Hoàng Châu
type: MusicGroup
genre: vietnamese bolero
genre: v-pop
popularity: 20
followers: 3423
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x453f036d86f8da55b08ef1c2ab461a284cc56a44ee7e0f1e22fc35c056184e09
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953770
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953770
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b63f586f-b56f-49b9-a5aa-8cf4ab62a3b4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b63f586f-b56f-49b9-a5aa-8cf4ab62a3b4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b63f586f-b56f-49b9-a5aa-8cf4ab62a3b4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:50:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x453f036d86f8da55b08ef1c2ab461a284cc56a44ee7e0f1e22fc35c056184e09","name":"Hoàng Châu","registered_at":"2026-06-14T23:46:29Z","symbol":"NIM0614742","token_address":"0xc709cf1e405afa4cb6fda0c9110451be8c42d5fc","type":"artist","uuid":"b63f586f-b56f-49b9-a5aa-8cf4ab62a3b4"}
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 0x453f036d86f8da55b08ef1c2ab461a284cc56a44ee7e0f1e22fc35c056184e09. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b63f586f-b56f-49b9-a5aa-8cf4ab62a3b4.json and https://artists.proofprofile.net/proofs/artist/b63f586f-b56f-49b9-a5aa-8cf4ab62a3b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
  text: {"copyright_id":"0x453f036d86f8da55b08ef1c2ab461a284cc56a44ee7e0f1e22fc35c056184e09","name":"Hoàng Châu","registered_at":"2026-06-14T23:46:29Z","symbol":"NIM0614742","token_address":"0xc709cf1e405afa4cb6fda0c9110451be8c42d5fc","type":"artist","uuid":"b63f586f-b56f-49b9-a5aa-8cf4ab62a3b4"}
album: Rạng Đông Tuyển Tập 53
  type: MusicAlbum
  date published: 2025-01-06
album: Tình Ca Yến Khoa Hoàng Châu
  type: MusicAlbum
  date published: 2024-11-03
album: Tình Khúc Anh Bằng
  type: MusicAlbum
  date published: 2024-10-30
album: Nữ Hoàng Nhạc Sến Miền Tây
  type: MusicAlbum
  date published: 2024-10-30
album: Khúc Tình Ca Lam Phương
  type: MusicAlbum
  date published: 2024-10-29
album: Ngày Tận Thế
  type: MusicAlbum
  date published: 2024-10-23
album: Vừa Lòng Anh Chưa
  type: MusicAlbum
  date published: 2024-10-18
album: Xuân Sum Vầy, Xuân Tình Yêu
  type: MusicAlbum
  date published: 2024-09-27
album: Một Ngày Anh Đi
  type: MusicAlbum
  date published: 2024-09-27
album: Vũ Điệu Hoàng Châu (Remix)
  type: MusicAlbum
  date published: 2024-09-26
album: Vì Lỡ Thương Nhau
  type: MusicAlbum
  date published: 2024-09-26
album: Trái Tim Tôi Sẽ Gạt Tên Anh
  type: MusicAlbum
  date published: 2024-09-26
  track: Khi Có Em Trong Đời
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209920
    explicit: false
    by artist: Hoàng Châu
    in album: Trái Tim Tôi Sẽ Gạt Tên Anh
      type: MusicAlbum
      date published: 2024-09-26
    genre: v-pop
    genre: vietnamese-bolero
    isrc code: DGA0P2405240
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T21:37:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x19948f04c90524d12cd71f5a1943c60c923f4a90a836df411e43b4d38362116b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957118
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957118
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2405240
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19948f04c90524d12cd71f5a1943c60c923f4a90a836df411e43b4d38362116b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2405240.
      date published: 2026-07-08T03:20:19Z
    audio: Khi Có Em Trong Đời
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.546
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.461
      additional property: Energy
        type: PropertyValue
        value: 0.48
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.804
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.048
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.471
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.467
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Thanh Âm Tết Xưa
  type: MusicAlbum
  date published: 2024-09-26
album: Phố Hoa - Tình Khúc Hoài An
  type: MusicAlbum
  date published: 2024-09-25
album: Một Thời Mưa Bụi
  type: MusicAlbum
  date published: 2024-09-25
  track: Phút Biệt Ly
    type: MusicRecording
    duration: PT4M26S
    duration ms: 266560
    explicit: false
    by artist: Hoàng Châu
    in album: Một Thời Mưa Bụi
      type: MusicAlbum
      date published: 2024-09-25
    genre: v-pop
    genre: vietnamese-bolero
    isrc code: DGA0L2458303
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-07T15:28:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7783357a1cae81a49d27ab6a76c4b0a8f2652670bc3026366aa67ae301385c40
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 953515
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/953515
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0L2458303
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Phút Biệt Ly
  track: Tình Hồng Như Mơ
  track: Tình Vỡ Tan
album: Khi Ta Yêu Nhau... Hãy Nói Thật Lòng
album: Điệu Buồn Bolero
album: Hoa Nở Về Đêm
album: Giã Từ
album: Em Có Tin Không
album: Chuyến Đi Về Sáng - Tuyệt Phẩm Trữ Tình
album: Bolero Đêm Vắng
album: Anh Có Biết
album: 1000 Năm Khó Phai
album: Nếu Một Ngày Không Anh
album: Người Đàn Ông Tham Lam
album: Duyên Tiền Định
album: Cặp Đôi Hoàn Chỉnh
album: Tình Mãi Xa
album: Về Đâu Anh Hỡi
album: Tình Cũ
album: Sao Lòng Còn Thương
album: Mưa Rơi Phố Đêm
album: Lạc Trên Lối Cũ
album: Hai Lối Mộng
album: Duyên Phận
album: Buồn Trong Kỷ Niệm
album: Tết Đến Tết Đến
album: Tình Miền Tây 1
album: Tình Khúc Vinh Sử/Solo Cùng Tình Bolero
track: Áo Mới Ngày Mai
track: Giận Hờn 2

