Hoàng Lan
type: MusicGroup
genre: bolero
genre: vietnamese bolero
genre: vinahouse
popularity: 29
followers: 8275
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee456c859eb564f9186cb966bddd44451b722a037bffa0e54b978380ca7632ac
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/28cbe21a-d69c-40fb-ae90-543507cb13a5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/28cbe21a-d69c-40fb-ae90-543507cb13a5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/28cbe21a-d69c-40fb-ae90-543507cb13a5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xee456c859eb564f9186cb966bddd44451b722a037bffa0e54b978380ca7632ac","name":"Hoàng Lan","registered_at":"2026-06-12T18:00:49Z","symbol":"NIM0329786","token_address":"0x6e590b6f5919488c292e8c76d2441181317fc2c8","type":"artist","uuid":"28cbe21a-d69c-40fb-ae90-543507cb13a5"}
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 0xee456c859eb564f9186cb966bddd44451b722a037bffa0e54b978380ca7632ac. 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/28cbe21a-d69c-40fb-ae90-543507cb13a5.json and https://artists.proofprofile.net/proofs/artist/28cbe21a-d69c-40fb-ae90-543507cb13a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xee456c859eb564f9186cb966bddd44451b722a037bffa0e54b978380ca7632ac","name":"Hoàng Lan","registered_at":"2026-06-12T18:00:49Z","symbol":"NIM0329786","token_address":"0x6e590b6f5919488c292e8c76d2441181317fc2c8","type":"artist","uuid":"28cbe21a-d69c-40fb-ae90-543507cb13a5"}
album: LK Tình Là Sợi Tơ
  type: MusicAlbum
  date published: 1996-01-01
album: Qua Cơn Mê
  type: MusicAlbum
  date published: 1996-01-01
  track: Qua Cơn Mê
    type: MusicRecording
    duration: PT4M14S
    duration ms: 254093
    explicit: false
    by artist: Hoàng Lan
    in album: Qua Cơn Mê
      type: MusicAlbum
      date published: 1996-01-01
    genre: bolero
    genre: vietnamese bolero
    genre: vinahouse
    isrc code: QM4TW2077319
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T09:41:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x77f5542ba5b6590071277931742abdeadd8593a56ab59255e1de6a2d80a93362
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2077319
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x77f5542ba5b6590071277931742abdeadd8593a56ab59255e1de6a2d80a93362. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2077319.
      date published: 2026-07-03T19:59:51Z
    audio: Qua Cơn Mê
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 172.178
      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: 0.456
      additional property: Energy
        type: PropertyValue
        value: 0.464
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.197
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.228
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.2
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.187
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Hoa Mười Giờ
    type: MusicRecording
    duration: PT5M44S
    duration ms: 344240
    explicit: false
    by artist: Hoàng Lan
    in album: Qua Cơn Mê
      type: MusicAlbum
      date published: 1996-01-01
    genre: bolero
    genre: vietnamese bolero
    genre: vinahouse
    isrc code: QM4TW2077324
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T03:00:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x648517b03c1208cfcf823311207a17436d81adb98dd0da0029b251a45a10b3c9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2077324
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0x648517b03c1208cfcf823311207a17436d81adb98dd0da0029b251a45a10b3c9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM4TW2077324.
      date published: 2026-07-06T06:56:49Z
    audio: Hoa Mười Giờ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 171.096
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.471
      additional property: Energy
        type: PropertyValue
        value: 0.393
      additional property: Speechiness
        type: PropertyValue
        value: 0.056
      additional property: Acousticness
        type: PropertyValue
        value: 0.693
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Từ Giã Thơ Ngây
album: Loài Hoa Không Tên
album: Yêu Lầm
album: Khi Đã Yêu
album: Tình Yêu Màu Tím
album: Hồn Bướm Mơ Tiên
album: Tuyết Lạnh
album: Người Đẹp Bình Dương
album: Chuyến Đò Không Em
album: Tình Yêu Gõ Cửa
album: Tự Hỏi Làm Gì Sai
album: Tổn Thương
album: Đúng Sai Cũng Chẳng Quay Lại
album: VŨ TRỤ TRONG ANH - DN TEAM REMIX
album: Duy Nhất Trong Anh - DN Team Remix | Em sẽ là duy nhất duy nhất ở trong anh
album: Người Thay Thế Em
album: Tán Em Được Không (Cover)
album: Hàn Tín (Cover) [Remix]
album: Hàn Tín (Cazi Remix) [Cover]
album: Hàn Tín (New Version) [Cover]
album: Hàn Tín (Yang Remix)
album: Hàn Tín (Cover Remix)
album: Em Chịu Hông
album: Em Chịu Hông (VisconC Remix)
album: Em Chịu Hông (Thanh Huyy Remix)
album: Em Chịu Hông (Fmajor Remix)
album: Em Chịu Hông (Đạt R Remix)
album: Em Chịu Hông (OLIVER x H.A Remix)
album: Em Chịu Hông (Rap)
album: Em Chịu Hông (MUS Remix)
album: Em Chịu Hông (Lofi Chill Version)
album: Em Chịu Không (Lofi Ver.)
album: Em Chịu Hông (WM Remix)
album: Em Chịu Hông (20X Remix)
album: Duy Nhất Trong Anh (Speed up)
album: Duy Nhất Trong Anh
album: Xém Ế Rồi
album: Em Dám Hông (Remix)
album: Em Dám Hông (Lofi)
album: Xém Ế Rồi - Beat
album: Em Dám Hông (Remix) - Beat
album: Em Dám Hông Speed up
album: Hữu Duyên Vô Phận
album: Lấy Trai Miền Tây
album: Người Thay Thế Em (Lofi Ver)
album: Người Thay Thế Em - DN Team Remix
album: Hết Yêu Thi Nên Buông
album: Người Thay Thế Em (Remix)
album: Người Thay Thế Em (Lofi)
album: Người thay thế em (Qinn remix)
album: Mấy Đời Ai Thương Thân Cô Liêu Bàn Tay Lam Lũ Sớm Chiều Remix - Người Thay Thế Em (MUS Remix)
album: Người Thay Thế Em (HHD Remix)
album: Thương Em Lâu Rồi
album: Thương Em Lâu Rồi (WM Remix)
album: Thương Em Lâu Rồi (Remix)
album: Người Thay Thế Em (Nhi Nelly Remix) - (Vinahouse)
album: Em Chịu Hông (Remix Version)
album: Anh Thôi Nhân Nhượng Cover
album: Người Thay Thế Em (Rumba)
album: Hứa Đợi Nhưng Chẳng Tới (Cover by Hoàng Lan)

