Kha
type: MusicGroup
genre: vietnamese hip hop
genre: vietnamese lo-fi
genre: vietnam indie
genre: vinahouse
genre: v-pop
popularity: 50
followers: 180748
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2a95b41baa2ae1fdbcef3019f4858df01ef533ff5ad786ec258588276a7603d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953408
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953408
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7cff5aa8-26a0-46bc-9f33-1d428e33a68d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7cff5aa8-26a0-46bc-9f33-1d428e33a68d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7cff5aa8-26a0-46bc-9f33-1d428e33a68d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:28:13Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a95b41baa2ae1fdbcef3019f4858df01ef533ff5ad786ec258588276a7603d8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cff5aa8-26a0-46bc-9f33-1d428e33a68d.json and https://artists.proofprofile.net/proofs/artist/7cff5aa8-26a0-46bc-9f33-1d428e33a68d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: Ký Sự Ngọt Ngào
  type: MusicAlbum
  date published: 2019-06-20
  track: Ký Sự Ngọt Ngào
    type: MusicRecording
    duration: PT4M30S
    duration ms: 270014
    explicit: false
    by artist: Kha
    in album: Ký Sự Ngọt Ngào
      type: MusicAlbum
      date published: 2019-06-20
    genre: vietnamese hip hop
    genre: vietnamese lo-fi
    genre: vietnam indie
    genre: vinahouse
    genre: v-pop
    isrc code: QZK6L2030186
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-11T13:04:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb1ee18e410c6eb0bf1a24db4e0f379f2b6173ee3df55c75f551f3667241f8a09
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957573
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957573
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6L2030186
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-11T13:43:13Z
    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 0xb1ee18e410c6eb0bf1a24db4e0f379f2b6173ee3df55c75f551f3667241f8a09. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/QZK6L2030186.
      date published: 2026-07-11T13:43:13Z
    audio: Ký Sự Ngọt Ngào
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.017
      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: 0.905
      additional property: Energy
        type: PropertyValue
        value: 0.411
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.091
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.075
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.669
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.238
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ký Sự Ngọt Ngào
  type: MusicAlbum
  date published: 2019-06-20
album: Lời Yêu Ngây Dại
  type: MusicAlbum
  date published: 2019-06-20
album: Ký Sự Ngọt Ngào
  type: MusicAlbum
  date published: 2019-06-20
album: Lời Yêu Ngây Dại
  type: MusicAlbum
  date published: 2019-08-12
album: Lời Yêu Ngây Dại
  type: MusicAlbum
  date published: 2019-12-20
album: Ký Sự Ngọt Ngào
  type: MusicAlbum
  date published: 2019-12-20
album: Lời Yêu Ngây Dại
  type: MusicAlbum
  date published: 2019-12-20
album: Lời Yêu Ngây Dại
  type: MusicAlbum
  date published: 2019-12-20
album: Lời Yêu Ngây Dại (Remix)
  type: MusicAlbum
  date published: 2020-01-01
album: Em Có Nghe
  type: MusicAlbum
  date published: 2020-02-26
album: Em Có Nghe
  type: MusicAlbum
  date published: 2020-02-26
album: Em Không Cô Đơn
  type: MusicAlbum
  date published: 2020-11-27
album: Em Không Cô Đơn
  type: MusicAlbum
  date published: 2020-11-27
album: Em Không Cô Đơn
  type: MusicAlbum
  date published: 2020-11-27
album: H In My Arms
  type: MusicAlbum
  date published: 2021-01-22
album: H In My Arms
  type: MusicAlbum
  date published: 2021-01-22
album: H In My Arms
  type: MusicAlbum
  date published: 2021-01-22
album: Giấc Mộng
  type: MusicAlbum
  date published: 2021-03-26
album: Giấc Mộng
  type: MusicAlbum
  date published: 2021-03-26
album: Giấc Mộng
  type: MusicAlbum
  date published: 2021-03-26
album: Đoạn Đường Sao Băng
  type: MusicAlbum
  date published: 2021-07-17
album: Đoạn Đường Sao Băng
  type: MusicAlbum
  date published: 2021-07-17
album: Đoạn Đường Sao Băng
  type: MusicAlbum
  date published: 2021-07-17
album: Kha - Lofi Series
album: Trôi
album: Nỗi Nhớ Khi Xưa
album: Muốn Ôm Lấy Em
album: Kha - Lofi Series (Lofi Version)
album: Ngại Ngùng
album: Hoài mong
album: tình
album: Tate Tate Kalay Kyay Kwal
album: Ước Nguyện
album: Nhịp Đập Con Tim
album: Điệp Khúc Tình Si
album: Muôn Ngàn Giấc Mơ
album: tình 2
album: Trọn Đời