OTSTimestamp
type: PropertyValue
value: 2026-06-13T12:53:06Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7783357a1cae81a49d27ab6a76c4b0a8f2652670bc3026366aa67ae301385c40. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DGA0L2458303.
date published: 2026-06-13T12:53:06Z

Phút Biệt Ly
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 130.289
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.592
additional property: Energy
  type: PropertyValue
  value: 0.405
additional property: Speechiness
  type: PropertyValue
  value: 0.034
additional property: Acousticness
  type: PropertyValue
  value: 0.698
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.943
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.411
additional property: Loudness (dB)
  type: PropertyValue
  value: -18.186
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Minor

Tình Hồng Như Mơ
type: MusicRecording
duration: PT5M46S
duration ms: 346680
explicit: false
by artist: Hoàng Châu
in album: Một Thời Mưa Bụi
  type: MusicAlbum
  date published: 2024-09-25
genre: v-pop
genre: vietnamese-bolero
isrc code: DGA0L2458306
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T00:23:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe0351bacfd7f50dc04a7738cd6331879c19debfd9f4e532d58b0740134c6767
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960179
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960179
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0L2458306
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T00:39:11Z
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 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 0xfe0351bacfd7f50dc04a7738cd6331879c19debfd9f4e532d58b0740134c6767. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/DGA0L2458306.
  date published: 2026-07-30T00:39:11Z
audio: Tình Hồng Như Mơ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.674
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.633
  additional property: Energy
    type: PropertyValue
    value: 0.375
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.883
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.269
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.45
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.218
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tình Vỡ Tan
type: MusicRecording
duration: PT5M26S
duration ms: 326760
explicit: false
by artist: Hoàng Châu
in album: Một Thời Mưa Bụi
  type: MusicAlbum
  date published: 2024-09-25
genre: v-pop
genre: vietnamese-bolero
isrc code: DGA0L2458307
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T12:33:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8b074828606d4d8d18f2ef72e2565a9cc1a52d3d2032aa3d7c143b88cd1e2c1a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960258
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960258
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0L2458307
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T12:45:34Z
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 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 0x8b074828606d4d8d18f2ef72e2565a9cc1a52d3d2032aa3d7c143b88cd1e2c1a. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DGA0L2458307.
  date published: 2026-07-30T12:45:34Z
audio: Tình Vỡ Tan
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.653
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.547
  additional property: Energy
    type: PropertyValue
    value: 0.338
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.831
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.174
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.22
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.335
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Khi Ta Yêu Nhau... Hãy Nói Thật Lòng
type: MusicAlbum
date published: 2024-09-25