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.118

Valence (Positivity)
type: PropertyValue
value: 0.31

Loudness (dB)
type: PropertyValue
value: -11.704

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major

Từ Giã Thơ Ngây
type: MusicAlbum
date published: 1997-01-01

Loài Hoa Không Tên
type: MusicAlbum
date published: 1997-01-01
track: Đời Chưa Trang Điểm
  type: MusicRecording
  duration: PT4M21S
  duration ms: 261239
  explicit: false
  by artist: Hoàng Lan
  in album: Loài Hoa Không Tên
    type: MusicAlbum
    date published: 1997-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: vinahouse
  isrc code: QM4TW2077136
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-26T01:57:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x10569789d993a74157c80698d54ccebd8dea4d7deb451807e78de1bde73a1b3e
  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/QM4TW2077136
  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 0x10569789d993a74157c80698d54ccebd8dea4d7deb451807e78de1bde73a1b3e. 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/QM4TW2077136.
    date published: 2026-07-02T03:55:08Z
  audio: Đời Chưa Trang Điểm
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 128.908
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.755
    additional property: Energy
      type: PropertyValue
      value: 0.668
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.009
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.048
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.834
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.9
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Tiếng Hát Em Còn Đây
  type: MusicRecording
  duration: PT5M11S
  duration ms: 311360
  explicit: false
  by artist: Hoàng Lan
  in album: Loài Hoa Không Tên
    type: MusicAlbum
    date published: 1997-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: vinahouse
  isrc code: QM4TW2077137
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T14:18:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb5b2909028d1ee452932ff8fbd4b847f5e378e1721e51fb980c9977e6a0dc947
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960418
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960418
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2077137
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T15:20:15Z
  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 0xb5b2909028d1ee452932ff8fbd4b847f5e378e1721e51fb980c9977e6a0dc947. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM4TW2077137.
    date published: 2026-07-31T15:20:15Z
  audio: Tiếng Hát Em Còn Đây
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 167.08
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.505
    additional property: Energy
      type: PropertyValue
      value: 0.532
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.072
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.307
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.346
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.335
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Loài Hoa Không Tên
  type: MusicRecording
  duration: PT5M15S
  duration ms: 315520
  explicit: false
  by artist: Hoàng Lan
  in album: Loài Hoa Không Tên
    type: MusicAlbum
    date published: 1997-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: vinahouse
  isrc code: QM4TW2077140
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T20:41:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb08e2843a17757fa6a6d7b0af35e440822f5ccc2461777442e767bb87cde44f3
  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: Loài Hoa Không Tên

