Đức Tuấn
type: MusicGroup
genre: bolero
genre: vietnamese bolero
genre: v-pop
popularity: 22
followers: 20734
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x29a01081f0cd23efdf5e1831417f1b6d1c9c75b8196cb57f62c6e7c23f167cf8
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/bf27f255-f97e-402c-b1d3-8d235e28eb52.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf27f255-f97e-402c-b1d3-8d235e28eb52.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bf27f255-f97e-402c-b1d3-8d235e28eb52
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x29a01081f0cd23efdf5e1831417f1b6d1c9c75b8196cb57f62c6e7c23f167cf8","name":"Đức Tuấn","registered_at":"2026-06-12T08:47:16Z","symbol":"NIM0246640","token_address":"0xa79efb628161bd163a492484e70fa48d08a40934","type":"artist","uuid":"bf27f255-f97e-402c-b1d3-8d235e28eb52"}
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 0x29a01081f0cd23efdf5e1831417f1b6d1c9c75b8196cb57f62c6e7c23f167cf8. 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/bf27f255-f97e-402c-b1d3-8d235e28eb52.json and https://artists.proofprofile.net/proofs/artist/bf27f255-f97e-402c-b1d3-8d235e28eb52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
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album: Anh Yêu Em
  type: MusicAlbum
  date published: 2004-06-02
album: Đôi mắt người Sơn Tây
  type: MusicAlbum
  date published: 2005-01-11
album: Đôi Mắt Người Sơn Tây
  type: MusicAlbum
  date published: 2005-11-20
album: Yêu Trong Ánh Sáng (Special Edition)
  type: MusicAlbum
  date published: 2006-03-03
album: Đức Tuấn Hát Tình Ca Phạm Duy
  type: MusicAlbum
  date published: 2007-04-14
  track: Ngày Xưa Hoàng Thị
    type: MusicRecording
    duration: PT6M11S
    duration ms: 371173
    explicit: false
    by artist: Đức Tuấn
    in album: Đức Tuấn Hát Tình Ca Phạm Duy
      type: MusicAlbum
      date published: 2007-04-14
    genre: bolero
    genre: vietnamese bolero
    genre: v-pop
    isrc code: USHM21157157
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T21:18:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd13968a4953f2a0ce9f14359815a50c129f0941cc987db6848c2f5c0614cf386
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958331
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958331
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21157157
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T21:55:37Z
    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 0xd13968a4953f2a0ce9f14359815a50c129f0941cc987db6848c2f5c0614cf386. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/USHM21157157.
      date published: 2026-07-16T21:55:37Z
    audio: Ngày Xưa Hoàng Thị
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.246
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.327
      additional property: Energy
        type: PropertyValue
        value: 0.269
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.944
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.184
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.203
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.813
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Đưa Em Tìm Động Hoa Vàng
    type: MusicRecording
    duration: PT7M0S
    duration ms: 420520
    explicit: false
    by artist: Đức Tuấn
    in album: Đức Tuấn Hát Tình Ca Phạm Duy
      type: MusicAlbum
      date published: 2007-04-14
    genre: bolero
    genre: vietnamese bolero
    genre: v-pop
    isrc code: USHM21157159
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T04:44:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd8a61ea697808c514f5ca84a691035b6b884bfcca874dc138786fbc4d4fc74a8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21157159
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    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 0xd8a61ea697808c514f5ca84a691035b6b884bfcca874dc138786fbc4d4fc74a8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USHM21157159.
      date published: 2026-07-19T07:14:39Z
    audio: Đưa Em Tìm Động Hoa Vàng
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.982
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.337
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Tình Ca
album: Đức Tuấn hát tình ca Phạm Duy
album: Tiếng Hát Trương Chi (Tuyệt Phẩm Văn Cao)
album: Kiếp Nào Có Yêu Nhau (Đức Tuấn Và Tình Khúc Phạm Duy)
album: Music Of The Night
album: Trẻ Mãi
album: Bây Giờ... Biển Mùa Đông (Đức Tuấn hát nhạc Dương Thụ)
album: Ky Niem 1
album: Requiem
album: Những Bài Ca Không Quên
album: Tình Khúc Phạm Duy - Trịnh Công Sơn
album: Tình Khúc Phạm Duy - Kiếp Nào Có Yêu Nhau
album: By Request
album: Muốn Nghe Tiếng Sóng
album: Góc Trời Riêng
album: Tình Khúc Phạm Duy
album: 36 Tuấn Hát Quỳnh
album: Những Tình Khúc Phạm Duy - Trịnh Công Sơn
album: Đức Tuấn- Đôi Mắt Người Sơn Tây
album: Đức Tuấn- Hát Tình Ca Phạm Duy
album: Những tình khúc Phạm Duy - Trịnh Công Sơn
album: Duc Tuan Phu Quang in Symphony
album: Đức Tuấn Phú Quang in Symphony
album: Ly Rượu Mừng
album: Dã Tràng Ca (Kỷ Niệm 80 Năm Ngày Sinh Nhạc Sĩ Trịnh Công Sơn)
album: Một Ngày Ta Được Yêu
album: Đóa Hoa Vô Thường
album: Ta Thấy Gì Đêm Nay
album: Mùa Hạ Cuối Cùng
album: Tình Khúc Chiều Mưa
album: Trọn Một Kiếp Yêu
album: Kiếp Nào Có Yêu Nhau
album: Yêu Trong Ánh Sáng
album: Tiếng Hát Trương Chi
album: Sài Gòn Không Em
album: Bài Tình Ca Đêm
album: 50 (Những Bài Ca Không Quên 2)
album: Lời Dạy Cuối Cùng Của Cha

Energy
type: PropertyValue
value: 0.246

Speechiness
type: PropertyValue
value: 0.031

Acousticness
type: PropertyValue
value: 0.854

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.128

Valence (Positivity)
type: PropertyValue
value: 0.133

Loudness (dB)
type: PropertyValue
value: -11.719

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Major

Tình Ca
type: MusicRecording
duration: PT6M58S
duration ms: 418213
explicit: false
by artist: Đức Tuấn
in album: Đức Tuấn Hát Tình Ca Phạm Duy
  type: MusicAlbum
  date published: 2007-04-14
genre: bolero
genre: vietnamese bolero
genre: v-pop
isrc code: USHM21157163
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T00:11:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x48369e4dad09b34497cef9e6d8cf9bd36ce76b525bc25f459b70236d020c8816
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956422
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956422
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21157163
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T01:01:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48369e4dad09b34497cef9e6d8cf9bd36ce76b525bc25f459b70236d020c8816. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USHM21157163.
  date published: 2026-07-03T01:01:38Z
audio: Tình Ca
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 78.792
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.196
  additional property: Energy
    type: PropertyValue
    value: 0.322
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.874
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.076
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.142
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.978
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
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Đức Tuấn hát tình ca Phạm Duy
type: MusicAlbum
date published: 2007-04-24

Tiếng Hát Trương Chi (Tuyệt Phẩm Văn Cao)
type: MusicAlbum
date published: 2008-07-04

Kiếp Nào Có Yêu Nhau (Đức Tuấn Và Tình Khúc Phạm Duy)
type: MusicAlbum
date published: 2008-09-24

Music Of The Night
type: MusicAlbum
date published: 2009-07-29

Trẻ Mãi
type: MusicAlbum
date published: 2010-08-24

Bây Giờ... Biển Mùa Đông (Đức Tuấn hát nhạc Dương Thụ)
type: MusicAlbum
date published: 2010-12-14

Ky Niem 1
type: MusicAlbum
date published: 2012-07-20

Requiem
type: MusicAlbum
date published: 2014-10-15

Những Bài Ca Không Quên
type: MusicAlbum
date published: 2015-04-22
track: Câu Hò Bên Bờ Hiền Lương
  type: MusicRecording
  duration: PT4M46S
  duration ms: 286293
  explicit: false
  by artist: Đức Tuấn
  in album: Những Bài Ca Không Quên
    type: MusicAlbum
    date published: 2015-04-22
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: DGA0M2441471
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T11:19:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x245c70dde22df2a3845ac8775b5248bf29a2a444584954076befa8cd3164d17b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959002
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959002
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0M2441471
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T11:47:29Z
  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 0x245c70dde22df2a3845ac8775b5248bf29a2a444584954076befa8cd3164d17b. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/DGA0M2441471.
    date published: 2026-07-21T11:47:29Z
  audio: Câu Hò Bên Bờ Hiền Lương
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.685
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.404
    additional property: Energy
      type: PropertyValue
      value: 0.427
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.744
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.064
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.167
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.215
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Tự Nguyện
  type: MusicRecording
  duration: PT4M11S
  duration ms: 251706
  explicit: false
  by artist: Đức Tuấn
  in album: Những Bài Ca Không Quên
    type: MusicAlbum
    date published: 2015-04-22
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: DGA0M2441476
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T05:36:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x48f7728c1e7bdf1d6a5e10a3bc8b297fec9f70452ef7eafc6ab0722db1cd1613
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958975
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958975
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0M2441476
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T08:39:19Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f7728c1e7bdf1d6a5e10a3bc8b297fec9f70452ef7eafc6ab0722db1cd1613. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:39:19Z), 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/DGA0M2441476.
    date published: 2026-07-21T08:39:19Z
  audio: Tự Nguyện
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.886
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.419
    additional property: Energy
      type: PropertyValue
      value: 0.482
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.789
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.069
    additional property: Valence (Positivity)
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      value: 0.13
    additional property: Loudness (dB)
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    additional property: Key Name
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Tình Khúc Phạm Duy - Trịnh Công Sơn
type: MusicAlbum
date published: 2015-10-01

Tình Khúc Phạm Duy - Kiếp Nào Có Yêu Nhau
type: MusicAlbum
date published: 2015-10-01

By Request
type: MusicAlbum
date published: 2015-10-01

Những Bài Ca Không Quên
type: MusicAlbum
date published: 2016-06-06

Muốn Nghe Tiếng Sóng
type: MusicAlbum
date published: 2016-08-01

Góc Trời Riêng
type: MusicAlbum
date published: 2016-12-20

Tình Khúc Phạm Duy
type: MusicAlbum
date published: 2017-08-23

36 Tuấn Hát Quỳnh
type: MusicAlbum
date published: 2017-12-19

Những Tình Khúc Phạm Duy - Trịnh Công Sơn
type: MusicAlbum
date published: 2018-03-01

Anh Yêu Em
type: MusicAlbum
date published: 2018-08-09

Đức Tuấn- Đôi Mắt Người Sơn Tây
type: MusicAlbum
date published: 2018-08-09

Đức Tuấn- Hát Tình Ca Phạm Duy
type: MusicAlbum
date published: 2018-08-09

Những tình khúc Phạm Duy - Trịnh Công Sơn
type: MusicAlbum
date published: 2018-08-09

Trẻ Mãi
type: MusicAlbum
date published: 2018-08-13

Duc Tuan Phu Quang in Symphony
type: MusicAlbum
date published: 2018-12-28

Đức Tuấn Phú Quang in Symphony
type: MusicAlbum
date published: 2018-12-28

Ly Rượu Mừng
type: MusicAlbum
date published: 2019-01-18
track: Ly Rượu Mừng
  type: MusicRecording
  duration: PT4M1S
  duration ms: 241906
  explicit: false
  by artist: Đức Tuấn
  in album: Ly Rượu Mừng
    type: MusicAlbum
    date published: 2019-01-18
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: TCAEA1808822
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958774
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEA1808822
  additional property: OTSTimestamp
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    value: 2026-07-19T22:36:18Z
  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 0xcdca4815e98edf71a6fe8fd7c0550254c28c1852f6696a4a2999394be8008832. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:36:18Z), 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/TCAEA1808822.
    date published: 2026-07-19T22:36:18Z
  audio: Ly Rượu Mừng
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 159.821
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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      value: 0.506
    additional property: Loudness (dB)
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    additional property: Key Name
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Dã Tràng Ca (Kỷ Niệm 80 Năm Ngày Sinh Nhạc Sĩ Trịnh Công Sơn)
type: MusicAlbum
date published: 2019-02-28

Một Ngày Ta Được Yêu
type: MusicAlbum
date published: 2019-03-14
track: Mùa Đông Của Anh
  type: MusicRecording
  duration: PT5M35S
  duration ms: 335510
  explicit: false
  by artist: Đức Tuấn
  in album: Một Ngày Ta Được Yêu
    type: MusicAlbum
    date published: 2019-03-14
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: TCAED1942154
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-03T07:20:05+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x570388d1bcdcfd269538d7f66dcec88d650922b423f55a361feb738d8f7f9a54
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956500
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956500
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAED1942154
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T13:55:21Z
  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 0x570388d1bcdcfd269538d7f66dcec88d650922b423f55a361feb738d8f7f9a54. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCAED1942154.
    date published: 2026-07-03T13:55:21Z
  audio: Mùa Đông Của Anh
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 97.943
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.571
    additional property: Energy
      type: PropertyValue
      value: 0.395
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.752
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.089
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.439
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.54
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Đóa Hoa Vô Thường
type: MusicAlbum
date published: 2019-04-01

