicAlbum
date published: 2024-10-01

Đừng Hỏi Em Ổn Không Ver 2 (Lofi)
type: MusicAlbum
date published: 2024-10-01

Đừng Hỏi Em Ổn Không Ver 2 (Lofi) - Beat
type: MusicAlbum
date published: 2024-10-01

Hỏi Vợ Ngoại Thành (New Ver)
type: MusicAlbum
date published: 2024-10-06

BEAT Em Còn Ở Đó Không (Lofi)
type: MusicAlbum
date published: 2024-10-08

Tình Đầu Quá Chén (Lofi)
type: MusicAlbum
date published: 2024-10-12

BEAT Tình Đầu Quá Chén (Lofi)
type: MusicAlbum
date published: 2024-10-12

Hỏi Vợ Ngoại Thành (New Ver 2)
type: MusicAlbum
date published: 2024-10-15

Lỡ Có Yêu Nhau (Lofi)
type: MusicAlbum
date published: 2024-10-16

Lỡ Có Yêu Nhau (Lofi)
type: MusicAlbum
date published: 2024-10-16

Hỏi Vợ Ngoại Thành
type: MusicAlbum
date published: 2024-10-20

Hoàng Hôn (New Ver)
type: MusicAlbum
date published: 2024-10-21

Hoàng Hôn (Lofi)
type: MusicAlbum
date published: 2024-10-21

Hoàng Hôn (Lofi) - Beat
type: MusicAlbum
date published: 2024-10-21

Anh Đau Từ Lúc Em Đi (Lofi) - Beat
type: MusicAlbum
date published: 2024-10-26

Anh Đau Từ Lúc Em Đi (Lofi)
type: MusicAlbum
date published: 2024-10-26

Thân Sinh Phụ Mẫu Ver 2 (Lofi)
type: MusicAlbum
date published: 2024-10-28

Thân Sinh Phụ Mẫu (New Ver 2)
type: MusicAlbum
date published: 2024-10-28

Thân Sinh Phụ Mẫu Ver 2 (Lofi) - Beat
type: MusicAlbum
date published: 2024-10-28

BEAT Tóc Ngắn Ngang Vai (Lofi)
type: MusicAlbum
date published: 2024-10-29

BEAT Sau Bao Năm (Lofi)
type: MusicAlbum
date published: 2024-11-03

Hương Hoa Phai Tàn (Lofi Beat)
type: MusicAlbum
date published: 2024-11-04

BEAT Khi Ta Yêu Nhau (Lofi)
type: MusicAlbum
date published: 2024-11-06

Hão Huyền (Lofi)
type: MusicAlbum
date published: 2024-11-30

Người Về Nơi Đó (Lofi) - Beat
type: MusicAlbum
date published: 2024-12-02

Hão Huyền (Lofi)
type: MusicAlbum
date published: 2024-12-04

BEAT Tâm Trí Có Riêng Em (Lofi)
type: MusicAlbum
date published: 2024-12-07

Anh Đau Từ Lúc Em Đi Ver Rap (Lofi)
type: MusicAlbum
date published: 2024-12-08

BEAT Tuần Lộc Dáng Xinh (Lofi)
type: MusicAlbum
date published: 2024-12-10

BEAT Lòng Vòng (Lofi)
type: MusicAlbum
date published: 2024-12-29

BEAT Dừng Lại Đây Thôi (Lofi)
type: MusicAlbum
date published: 2025-01-13

Ánh Mắt Biết Cười (Lofi)
type: MusicAlbum
date published: 2025-02-05

BEAT Ánh Mắt Biết Cười (Lofi)
type: MusicAlbum
date published: 2025-02-05

Ánh Mắt Biết Cười (Speed Up)
type: MusicAlbum
date published: 2025-02-06

Ánh Mắt Biết Cười x Thủy Triều (Speed Up)
type: MusicAlbum
date published: 2025-02-09

Ánh Mắt Biết Cười x Thủy Triều (Lofi)
type: MusicAlbum
date published: 2025-02-09

Tuyển Tập Beat 1 9 6 7 - 441
type: MusicAlbum
date published: 2025-02-24

Tuyển Tập Beat 1 9 6 7 - 451
type: MusicAlbum
date published: 2025-02-24

BEAT Đầu Tư Cho Trái Tim (Lofi)
type: MusicAlbum
date published: 2025-02-27

Đầu Tư Cho Trái Tim (Lofi)
type: MusicAlbum
date published: 2025-02-27

Đầu Tư Cho Trái Tim (Speed Up)
type: MusicAlbum
date published: 2025-03-01

BEAT Trái Tim Bằng Đồng (Remix)
type: MusicAlbum
date published: 2025-05-01

Tuyển Tập Beat 1 9 6 7 - 506
type: MusicAlbum
date published: 2025-05-27

BEAT LAYLALAY (Remix)
type: MusicAlbum
date published: 2025-06-13

Anh Vui Ver 2 (Remix)
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date published: 2025-07-16
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    date published: 2025-07-16
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  genre: vinahouse
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  additional property: OTSVerifyInstructions
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    date published: 2026-07-05T10:59:37Z
  audio: Anh Vui Ver 2 (Remix)
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    additional property: Musical Key
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    additional property: Danceability
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Anh Vui (Drill)
type: MusicAlbum
date published: 2025-09-11
track: Anh Vui (Drill)
  type: MusicRecording
  duration: PT1M53S
  duration ms: 113142
  explicit: false
  by artist: KProx
  in album: Anh Vui (Drill)
    type: MusicAlbum
    date published: 2025-09-11
  genre: bolero
  genre: lo-fi
  genre: vietnamese bolero
  genre: vietnamese lo-fi
  genre: vinahouse
  genre: v-pop
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    value: 2026-07-05T10:01:46Z
  additional property: 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
  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f35c533bca8644b327d9634695dc85eb8a1102f3a6071df4f7867de0a57e52. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/VNA0F2508442.
    date published: 2026-07-05T10:01:46Z
  audio: Anh Vui (Drill)
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    additional property: Musical Key
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      value: 11
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      value: 1
    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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