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957124

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957124

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2077140

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:53:27Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08e2843a17757fa6a6d7b0af35e440822f5ccc2461777442e767bb87cde44f3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM4TW2077140.
date published: 2026-07-08T03:53:27Z

Loài Hoa Không Tên
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 158.861
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additional property: Danceability
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additional property: Energy
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additional property: Acousticness
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Yêu Lầm
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Khi Đã Yêu
type: MusicAlbum
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Tình Yêu Màu Tím
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Hồn Bướm Mơ Tiên
type: MusicAlbum
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Tuyết Lạnh
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Người Đẹp Bình Dương
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Chuyến Đò Không Em
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Tình Yêu Gõ Cửa
type: MusicAlbum
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Tự Hỏi Làm Gì Sai
type: MusicAlbum
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Tổn Thương
type: MusicAlbum
date published: 2021-06-16

Đúng Sai Cũng Chẳng Quay Lại
type: MusicAlbum
date published: 2021-08-20

VŨ TRỤ TRONG ANH - DN TEAM REMIX
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Duy Nhất Trong Anh - DN Team Remix | Em sẽ là duy nhất duy nhất ở trong anh
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Người Thay Thế Em
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Tán Em Được Không (Cover)
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Hàn Tín (Cover) [Remix]
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Hàn Tín (Cazi Remix) [Cover]
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Hàn Tín (New Version) [Cover]
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Hàn Tín (Yang Remix)
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Hàn Tín (Cover Remix)
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Em Chịu Hông
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Em Chịu Hông (VisconC Remix)
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Em Chịu Hông (Thanh Huyy Remix)
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Em Chịu Hông (Fmajor Remix)
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Em Chịu Hông (Đạt R Remix)
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Em Chịu Hông (OLIVER x H.A Remix)
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Em Chịu Hông (Rap)
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Em Chịu Hông (MUS Remix)
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Em Chịu Hông (Lofi Chill Version)
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Em Chịu Không (Lofi Ver.)
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Em Chịu Hông (WM Remix)
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  subject of: OpenTimestamps Proof of Existence
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Em Chịu Không (Lofi Ver.)
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Em Chịu Hông (20X Remix)
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Em Chịu Hông (20X Remix)
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Em Chịu Hông (20X Remix)
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Em Chịu Hông (20X Remix)
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Duy Nhất Trong Anh (Speed up)
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Duy Nhất Trong Anh
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Xém Ế Rồi
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Em Dám Hông (Remix)
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Em Dám Hông (Lofi)
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Xém Ế Rồi - Beat
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Em Dám Hông (Remix) - Beat
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Em Dám Hông Speed up
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Hữu Duyên Vô Phận
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Lấy Trai Miền Tây
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Người Thay Thế Em (Lofi Ver)
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Người Thay Thế Em (Lofi Ver)
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Hết Yêu Thi Nên Buông
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Người Thay Thế Em (Lofi)
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Người thay thế em (Qinn remix)
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Người Thay Thế Em (HHD Remix)
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Thương Em Lâu Rồi
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Thương Em Lâu Rồi (WM Remix)
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Thương Em Lâu Rồi (Remix)
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Người Thay Thế Em (Nhi Nelly Remix) - (Vinahouse)
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Em Chịu Hông (Remix Version)
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Thương Em Lâu Rồi (Remix)
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Anh Thôi Nhân Nhượng Cover
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Người Thay Thế Em (Rumba)
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Hứa Đợi Nhưng Chẳng Tới (Cover by Hoàng Lan)
