NamDuc
type: MusicGroup
genre: vietnamese hip hop
genre: vietnamese lo-fi
genre: vinahouse
genre: v-pop
popularity: 37
followers: 15162
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x08c45dcc5b9c8b227a28d1bfa6c455d96dacd8d81f46a732112f67c88950ddbb
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/1ce64ee9-ccc3-4975-88d9-fe16e32dd3c0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ce64ee9-ccc3-4975-88d9-fe16e32dd3c0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1ce64ee9-ccc3-4975-88d9-fe16e32dd3c0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin 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 0x08c45dcc5b9c8b227a28d1bfa6c455d96dacd8d81f46a732112f67c88950ddbb. 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/1ce64ee9-ccc3-4975-88d9-fe16e32dd3c0.json and https://artists.proofprofile.net/proofs/artist/1ce64ee9-ccc3-4975-88d9-fe16e32dd3c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Tuyệt Sắc
  type: MusicAlbum
  date published: 2018-03-01
album: Liệu Những Giấc Mơ
  type: MusicAlbum
  date published: 2018-03-01
album: Tuyệt Sắc (Orinn Remix)
  type: MusicAlbum
  date published: 2018-03-01
album: 100 Years Love
  type: MusicAlbum
  date published: 2020-01-21
album: Rượu Tình
  type: MusicAlbum
  date published: 2020-02-19
album: Rượu Tình
  type: MusicAlbum
  date published: 2020-02-19
album: Tuyệt Sắc
  type: MusicAlbum
  date published: 2020-03-09
album: Giọt Sương Nắng (feat. Nguyễn Lê Hữu Khánh) [Remix]
  type: MusicAlbum
  date published: 2020-05-18
album: Giọt Sương Nắng (feat. Nguyễn Lê Hữu Khánh)
  type: MusicAlbum
  date published: 2020-05-18
  track: Giọt Sương Nắng (feat. Nguyễn Lê Hữu Khánh)
    type: MusicRecording
    duration: PT3M52S
    duration ms: 232941
    explicit: false
    by artist: NamDuc
    in album: Giọt Sương Nắng (feat. Nguyễn Lê Hữu Khánh)
      type: MusicAlbum
      date published: 2020-05-18
    genre: vietnamese hip hop
    genre: vietnamese lo-fi
    genre: vinahouse
    genre: v-pop
    isrc code: VNA0M1907713
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T15:50:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd41243962325a177ac3e8644abbb58cc2d74c4f9b9b2db0c9c172387fd95701d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958752
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958752
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1907713
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T16:00:28Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xd41243962325a177ac3e8644abbb58cc2d74c4f9b9b2db0c9c172387fd95701d. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T16:00:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1907713.
      date published: 2026-07-19T16:00:28Z
    audio: Giọt Sương Nắng (feat. Nguyễn Lê Hữu Khánh)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.015
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.812
      additional property: Energy
        type: PropertyValue
        value: 0.7
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.026
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.556
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.539
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tiều Phu Và Công Chúa (feat. Freak D)
  type: MusicAlbum
  date published: 2020-05-21
album: Tuyệt Sắc (Orinn Remix)
  type: MusicAlbum
  date published: 2020-09-09
album: Tuyệt Sắc (Orinn Remix)
  type: MusicAlbum
  date published: 2020-09-09
album: Tuyệt Sắc (Remix)
  type: MusicAlbum
  date published: 2021-01-04
album: Tuyệt Sắc (Longdrae Remix)
  type: MusicAlbum
  date published: 2021-01-05
album: Giọt Sương Nắng (Beat)
  type: MusicAlbum
  date published: 2021-01-15
album: Giọt Sương Nắng
  type: MusicAlbum
  date published: 2021-03-01
album: Mashup 100 Years Love x Rượu tình
  type: MusicAlbum
  date published: 2021-03-07
album: Liệu Những Giấc Mơ
  type: MusicAlbum
  date published: 2021-05-13
album: Cho Con
  type: MusicAlbum
  date published: 2021-08-06
album: Liệu Rằng Em Có Yêu Anh Như Phút Ban Đầu
  type: MusicAlbum
  date published: 2021-10-25
album: Liệu Rằng Em Có Yêu Anh Như Phút Ban Đầu | Zang Remix
  type: MusicAlbum
  date published: 2021-11-10
album: Liệu Rằng Em Có Yêu Anh Như Phút Ban Đầu (Remix)
  type: MusicAlbum
  date published: 2021-11-11
album: Hương Hoa
  type: MusicAlbum
  date published: 2022-02-20
album: Đừng Gọi Cho Anh
  type: MusicAlbum
  date published: 2022-09-15
album: Cùng Bay Vào Giấc Mơ
album: Sẽ Vang Bên Tai Em
album: Em Đã Xa Anh (Bibo Remix)
album: Em Đã Xa Anh
album: Tuyệt Sắc (House Lak)
album: Rượu Tình (Remix House)
album: Tuyệt Sắc (QKhanh x Đông x Thazh Remix)
album: NamDuc (HITStory Live Session)
track: Tuyệt Sắc - Extended Mix

100 Years Love
type: MusicAlbum
date published: 2023-01-03

100 Years Love
type: MusicAlbum
date published: 2023-01-03

Cùng Bay Vào Giấc Mơ
type: MusicAlbum
date published: 2023-06-16

Sẽ Vang Bên Tai Em
type: MusicAlbum
date published: 2023-07-13

Sẽ Vang Bên Tai Em
type: MusicAlbum
date published: 2023-07-13

Em Đã Xa Anh (Bibo Remix)
type: MusicAlbum
date published: 2024-03-08

Em Đã Xa Anh
type: MusicAlbum
date published: 2024-03-08

Tuyệt Sắc (Remix)
type: MusicAlbum
date published: 2025-02-07

Tuyệt Sắc (House Lak)
type: MusicAlbum
date published: 2025-02-07

Tuyệt Sắc (Remix)
type: MusicAlbum
date published: 2025-02-07
track: Tuyệt Sắc - Remix
  type: MusicRecording
  duration: PT2M56S
  duration ms: 176544
  explicit: false
  by artist: NamDuc
  in album: Tuyệt Sắc (Remix)
    type: MusicAlbum
    date published: 2025-02-07
  genre: vietnamese hip hop
  genre: vietnamese lo-fi
  genre: vinahouse
  genre: v-pop
  isrc code: US38Y2507339
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T04:03:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd17db032b413668d5b113f1ab8a54c683af5b17f3628009cbf490cb1d95a5389
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960509
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960509
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US38Y2507339
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T04:30:37Z
  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 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 0xd17db032b413668d5b113f1ab8a54c683af5b17f3628009cbf490cb1d95a5389. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/US38Y2507339.
    date published: 2026-08-01T04:30:37Z
  audio: Tuyệt Sắc - Remix
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.235
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.7
    additional property: Energy
      type: PropertyValue
      value: 0.932
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.013
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.02
    additional property: Liveness
      type: PropertyValue
      value: 0.208
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.937
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.793
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Rượu Tình (Remix House)
type: MusicAlbum
date published: 2025-05-06

Tuyệt Sắc (QKhanh x Đông x Thazh Remix)
type: MusicAlbum
date published: 2025-05-20
track: Tuyệt Sắc - QKhanh x Đông x Thazh Remix
  type: MusicRecording
  duration: PT6M4S
  duration ms: 364397
  explicit: false
  by artist: NamDuc
  in album: Tuyệt Sắc (QKhanh x Đông x Thazh Remix)
    type: MusicAlbum
    date published: 2025-05-20
  genre: vietnamese hip hop
  genre: vietnamese lo-fi
  genre: vinahouse
  genre: v-pop
  isrc code: QM7282554452
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T23:19:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x473ee02831672a472d49eec2bc6529fd86f120bd9ff31db39989e94f5c3604fc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    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/QM7282554452
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:25:57Z
  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 0x473ee02831672a472d49eec2bc6529fd86f120bd9ff31db39989e94f5c3604fc. 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/QM7282554452.
    date published: 2026-07-06T01:25:57Z
  audio: Tuyệt Sắc - QKhanh x Đông x Thazh Remix
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.998
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.674
    additional property: Energy
      type: PropertyValue
      value: 0.839
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.752
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.936
    additional property: Liveness
      type: PropertyValue
      value: 0.696
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.839
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.249
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

NamDuc (HITStory Live Session)
type: MusicAlbum
date published: 2025-07-21

Tuyệt Sắc - Extended Mix
type: MusicRecording
duration: PT4M47S
duration ms: 287653
explicit: false
by artist: 9C Media
by artist: NamDuc
in album: Tuyệt Sắc (Extended Mix)
  type: MusicAlbum
  date published: 2024-06-22
genre: vinahouse
isrc code: DGA062428953
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T07:26:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe7b7867240f29abcee655e36862351e333bf84ef3c277ed3851616451c7c4094
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960222
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960222
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA062428953
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T07:48:45Z
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 0xe7b7867240f29abcee655e36862351e333bf84ef3c277ed3851616451c7c4094. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/DGA062428953.
  date published: 2026-07-30T07:48:45Z
audio: Tuyệt Sắc - Extended Mix
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.401
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.829
  additional property: Energy
    type: PropertyValue
    value: 0.643
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.026
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.068
  additional property: Liveness
    type: PropertyValue
    value: 0.155
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.855
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.011
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major