Ta Thấy Gì Đêm Nay
type: MusicAlbum
date published: 2019-04-27

Mùa Hạ Cuối Cùng
type: MusicAlbum
date published: 2019-05-23

Tình Khúc Chiều Mưa
type: MusicAlbum
date published: 2019-11-10

Trọn Một Kiếp Yêu
type: MusicAlbum
date published: 2020-06-16
track: Cho Em Quên Tuổi Ngọc
  type: MusicRecording
  duration: PT5M37S
  duration ms: 337022
  explicit: false
  by artist: Đức Tuấn
  in album: Trọn Một Kiếp Yêu
    type: MusicAlbum
    date published: 2020-06-16
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: FR2X42416060
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5c2f6f7656be2a2dd046e3d11f0a6535f5c96c701c64d68560020d7b87dd2c79
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958461
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42416060
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T23:18:11Z
  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 0x5c2f6f7656be2a2dd046e3d11f0a6535f5c96c701c64d68560020d7b87dd2c79. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FR2X42416060.
    date published: 2026-07-17T23:18:11Z
  audio: Cho Em Quên Tuổi Ngọc
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.203
    additional property: Energy
      type: PropertyValue
      value: 0.309
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.916
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.104
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.171
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.629
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Thành Phố Buồn
  type: MusicRecording
  duration: PT5M35S
  duration ms: 335282
  explicit: false
  by artist: Đức Tuấn
  in album: Trọn Một Kiếp Yêu
    type: MusicAlbum
    date published: 2020-06-16
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: FR2X42416061
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959002
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42416061
  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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7be7b2ddf34800975cd85e26346c96695e1346aee573283f5f62da1f09f3fd. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/FR2X42416061.
    date published: 2026-07-21T11:47:29Z
  audio: Thành Phố Buồn
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
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      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.261
    additional property: Energy
      type: PropertyValue
      value: 0.236
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.858
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.13
    additional property: Liveness
      type: PropertyValue
      value: 0.12
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.143
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.944
    additional property: Key Name
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      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Kiếp Nào Có Yêu Nhau
type: MusicAlbum
date published: 2021-03-01

Yêu Trong Ánh Sáng
type: MusicAlbum
date published: 2021-03-01

Music Of The Night
type: MusicAlbum
date published: 2021-03-01

Đôi Mắt Người Sơn Tây
type: MusicAlbum
date published: 2021-03-01

Tiếng Hát Trương Chi
type: MusicAlbum
date published: 2021-03-01

Sài Gòn Không Em
type: MusicAlbum
date published: 2022-01-01

Bài Tình Ca Đêm
type: MusicAlbum
date published: 2024-03-22
track: Vì Ngày Em Còn Bên Tôi
  type: MusicRecording
  duration: PT5M16S
  duration ms: 316573
  explicit: false
  by artist: Đức Tuấn
  in album: Bài Tình Ca Đêm
    type: MusicAlbum
    date published: 2024-03-22
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: VNA0M1934276
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T21:09:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x147c3dbe0b6613f3e1232b19445f0346da7a778c5cf0ddb7dd31c30a712c26f8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 956856
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956856
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1934276
  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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147c3dbe0b6613f3e1232b19445f0346da7a778c5cf0ddb7dd31c30a712c26f8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/VNA0M1934276.
    date published: 2026-07-06T01:25:57Z
  audio: Vì Ngày Em Còn Bên Tôi
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    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.348
    additional property: Energy
      type: PropertyValue
      value: 0.438
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.932
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.103
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.391
    additional property: Loudness (dB)
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      value: -8.225
    additional property: Key Name
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    additional property: Mode Name
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Requiem
type: MusicAlbum
date published: 2024-03-26