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Nhân Sinh Quán (Cover by Hoàng Lan)
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Người Thay Thế Em (QV Remix) [Version 3]
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Người Thay Thế Em (HM Remix) [Version 2]
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Người Thay Thế Em (HM Remix)
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Người Thay Thế Em (QV Remix)
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Lấy Trai Miền Tây (HM Remix)
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Lấy Trai Miền Tây
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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 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 0x2bdcaced2bccfb5916455d570bddb45de3b65cc7576ed3109a99a2f280ab01a5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/VNA0F2304342.
  date published: 2026-06-13T13:32:09Z
audio: Người Thay Thế Em (DORI Remix)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.196
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.81
  additional property: Energy
    type: PropertyValue
    value: 0.889
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.005
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.046
  additional property: Liveness
    type: PropertyValue
    value: 0.72
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.917
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.584
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Kiếp Cầm Ca
type: MusicRecording
duration: PT4M30S
duration ms: 270480
explicit: false
by artist: Hoàng Lan
in album: Ru Giấc Tàn Phai
  type: MusicAlbum
  date published: 2024-06-13
isrc code: QM48F2465112
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:06:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa33dbd0c81aa5b23a014ecdf8937b74840b291b5d2adc24cfe0a07e22385a450
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM48F2465112
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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 0xa33dbd0c81aa5b23a014ecdf8937b74840b291b5d2adc24cfe0a07e22385a450. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM48F2465112.
  date published: 2026-07-08T03:20:19Z
audio: Kiếp Cầm Ca
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 161.334
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.363
  additional property: Energy
    type: PropertyValue
    value: 0.471
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.695
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.272
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.184
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.205
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

LK Móng Chuồn Chuồn
type: MusicRecording
duration: PT9M27S
duration ms: 567640
explicit: false
by artist: The Son
by artist: Hoàng Lan
by artist: Mỹ Huyền
in album: Về Miền Tây
  type: MusicAlbum
  date published: 1998-01-01
genre: bolero
genre: v-pop
genre: vietnamese-bolero
isrc code: QM4TW2085350
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T13:31:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x791dc33a74b01e2572ad6252b82d07dc36194d9bdb2c7598f3e4eed8eb820e35
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960410
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960410
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2085350
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:50:38Z
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 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 0x791dc33a74b01e2572ad6252b82d07dc36194d9bdb2c7598f3e4eed8eb820e35. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QM4TW2085350.
  date published: 2026-07-31T13:50:38Z
audio: LK Móng Chuồn Chuồn
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.595
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.773
  additional property: Energy
    type: PropertyValue
    value: 0.563
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.591
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.051
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.93
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.562
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

LK Chuyến Xe Miền Tây - Rumba
type: MusicRecording
duration: PT13M59S
duration ms: 839640
explicit: false
by artist: The Son
by artist: Hoàng Lan
by artist: Mỹ Huyền
in album: Ngày Xưa Anh Nói
  type: MusicAlbum
  date published: 1997-01-01
genre: bolero
genre: v-pop
genre: vietnamese-bolero
isrc code: QM4TW2081616
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T22:08:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb0b766aef3873af60595daa664922653529336710a6cf66173d364e8f2e37acc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2081616
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
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 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 0xb0b766aef3873af60595daa664922653529336710a6cf66173d364e8f2e37acc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM4TW2081616.
  date published: 2026-07-08T03:39:04Z
audio: LK Chuyến Xe Miền Tây - Rumba
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.4
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.522
  additional property: Energy
    type: PropertyValue
    value: 0.42
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.583
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.165
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.336
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.023
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor