Trung Đức
type: MusicGroup
genre: vietnamese bolero
popularity: 19
followers: 5507
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0b7000a80588cfbcfe6f969203b1db6c57bb452957a0ba2109ede4c072879d8d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cd01620c-81f3-41e4-8efa-fcdb1a1f4c4d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cd01620c-81f3-41e4-8efa-fcdb1a1f4c4d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cd01620c-81f3-41e4-8efa-fcdb1a1f4c4d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0b7000a80588cfbcfe6f969203b1db6c57bb452957a0ba2109ede4c072879d8d","name":"Trung Đức","registered_at":"2026-06-15T01:58:36Z","symbol":"NIM0646337","token_address":"0xd9c8ec11e8f4f71c45fd6e3ec3c43e2602a7cec4","type":"artist","uuid":"cd01620c-81f3-41e4-8efa-fcdb1a1f4c4d"}
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 0x0b7000a80588cfbcfe6f969203b1db6c57bb452957a0ba2109ede4c072879d8d. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd01620c-81f3-41e4-8efa-fcdb1a1f4c4d.json and https://artists.proofprofile.net/proofs/artist/cd01620c-81f3-41e4-8efa-fcdb1a1f4c4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:52:51Z
  text: {"copyright_id":"0x0b7000a80588cfbcfe6f969203b1db6c57bb452957a0ba2109ede4c072879d8d","name":"Trung Đức","registered_at":"2026-06-15T01:58:36Z","symbol":"NIM0646337","token_address":"0xd9c8ec11e8f4f71c45fd6e3ec3c43e2602a7cec4","type":"artist","uuid":"cd01620c-81f3-41e4-8efa-fcdb1a1f4c4d"}
album: Em Ở Nơi Đâu
  type: MusicAlbum
  date published: 2015-01-01
  track: Đường Trường Sơn Xe Anh Qua
    type: MusicRecording
    duration: PT3M28S
    duration ms: 208391
    explicit: false
    by artist: Trung Đức
    in album: Em Ở Nơi Đâu
      type: MusicAlbum
      date published: 2015-01-01
    genre: vietnamese bolero
    isrc code: VNA0F1799007
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T04:20:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc652080034a242fc685d7d8c0e8cd3a25c4ff333f3a18a547b5d06210cc7fd84
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958238
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958238
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1799007
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T04:30:31Z
    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 0xc652080034a242fc685d7d8c0e8cd3a25c4ff333f3a18a547b5d06210cc7fd84. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/VNA0F1799007.
      date published: 2026-07-16T04:30:31Z
    audio: Đường Trường Sơn Xe Anh Qua
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 159.955
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.521
      additional property: Energy
        type: PropertyValue
        value: 0.728
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.087
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.187
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.54
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.513
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Nắng Ấm Quê Hương
  type: MusicAlbum
  date published: 2015-01-01
  track: Nhịp Cầu Nối Những Bờ Vui
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207608
    explicit: false
    by artist: Trung Đức
    in album: Nắng Ấm Quê Hương
      type: MusicAlbum
      date published: 2015-01-01
    genre: vietnamese bolero
    isrc code: VNA0F1799087
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-11T05:42:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xae380b7fa118c5076eb19c1ae5bd2dde63ea6e79fe32e7fbb69d6e42f30e4950
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957546
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957546
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1799087
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-11T09:35:53Z
    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 0xae380b7fa118c5076eb19c1ae5bd2dde63ea6e79fe32e7fbb69d6e42f30e4950. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/VNA0F1799087.
      date published: 2026-07-11T09:35:53Z
    audio: Nhịp Cầu Nối Những Bờ Vui
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.069
      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: 0.454
      additional property: Energy
        type: PropertyValue
        value: 0.672
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.276
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.089
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Nắng Ấm Quê Hương
album: Dòng sông quê anh, dòng sông quê em
album: Cô láng giềng
album: Về quê thăm mẹ
album: Nửa Đêm Nhớ Bậu
album: Cô Láng Giềng
album: Thì Thầm Với Dòng Sông
album: Có Chàng Trai Viết Lên Cây
album: Bỏ Lỡ Một Người
album: Nếu Ta Không May
album: Buồn Thì Cứ Khóc Đi
album: Anh Ở Đầu Sông, Em Cuối Sông
album: Vui Mở Đường

Valence (Positivity)
type: PropertyValue
value: 0.24

Loudness (dB)
type: PropertyValue
value: -4.679

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Minor

Nắng Ấm Quê Hương
type: MusicRecording
duration: PT4M14S
duration ms: 254471
explicit: false
by artist: Trung Đức
in album: Nắng Ấm Quê Hương
  type: MusicAlbum
  date published: 2015-01-01
genre: vietnamese bolero
isrc code: VNA0F1799091
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T19:16:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9d81c9d3ca516b1d6d1ad4168fcaedc12dbdc23697f1ad0fd76c665d068650e4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958931
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958931
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1799091
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T21:15:01Z
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 0x9d81c9d3ca516b1d6d1ad4168fcaedc12dbdc23697f1ad0fd76c665d068650e4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/VNA0F1799091.
  date published: 2026-07-20T21:15:01Z
audio: Nắng Ấm Quê Hương
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 74.731
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.264
  additional property: Energy
    type: PropertyValue
    value: 0.669
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.26
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.146
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.211
  additional property: Loudness (dB)
    type: PropertyValue
    value: -4.753
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Dòng sông quê anh, dòng sông quê em
type: MusicAlbum
date published: 2018-01-01

Cô láng giềng
type: MusicAlbum
date published: 2018-01-01

Về quê thăm mẹ
type: MusicAlbum
date published: 2018-01-01

Nửa Đêm Nhớ Bậu
type: MusicAlbum
date published: 2018-07-30

Cô Láng Giềng
type: MusicAlbum
date published: 2018-08-17

Thì Thầm Với Dòng Sông
type: MusicAlbum
date published: 2018-08-28

Có Chàng Trai Viết Lên Cây
type: MusicAlbum
date published: 2020-09-22

Bỏ Lỡ Một Người
type: MusicAlbum
date published: 2020-12-19

Nếu Ta Không May
type: MusicAlbum
date published: 2020-12-24

Buồn Thì Cứ Khóc Đi
type: MusicAlbum
date published: 2020-12-30

Anh Ở Đầu Sông, Em Cuối Sông
type: MusicAlbum
date published: 2021-03-01

Vui Mở Đường
type: MusicAlbum
date published: 2021-03-01