Em Không Cô Đơn
type: MusicAlbum
date published: 2021-11-27

Kha - Lofi Series
type: MusicAlbum
date published: 2022-02-23

Em Có Nghe
type: MusicAlbum
date published: 2022-02-26

Em Có Nghe
type: MusicAlbum
date published: 2022-02-26

Trôi
type: MusicAlbum
date published: 2022-06-17

Trôi
type: MusicAlbum
date published: 2022-06-17

Trôi
type: MusicAlbum
date published: 2022-06-17

Nỗi Nhớ Khi Xưa
type: MusicAlbum
date published: 2022-10-20

Nỗi Nhớ Khi Xưa
type: MusicAlbum
date published: 2022-10-20
track: Nỗi Nhớ Khi Xưa
  type: MusicRecording
  duration: PT4M40S
  duration ms: 280250
  explicit: false
  by artist: Kha
  in album: Nỗi Nhớ Khi Xưa
    type: MusicAlbum
    date published: 2022-10-20
  genre: vietnamese hip hop
  genre: vietnamese lo-fi
  genre: vietnam indie
  genre: vinahouse
  genre: v-pop
  isrc code: QMDA62278072
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-14T20:08:32+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc45e0738e5207c4f6f4f45aa8e14b36396efeaedb4040e4eb997f0714984a592
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958060
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958060
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62278072
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-14T20:39:42Z
  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 0xc45e0738e5207c4f6f4f45aa8e14b36396efeaedb4040e4eb997f0714984a592. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QMDA62278072.
    date published: 2026-07-14T20:39:42Z
  audio: Nỗi Nhớ Khi Xưa
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 88.003
    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: 0.754
    additional property: Energy
      type: PropertyValue
      value: 0.345
    additional property: Speechiness
      type: PropertyValue
      value: 0.074
    additional property: Acousticness
      type: PropertyValue
      value: 0.62
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.082
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.204
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.915
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Nỗi Nhớ Khi Xưa
type: MusicAlbum
date published: 2022-10-20

Muốn Ôm Lấy Em
type: MusicAlbum
date published: 2023-01-10

Muốn Ôm Lấy Em
type: MusicAlbum
date published: 2023-01-10

Muốn Ôm Lấy Em
type: MusicAlbum
date published: 2023-01-10

Kha - Lofi Series (Lofi Version)
type: MusicAlbum
date published: 2023-02-23

Kha - Lofi Series
type: MusicAlbum
date published: 2023-02-23

Ngại Ngùng
type: MusicAlbum
date published: 2023-05-06

Ngại Ngùng
type: MusicAlbum
date published: 2023-05-06

Ngại Ngùng
type: MusicAlbum
date published: 2023-05-06

Hoài mong
type: MusicAlbum
date published: 2023-12-09

tình
type: MusicAlbum
date published: 2023-12-14

Tate Tate Kalay Kyay Kwal
type: MusicAlbum
date published: 2024-07-28
track: Tate Tate Kalay Kyay Kwal
  type: MusicRecording
  duration: PT4M18S
  duration ms: 258459
  explicit: false
  by artist: Kha
  in album: Tate Tate Kalay Kyay Kwal
    type: MusicAlbum
    date published: 2024-07-28
  genre: vietnamese hip hop
  genre: vietnamese lo-fi
  genre: vietnam indie
  genre: vinahouse
  genre: v-pop
  isrc code: THSOH2406119
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T19:52:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x17bcf0882967a13f462a1da2d53dbfddf82b48b93472e6138427dbc36d5405ac
  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/THSOH2406119
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bcf0882967a13f462a1da2d53dbfddf82b48b93472e6138427dbc36d5405ac. 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/THSOH2406119.
    date published: 2026-07-06T01:25:57Z
  audio: Tate Tate Kalay Kyay Kwal
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.989
    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: 0.456
    additional property: Energy
      type: PropertyValue
      value: 0.46
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.512
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.08
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.156
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.271
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Ước Nguyện
type: MusicAlbum
date published: 2024-10-05

Nhịp Đập Con Tim
type: MusicAlbum
date published: 2024-11-29
track: Nhịp Đập Con Tim
  type: MusicRecording
  duration: PT4M5S
  duration ms: 245161
  explicit: false
  by artist: Kha
  in album: Nhịp Đập Con Tim
    type: MusicAlbum
    date published: 2024-11-29
  genre: vietnamese hip hop
  genre: vietnamese lo-fi
  genre: vietnam indie
  genre: vinahouse
  genre: v-pop
  isrc code: QMFME2441669
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x054651703fef39206d28a212f1e7ffafe4015b6168c83789e9935c88d36b9901
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958474
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958474
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2441669
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T00:59:09Z
  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 0x054651703fef39206d28a212f1e7ffafe4015b6168c83789e9935c88d36b9901. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2441669.
    date published: 2026-07-18T00:59:09Z
  audio: Nhịp Đập Con Tim
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 93.036
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.483
    additional property: Energy
      type: PropertyValue
      value: 0.586
    additional property: Speechiness
      type: PropertyValue
      value: 0.026
    additional property: Acousticness
      type: PropertyValue
      value: 0.052
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.9
    additional property: Liveness
      type: PropertyValue
      value: 0.279
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.647
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.392
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Điệp Khúc Tình Si
type: MusicAlbum
date published: 2024-12-21