Điệu Buồn Bolero
type: MusicAlbum
date published: 2024-09-24

Hoa Nở Về Đêm
type: MusicAlbum
date published: 2024-09-24

Giã Từ
type: MusicAlbum
date published: 2024-09-24

Em Có Tin Không
type: MusicAlbum
date published: 2024-09-24

Chuyến Đi Về Sáng - Tuyệt Phẩm Trữ Tình
type: MusicAlbum
date published: 2024-09-24

Bolero Đêm Vắng
type: MusicAlbum
date published: 2024-09-24

Anh Có Biết
type: MusicAlbum
date published: 2024-09-23

1000 Năm Khó Phai
type: MusicAlbum
date published: 2024-09-23

Nếu Một Ngày Không Anh
type: MusicAlbum
date published: 2023-09-29

Người Đàn Ông Tham Lam
type: MusicAlbum
date published: 2023-09-29

Duyên Tiền Định
type: MusicAlbum
date published: 2023-09-29

Cặp Đôi Hoàn Chỉnh
type: MusicAlbum
date published: 2023-09-29
track: Bài Ca Kỷ Niệm
  type: MusicRecording
  duration: PT3M37S
  duration ms: 217079
  explicit: false
  by artist: Hoàng Châu
  in album: Cặp Đôi Hoàn Chỉnh
    type: MusicAlbum
    date published: 2023-09-29
  genre: v-pop
  genre: vietnamese-bolero
  isrc code: VNA0F2316263
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T02:20:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xde8561f504925d8b40db46eeff8752ab9d3d8996644e7ac5c2189b33fb055f90
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960500
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960500
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2316263
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T03:13:03Z
  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 0xde8561f504925d8b40db46eeff8752ab9d3d8996644e7ac5c2189b33fb055f90. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/VNA0F2316263.
    date published: 2026-08-01T03:13:03Z
  audio: Bài Ca Kỷ Niệm
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.326
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.509
    additional property: Energy
      type: PropertyValue
      value: 0.317
    additional property: Speechiness
      type: PropertyValue
      value: 0.056
    additional property: Acousticness
      type: PropertyValue
      value: 0.744
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.547
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.284
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.428
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Chuyến Tàu Hoàng Hôn
  type: MusicRecording
  duration: PT4M55S
  duration ms: 295669
  explicit: false
  by artist: Hoàng Châu
  by artist: Hoài Lâm
  in album: Cặp Đôi Hoàn Chỉnh
    type: MusicAlbum
    date published: 2023-09-29
  genre: v-pop
  genre: vietnamese-bolero
  isrc code: VNA0F2316265
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T13:28:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1be5238c331b6ba34aa9c985a2a273586100f34cb9abe0320807b4c0e7e61a59
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960410
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960410
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2316265
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T13:50:38Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be5238c331b6ba34aa9c985a2a273586100f34cb9abe0320807b4c0e7e61a59. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2316265.
    date published: 2026-07-31T13:50:38Z
  audio: Chuyến Tàu Hoàng Hôn
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.663
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.496
    additional property: Energy
      type: PropertyValue
      value: 0.372
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.624
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.247
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.345
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.664
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Đôi Dép
  type: MusicRecording
  duration: PT5M18S
  duration ms: 318912
  explicit: false
  by artist: Chí Tài
  by artist: Hoàng Châu
  in album: Cặp Đôi Hoàn Chỉnh
    type: MusicAlbum
    date published: 2023-09-29
  isrc code: VNA0F2316266
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T23:26:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x011ad097a41103d35eba87b057f1030b53cebf239e67e8464202593376632ea7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960481
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Đôi Dép
track: Em Ở Đâu
track: Gái Quê
track: Hai Chuyến Tàu Đêm
track: Hãy Trả Lời Em
track: Lời Cuối Cho Em
track: Nhỏ Ơi

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960481

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2316266

OTSTimestamp
type: PropertyValue
value: 2026-07-31T23:51:35Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011ad097a41103d35eba87b057f1030b53cebf239e67e8464202593376632ea7. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/VNA0F2316266.
date published: 2026-07-31T23:51:35Z