50 (Những Bài Ca Không Quên 2)
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date published: 2025-04-22
track: Bài Ca Hy Vọng
  type: MusicRecording
  duration: PT4M13S
  duration ms: 253298
  explicit: false
  by artist: Đức Tuấn
  in album: 50 (Những Bài Ca Không Quên 2)
    type: MusicAlbum
    date published: 2025-04-22
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: FRX202539884
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block-height/958907
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202539884
  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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265084ceb58c490359cfb4ddedcd6d38066dfa8f10a75e8c4561e01eb812ce7e. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:43:34Z), 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/FRX202539884.
    date published: 2026-07-20T18:43:34Z
  audio: Bài Ca Hy Vọng
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.85
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.346
    additional property: Energy
      type: PropertyValue
      value: 0.404
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.671
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.175
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.183
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.147
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Những Ánh Sao Đêm
  type: MusicRecording
  duration: PT3M36S
  duration ms: 216000
  explicit: false
  by artist: Đức Tuấn
  in album: 50 (Những Bài Ca Không Quên 2)
    type: MusicAlbum
    date published: 2025-04-22
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: FRX202539885
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T15:20:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5ce694be384cf3bdb3e913ae0355b9051d68d1adfbcb9b5cbf7b4487c4b2e846
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958448
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958448
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202539885
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T19:49:21Z
  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 0x5ce694be384cf3bdb3e913ae0355b9051d68d1adfbcb9b5cbf7b4487c4b2e846. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FRX202539885.
    date published: 2026-07-17T19:49:21Z
  audio: Những Ánh Sao Đêm
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.944
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.516
    additional property: Energy
      type: PropertyValue
      value: 0.575
    additional property: Speechiness
      type: PropertyValue
      value: 0.068
    additional property: Acousticness
      type: PropertyValue
      value: 0.486
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.078
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.303
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.51
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Đường Chúng Ta Đi
  type: MusicRecording
  duration: PT4M36S
  duration ms: 276164
  explicit: false
  by artist: Đức Tuấn
  in album: 50 (Những Bài Ca Không Quên 2)
    type: MusicAlbum
    date published: 2025-04-22
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: FRX202539887
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T21:19:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x22ce921fc5b8dd2600efa662bc206736894a3df5a9f9f27563de82b5ebf28e98
  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: Đường Chúng Ta Đi
track: Dáng Đứng Việt Nam
track: Cùng Hành Quân Giữa Mùa Xuân

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956634

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956634

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202539887

OTSTimestamp
type: PropertyValue
value: 2026-07-04T10:04:33Z

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 0x22ce921fc5b8dd2600efa662bc206736894a3df5a9f9f27563de82b5ebf28e98. 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/FRX202539887.
date published: 2026-07-04T10:04:33Z

Đường Chúng Ta Đi
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 145.905
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.522
additional property: Energy
  type: PropertyValue
  value: 0.728
additional property: Speechiness
  type: PropertyValue
  value: 0.071
additional property: Acousticness
  type: PropertyValue
  value: 0.389
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.082
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.452
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.573
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Dáng Đứng Việt Nam
type: MusicRecording
duration: PT4M31S
duration ms: 271304
explicit: false
by artist: Đức Tuấn
in album: 50 (Những Bài Ca Không Quên 2)
  type: MusicAlbum
  date published: 2025-04-22
genre: bolero
genre: vietnamese bolero
genre: v-pop
isrc code: FRX202539889
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T12:56:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x98b074a22a99153e8dd481b74c203239aaaefdb98adf7cfd9b7baf337c6562bb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202539889
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b074a22a99153e8dd481b74c203239aaaefdb98adf7cfd9b7baf337c6562bb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202539889.
  date published: 2026-07-05T01:12:41Z
audio: Dáng Đứng Việt Nam
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.052
  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: 0.534
  additional property: Energy
    type: PropertyValue
    value: 0.634
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.465
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.143
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.503
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Cùng Hành Quân Giữa Mùa Xuân
type: MusicRecording
duration: PT4M15S
duration ms: 255428
explicit: false
by artist: Đức Tuấn
in album: 50 (Những Bài Ca Không Quên 2)
  type: MusicAlbum
  date published: 2025-04-22
genre: bolero
genre: vietnamese bolero
genre: v-pop
isrc code: FRX202539891
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T01:36:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x60f823524e5c914ad12ab08981e9a7f12791f0e5a281a567fc367f5d14b52b93
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956862
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956862
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX202539891
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T02:10:22Z
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 0x60f823524e5c914ad12ab08981e9a7f12791f0e5a281a567fc367f5d14b52b93. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/FRX202539891.
  date published: 2026-07-06T02:10:22Z
audio: Cùng Hành Quân Giữa Mùa Xuân
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.014
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.729
  additional property: Energy
    type: PropertyValue
    value: 0.69
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.202
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.732
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.592
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Lời Dạy Cuối Cùng Của Cha
type: MusicAlbum
date published: 2025-07-13