Muôn Ngàn Giấc Mơ
type: MusicAlbum
date published: 2025-03-12

tình 2
type: MusicAlbum
date published: 2025-03-13
track: Nhịp Đập Con Tim
  type: MusicRecording
  duration: PT4M5S
  duration ms: 245161
  explicit: false
  by artist: Kha
  in album: tình 2
    type: MusicAlbum
    date published: 2025-03-13
  genre: vietnamese hip hop
  genre: vietnamese lo-fi
  genre: vietnam indie
  genre: vinahouse
  genre: v-pop
  isrc code: QMFME2441669
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-14T20:35:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x054651703fef39206d28a212f1e7ffafe4015b6168c83789e9935c88d36b9901
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958063
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958063
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2441669
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-14T21:07:34Z
  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 0x054651703fef39206d28a212f1e7ffafe4015b6168c83789e9935c88d36b9901. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QMFME2441669.
    date published: 2026-07-14T21:07:34Z
  audio: Nhịp Đập Con Tim
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 93.039
    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
      value: 0.485
    additional property: Energy
      type: PropertyValue
      value: 0.586
    additional property: Speechiness
      type: PropertyValue
      value: 0.025
    additional property: Acousticness
      type: PropertyValue
      value: 0.053
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.902
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.642
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.391
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Điệp Khúc Tình Si
  type: MusicRecording
  duration: PT4M7S
  duration ms: 247423
  explicit: false
  by artist: Kha
  in album: tình 2
    type: MusicAlbum
    date published: 2025-03-13
  genre: vietnamese hip hop
  genre: vietnamese lo-fi
  genre: vietnam indie
  genre: vinahouse
  genre: v-pop
  isrc code: VNA2F2403164
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
    value: 2026-07-15T10:54:47+00:00
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    value: https://explorer.copyrightchains.com/tx/0x6d8699b248ca234206af04f375e445f421cc6a01d3f04016123f6572e24738cd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958152
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958152
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA2F2403164
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T13:57:27Z
  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 0x6d8699b248ca234206af04f375e445f421cc6a01d3f04016123f6572e24738cd. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:57:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA2F2403164.
    date published: 2026-07-15T13:57:27Z
  audio: Điệp Khúc Tình Si
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 98.028
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.555
    additional property: Energy
      type: PropertyValue
      value: 0.603
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.231
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.3
    additional property: Liveness
      type: PropertyValue
      value: 0.217
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.456
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.37
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Muôn Ngàn Giấc Mơ
  type: MusicRecording
  duration: PT3M50S
  duration ms: 230086
  explicit: false
  by artist: Kha
  in album: tình 2
    type: MusicAlbum
    date published: 2025-03-13
  genre: vietnamese hip hop
  genre: vietnamese lo-fi
  genre: vietnam indie
  genre: vinahouse
  genre: v-pop
  isrc code: VNA2F2500155
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  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: Muôn Ngàn Giấc Mơ

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-16T04:03:31+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x022ccec75a089ac5b254803301da3c9ac1b8d8794d388ef4998aa02a4c84b342

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958245

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958245

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA2F2500155

OTSTimestamp
type: PropertyValue
value: 2026-07-16T07:03:00Z

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 0x022ccec75a089ac5b254803301da3c9ac1b8d8794d388ef4998aa02a4c84b342. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:03:00Z), 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/VNA2F2500155.
date published: 2026-07-16T07:03:00Z

Muôn Ngàn Giấc Mơ
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 114.998
additional property: Musical Key
  type: PropertyValue
  value: 3
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.605
additional property: Energy
  type: PropertyValue
  value: 0.611
additional property: Speechiness
  type: PropertyValue
  value: 0.03
additional property: Acousticness
  type: PropertyValue
  value: 0.085
additional property: Instrumentalness
  type: PropertyValue
  value: 0.249
additional property: Liveness
  type: PropertyValue
  value: 0.236
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.527
additional property: Loudness (dB)
  type: PropertyValue
  value: -8.236
additional property: Key Name
  type: PropertyValue
  value: Eb
additional property: Mode Name
  type: PropertyValue
  value: Major

Trọn Đời
type: MusicAlbum
date published: 2025-09-17