Đôi Dép
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 100.823
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.375
additional property: Energy
  type: PropertyValue
  value: 0.136
additional property: Speechiness
  type: PropertyValue
  value: 0.043
additional property: Acousticness
  type: PropertyValue
  value: 0.92
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.103
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.125
additional property: Loudness (dB)
  type: PropertyValue
  value: -18.424
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Minor

Em Ở Đâu
type: MusicRecording
duration: PT6M53S
duration ms: 413040
explicit: false
by artist: Chí Tài
in album: Cặp Đôi Hoàn Chỉnh
  type: MusicAlbum
  date published: 2023-09-29
isrc code: VNA0F2316267
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-08T01:45:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x734032c982d79d3d46a01dbcf0c1af9cfa527ad1eeeb704c181c508181a6d577
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2316267
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 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 0x734032c982d79d3d46a01dbcf0c1af9cfa527ad1eeeb704c181c508181a6d577. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/VNA0F2316267.
  date published: 2026-07-08T03:22:41Z
audio: Em Ở Đâu
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.137
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.497
  additional property: Energy
    type: PropertyValue
    value: 0.434
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.637
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.025
  additional property: Liveness
    type: PropertyValue
    value: 0.671
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.158
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.695
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Gái Quê
type: MusicRecording
duration: PT3M16S
duration ms: 196995
explicit: false
by artist: Hoàng Châu
in album: Cặp Đôi Hoàn Chỉnh
  type: MusicAlbum
  date published: 2023-09-29
genre: v-pop
genre: vietnamese-bolero
isrc code: VNA0F2316268
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T02:31:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x01b22cb4bb2e7f5401a696b8ed123f42936d81c72e02068ba8a33504906cd2c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960500
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2316268
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:13:03Z
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 0x01b22cb4bb2e7f5401a696b8ed123f42936d81c72e02068ba8a33504906cd2c4. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/VNA0F2316268.
  date published: 2026-08-01T03:13:03Z
audio: Gái Quê
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.341
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.687
  additional property: Energy
    type: PropertyValue
    value: 0.473
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.356
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.824
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.571
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.289
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Hai Chuyến Tàu Đêm
type: MusicRecording
duration: PT4M8S
duration ms: 248587
explicit: false
by artist: Hoài Lâm
in album: Cặp Đôi Hoàn Chỉnh
  type: MusicAlbum
  date published: 2023-09-29
genre: bolero
genre: v-pop
genre: vietnamese-bolero
genre: vietnamese-lo-fi
isrc code: VNA0F2316269
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T16:56:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8eff31e2774a2edc67c4518371e67744484e769a5eb32582de8ee16abb99e3ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960284
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960284
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2316269
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:23:26Z
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 0x8eff31e2774a2edc67c4518371e67744484e769a5eb32582de8ee16abb99e3ab. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/VNA0F2316269.
  date published: 2026-07-30T17:23:26Z
audio: Hai Chuyến Tàu Đêm
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.246
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.499
  additional property: Energy
    type: PropertyValue
    value: 0.299
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.775
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.263
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.259
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.21
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Hãy Trả Lời Em
type: MusicRecording
duration: PT5M2S
duration ms: 302712
explicit: false
by artist: Chí Tài
by artist: Hoàng Châu
in album: Cặp Đôi Hoàn Chỉnh
  type: MusicAlbum
  date published: 2023-09-29
isrc code: VNA0F2316270
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:47:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x23a5cb33de8859a4579d10eb0f5ed145c23d3aa087ecfc2d34f769fad699c32c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2316270
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a5cb33de8859a4579d10eb0f5ed145c23d3aa087ecfc2d34f769fad699c32c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2316270.
  date published: 2026-07-08T03:20:19Z
audio: Hãy Trả Lời Em
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.676
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.401
  additional property: Energy
    type: PropertyValue
    value: 0.338
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.541
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.357
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.248
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.582
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Lời Cuối Cho Em
type: MusicRecording
duration: PT4M41S
duration ms: 281658
explicit: false
by artist: Chí Tài
by artist: Hoàng Châu
in album: Cặp Đôi Hoàn Chỉnh
  type: MusicAlbum
  date published: 2023-09-29
isrc code: VNA0F2316273
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T02:40:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd941aca756466dc8672ca78903ac5e4ae57d3650d8e7909f98d5b1d267fa33d3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960500
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2316273
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:13:03Z
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 0xd941aca756466dc8672ca78903ac5e4ae57d3650d8e7909f98d5b1d267fa33d3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/VNA0F2316273.
  date published: 2026-08-01T03:13:03Z
audio: Lời Cuối Cho Em
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 180.882
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.375
  additional property: Energy
    type: PropertyValue
    value: 0.351
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.698
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.339
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.408
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.11
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Nhỏ Ơi
type: MusicRecording
duration: PT3M27S
duration ms: 207272
explicit: false
by artist: Chí Tài
in album: Cặp Đôi Hoàn Chỉnh
  type: MusicAlbum
  date published: 2023-09-29
isrc code: VNA0F2316278
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T05:47:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x358e847971bb3ae15ac216efad78340559cc12fb5515bfacb8335fbe1c15898c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2316278
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 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 0x358e847971bb3ae15ac216efad78340559cc12fb5515bfacb8335fbe1c15898c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/VNA0F2316278.
  date published: 2026-07-02T03:30:09Z
audio: Nhỏ Ơi
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.144
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.543
  additional property: Energy
    type: PropertyValue
    value: 0.169
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.78
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.172
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.235
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.502
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Tình Mãi Xa
type: MusicAlbum
date published: 2023-01-01

Về Đâu Anh Hỡi
type: MusicAlbum
date published: 2021-01-01

Tình Cũ
type: MusicAlbum
date published: 2021-01-01

Sao Lòng Còn Thương
type: MusicAlbum
date published: 2021-01-01

Mưa Rơi Phố Đêm
type: MusicAlbum
date published: 2021-01-01

Lạc Trên Lối Cũ
type: MusicAlbum
date published: 2021-01-01

Hai Lối Mộng
type: MusicAlbum
date published: 2021-01-01

Duyên Phận
type: MusicAlbum
date published: 2021-01-01

Buồn Trong Kỷ Niệm
type: MusicAlbum
date published: 2021-01-01

Tết Đến Tết Đến
type: MusicAlbum
date published: 2020-01-01

Tình Miền Tây 1
type: MusicAlbum
date published: 2020-01-01

Tình Khúc Vinh Sử/Solo Cùng Tình Bolero
type: MusicAlbum
date published: 2020-01-01

Áo Mới Ngày Mai
type: MusicRecording
duration: PT5M27S
duration ms: 327186
explicit: false
by artist: Dương Ngọc Thái
by artist: Hoàng Châu
in album: Tuyển Tập Của Dương Ngọc Thái
  type: MusicAlbum
  date published: 2018-09-27
genre: bolero
genre: v-pop
genre: vietnamese-bolero
isrc code: VNA0M1842237
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T09:29:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd0ce72767daa1220b35fb3879bf56ed6624fe7e0c7a7a9c7c25f03b1742e7210
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960381
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960381
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1842237
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:50:11Z
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 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 0xd0ce72767daa1220b35fb3879bf56ed6624fe7e0c7a7a9c7c25f03b1742e7210. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/VNA0M1842237.
  date published: 2026-07-31T09:50:11Z
audio: Áo Mới Ngày Mai
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 158.691
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.401
  additional property: Energy
    type: PropertyValue
    value: 0.658
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.617
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.485
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.025
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Giận Hờn 2
type: MusicRecording
duration: PT4M24S
duration ms: 264893
explicit: false
by artist: Dương Ngọc Thái
by artist: Hoàng Châu
in album: Tuyển Tập Của Dương Ngọc Thái
  type: MusicAlbum
  date published: 2018-09-27
genre: bolero
genre: v-pop
genre: vietnamese-bolero
isrc code: VNA0M1842261
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T19:46:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x447601b5fce531ec8798b1dcd632a789951779d2899f0678d0e5926e83211cc7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1842261
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T20:09:33Z
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 0x447601b5fce531ec8798b1dcd632a789951779d2899f0678d0e5926e83211cc7. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/VNA0M1842261.
  date published: 2026-07-30T20:09:33Z
audio: Giận Hờn 2
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.146
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.445
  additional property: Energy
    type: PropertyValue
    value: 0.675
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.377
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.131
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.483
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.851
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor