An Vũ
type: MusicGroup
genre: vietnamese lo-fi
genre: v-pop
popularity: 43
followers: 42342
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x10df4a63a677f01009cd742d000875fdb3099b2899330e57a6bb347fec74f67c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c5e5da9c-9a6b-4f60-a154-ba1344c25eaf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c5e5da9c-9a6b-4f60-a154-ba1344c25eaf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c5e5da9c-9a6b-4f60-a154-ba1344c25eaf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x10df4a63a677f01009cd742d000875fdb3099b2899330e57a6bb347fec74f67c","name":"An Vũ","registered_at":"2026-06-12T09:24:18Z","symbol":"NIM0255265","token_address":"0x732e8f7a892772a5e7c5500029c681739f317bf9","type":"artist","uuid":"c5e5da9c-9a6b-4f60-a154-ba1344c25eaf"}
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 0x10df4a63a677f01009cd742d000875fdb3099b2899330e57a6bb347fec74f67c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5e5da9c-9a6b-4f60-a154-ba1344c25eaf.json and https://artists.proofprofile.net/proofs/artist/c5e5da9c-9a6b-4f60-a154-ba1344c25eaf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x10df4a63a677f01009cd742d000875fdb3099b2899330e57a6bb347fec74f67c","name":"An Vũ","registered_at":"2026-06-12T09:24:18Z","symbol":"NIM0255265","token_address":"0x732e8f7a892772a5e7c5500029c681739f317bf9","type":"artist","uuid":"c5e5da9c-9a6b-4f60-a154-ba1344c25eaf"}
album: Về Bầu Trời Ánh Sáng (Theme Song From ''Chị Tôi")
  type: MusicAlbum
  date published: 2021-09-01
album: Gieo Niềm Đau
  type: MusicAlbum
  date published: 2022-03-08
album: Gieo Niềm Đau
  type: MusicAlbum
  date published: 2022-03-08
album: Tạm biệt cô đơn
  type: MusicAlbum
  date published: 2022-04-05
album: Nghe Tiếng Mưa
  type: MusicAlbum
  date published: 2022-04-26
album: Công Chúa Bong Bóng
  type: MusicAlbum
  date published: 2022-04-27
album: Kiếp Lữ Hành
  type: MusicAlbum
  date published: 2022-04-27
album: Bay Giữa Ngân Hà
  type: MusicAlbum
  date published: 2022-05-29
  track: Bay Giữa Ngân Hà
    type: MusicRecording
    duration: PT3M59S
    duration ms: 239643
    explicit: false
    by artist: An Vũ
    in album: Bay Giữa Ngân Hà
      type: MusicAlbum
      date published: 2022-05-29
    genre: vietnamese lo-fi
    genre: v-pop
    isrc code: QZK6Q2249607
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T21:30:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x46e52b1816f4c769cbf8f3cef32e70ab88cc0a7075d612720aa6c0c7dd4ae57d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6Q2249607
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x46e52b1816f4c769cbf8f3cef32e70ab88cc0a7075d612720aa6c0c7dd4ae57d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6Q2249607.
      date published: 2026-07-04T10:04:33Z
    audio: Bay Giữa Ngân Hà
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 76.905
      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: 0.701
      additional property: Energy
        type: PropertyValue
        value: 0.108
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.97
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.292
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.572
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.367
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Cánh Chim Hải Âu
  type: MusicAlbum
  date published: 2022-05-31
  track: Cánh Chim Hải Âu
    type: MusicRecording
    duration: PT4M48S
    duration ms: 288147
    explicit: false
    by artist: An Vũ
    in album: Cánh Chim Hải Âu
      type: MusicAlbum
      date published: 2022-05-31
    genre: vietnamese lo-fi
    genre: v-pop
    isrc code: QZK6Q2275445
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T01:41:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x50b1a2ccab745ccdbb49eabe63d3daae5ad9a117349d1f3c50aa32486150e1ef
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959087
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959087
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6Q2275445
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T02:05:55Z
    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 0x50b1a2ccab745ccdbb49eabe63d3daae5ad9a117349d1f3c50aa32486150e1ef. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZK6Q2275445.
      date published: 2026-07-22T02:05:55Z
    audio: Cánh Chim Hải Âu
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.591
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Em Luôn Ở Trong Tâm Trí Anh
album: Con Tim Mong Manh
album: Ngôi Nhà Hoa Hồng
album: Hình Bóng Của Mây
album: Con Đường Mưa
album: Zui Zui Zui
album: Đêm Trăng Tình Yêu
album: Món Quà Vô Giá
album: Bình Minh Dịu Êm
album: Nỗi Nhớ Đóng Băng
album: Vì Anh Ở Đây
album: Bay Giữa Ngân Hà (Lofi)
album: Khi Ta Lớn
album: Nếu Anh Nói Ra
album: Yêu Lại Từ Đầu
album: Khi Ta Lớn (Lo-fi)
album: Vì Anh Lại Nhớ Em
album: Chạm Khẽ Tim Anh Một Chút Thôi
album: Anh Đã Có Một Ngày Thật Tệ
album: (SpeedUp) Chạm Khẽ Tim Anh Một Chút Thôi
album: Khi Ta Lớn (SpeedUp)
album: Nắng
album: Mùa Phượng Cuối
album: ĐỪNG XIN LỖI
album: Công Chúa BongBong (Flute)
album: Nơi Anh Chẳng Còn Em
album: Nơi Anh Chẳng Còn Em (Lofi Ver.)
album: Đêm 30
album: Chàng Trai Bất Tử
album: Thấu Hiểu
album: Chẳng Để Em Phải Cô Đơn
album: Viên Đá Nhỏ
album: Yên Bình Thương Em
album: Dễ Thương (New Version)
album: Cơ Hội Cuối
album: Cơ Hội Cuối (NVT Remix)
album: Nhắn Gửi Yêu Thương
album: Nhắn Gửi Yêu Thương (NhacPro Remix)
album: Nhẫn Tâm
album: Rumba Giữa Ký Ức
album: Cơ Hội Cuối (Rock Version)
album: Vai Chính Tội Nghiệp

Mode (Major/Minor)
type: PropertyValue
value: 0

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.599

Energy
type: PropertyValue
value: 0.133

Speechiness
type: PropertyValue
value: 0.036

Acousticness
type: PropertyValue
value: 0.986

Instrumentalness
type: PropertyValue
value: 0.006

Liveness
type: PropertyValue
value: 0.377

Valence (Positivity)
type: PropertyValue
value: 0.656

Loudness (dB)
type: PropertyValue
value: -14.523

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Minor

Em Luôn Ở Trong Tâm Trí Anh
type: MusicAlbum
date published: 2022-06-05

Con Tim Mong Manh
type: MusicAlbum
date published: 2022-06-07

Ngôi Nhà Hoa Hồng
type: MusicAlbum
date published: 2022-06-09

Hình Bóng Của Mây
type: MusicAlbum
date published: 2022-06-12
track: Hình Bóng Của Mây
  type: MusicRecording
  duration: PT4M39S
  duration ms: 279000
  explicit: false
  by artist: An Vũ
  in album: Hình Bóng Của Mây
    type: MusicAlbum
    date published: 2022-06-12
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: QZK6M2223070
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T10:40:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdc986d4f016ddd6189a84c1368e7788a2f994f2e42e2fddce61dc77e7249f8d9
  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/QZK6M2223070
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T12:00:27Z
  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 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 0xdc986d4f016ddd6189a84c1368e7788a2f994f2e42e2fddce61dc77e7249f8d9. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZK6M2223070.
    date published: 2026-07-15T12:00:27Z
  audio: Hình Bóng Của Mây
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 79.992
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.613
    additional property: Energy
      type: PropertyValue
      value: 0.234
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.989
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.731
    additional property: Liveness
      type: PropertyValue
      value: 0.118
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.528
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.434
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Con Đường Mưa
type: MusicAlbum
date published: 2022-06-16
track: Con Đường Mưa
  type: MusicRecording
  duration: PT4M40S
  duration ms: 280200
  explicit: false
  by artist: An Vũ
  in album: Con Đường Mưa
    type: MusicAlbum
    date published: 2022-06-16
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: QZK6L2205116
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T23:24:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x38f37d3bbe5e9cdd6805d15a9d6b58ab1f5cf6f9c3139c9daabd7198968873b8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958465
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958465
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6L2205116
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T00:04:42Z
  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 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 0x38f37d3bbe5e9cdd6805d15a9d6b58ab1f5cf6f9c3139c9daabd7198968873b8. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZK6L2205116.
    date published: 2026-07-18T00:04:42Z
  audio: Con Đường Mưa
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 78.052
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.624
    additional property: Energy
      type: PropertyValue
      value: 0.217
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.99
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.747
    additional property: Liveness
      type: PropertyValue
      value: 0.091
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.495
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.174
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Zui Zui Zui
type: MusicAlbum
date published: 2022-08-04

Đêm Trăng Tình Yêu
type: MusicAlbum
date published: 2022-08-13
track: Đêm Trăng Tình Yêu
  type: MusicRecording
  duration: PT5M43S
  duration ms: 343636
  explicit: false
  by artist: An Vũ
  in album: Đêm Trăng Tình Yêu
    type: MusicAlbum
    date published: 2022-08-13
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: QZNWQ2269220
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T17:07:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1b0a21de1ab57febe4f26d55545f3410c5bebf030695e27bec0840f427f0a0a9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2269220
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  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 0x1b0a21de1ab57febe4f26d55545f3410c5bebf030695e27bec0840f427f0a0a9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWQ2269220.
    date published: 2026-07-03T19:59:51Z
  audio: Đêm Trăng Tình Yêu
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 175.723
    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: 0.375
    additional property: Energy
      type: PropertyValue
      value: 0.258
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.965
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.108
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.395
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.667
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Món Quà Vô Giá
type: MusicAlbum
date published: 2022-08-13
track: Món Quà Vô Giá
  type: MusicRecording
  duration: PT5M21S
  duration ms: 321230
  explicit: false
  by artist: An Vũ
  in album: Món Quà Vô Giá
    type: MusicAlbum
    date published: 2022-08-13
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: QZNWQ2269217
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T23:02:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcc6c01a204e38c841cd77466809e5bcf732d4f85afd9f0f35586ac0bb1f76ceb
  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/QZNWQ2269217
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:25:57Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6c01a204e38c841cd77466809e5bcf732d4f85afd9f0f35586ac0bb1f76ceb. 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/QZNWQ2269217.
    date published: 2026-07-06T01:25:57Z
  audio: Món Quà Vô Giá
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 90.116
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.648
    additional property: Energy
      type: PropertyValue
      value: 0.089
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.974
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.006
    additional property: Liveness
      type: PropertyValue
      value: 0.115
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.406
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.484
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Bình Minh Dịu Êm
type: MusicAlbum
date published: 2022-08-13

Nỗi Nhớ Đóng Băng
type: MusicAlbum
date published: 2022-08-13

Vì Anh Ở Đây
type: MusicAlbum
date published: 2022-08-15

Bay Giữa Ngân Hà (Lofi)
type: MusicAlbum
date published: 2022-08-28
track: Bay Giữa Ngân Hà - Lofi
  type: MusicRecording
  duration: PT3M26S
  duration ms: 206084
  explicit: false
  by artist: An Vũ
  in album: Bay Giữa Ngân Hà (Lofi)
    type: MusicAlbum
    date published: 2022-08-28
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: QZN882265697
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-02T03:05:21+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb6a02e01a6868e69ef9d756747eb82b37faab3a7b93da12a4747e2736f4ce598
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956375
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956375
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882265697
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T16:51:38Z
  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 0xb6a02e01a6868e69ef9d756747eb82b37faab3a7b93da12a4747e2736f4ce598. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZN882265697.
    date published: 2026-07-02T16:51:38Z
  audio: Bay Giữa Ngân Hà - Lofi
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.972
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.649
    additional property: Energy
      type: PropertyValue
      value: 0.092
    additional property: Speechiness
      type: PropertyValue
      value: 0.068
    additional property: Acousticness
      type: PropertyValue
      value: 0.952
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.008
    additional property: Liveness
      type: PropertyValue
      value: 0.19
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.181
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.182
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Khi Ta Lớn
type: MusicAlbum
date published: 2022-10-04

Nếu Anh Nói Ra
type: MusicAlbum
date published: 2022-10-10
track: Nếu Anh Nói Ra
  type: MusicRecording
  duration: PT3M22S
  duration ms: 202820
  explicit: false
  by artist: An Vũ
  in album: Nếu Anh Nói Ra
    type: MusicAlbum
    date published: 2022-10-10
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: QZN882297820
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T07:14:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5d6f096e5a51b07f5ef01f122ddd3982f658b42ad98a5358f9a3786322f40039
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958383
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958383
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882297820
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T08:20:01Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6f096e5a51b07f5ef01f122ddd3982f658b42ad98a5358f9a3786322f40039. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882297820.
    date published: 2026-07-17T08:20:01Z
  audio: Nếu Anh Nói Ra
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.794
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.518
    additional property: Energy
      type: PropertyValue
      value: 0.389
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.939
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.255
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.683
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.356
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

Yêu Lại Từ Đầu
type: MusicAlbum
date published: 2022-10-25
track: Yêu Lại Từ Đầu
  type: MusicRecording
  duration: PT3M44S
  duration ms: 224089
  explicit: false
  by artist: An Vũ
  in album: Yêu Lại Từ Đầu
    type: MusicAlbum
    date published: 2022-10-25
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: QZTAT2252764
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T10:57:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x364e343714f38539fc50777a7298587bc10a46b70adeaf146f74db40d61b1211
  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/QZTAT2252764
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T12:00:27Z
  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 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 0x364e343714f38539fc50777a7298587bc10a46b70adeaf146f74db40d61b1211. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZTAT2252764.
    date published: 2026-07-15T12:00:27Z
  audio: Yêu Lại Từ Đầu
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 86.991
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.672
    additional property: Energy
      type: PropertyValue
      value: 0.255
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.924
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.005
    additional property: Liveness
      type: PropertyValue
      value: 0.078
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.427
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.148
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Khi Ta Lớn (Lo-fi)
type: MusicAlbum
date published: 2022-11-06
track: Khi Ta Lớn (Lo-fi)
  type: MusicRecording
  duration: PT3M13S
  duration ms: 193124
  explicit: false
  by artist: An Vũ
  in album: Khi Ta Lớn (Lo-fi)
    type: MusicAlbum
    date published: 2022-11-06
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: QZTAX2294967
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T09:17:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x23576ebe9b1e4506447b391468d45a028387e0d2d740b361a405c6c02f1fb483
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAX2294967
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  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 0x23576ebe9b1e4506447b391468d45a028387e0d2d740b361a405c6c02f1fb483. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTAX2294967.
    date published: 2026-07-03T19:59:51Z
  audio: Khi Ta Lớn (Lo-fi)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.972
    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: 0.742
    additional property: Energy
      type: PropertyValue
      value: 0.284
    additional property: Speechiness
      type: PropertyValue
      value: 0.063
    additional property: Acousticness
      type: PropertyValue
      value: 0.947
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.018
    additional property: Liveness
      type: PropertyValue
      value: 0.098
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.565
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.235
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Vì Anh Lại Nhớ Em
type: MusicAlbum
date published: 2022-12-10
track: Vì Anh Lại Nhớ Em
  type: MusicRecording
  duration: PT3M47S
  duration ms: 227303
  explicit: false
  by artist: An Vũ
  in album: Vì Anh Lại Nhớ Em
    type: MusicAlbum
    date published: 2022-12-10
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: QZWDW2222750
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T23:58:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x753a663785aaee57953532bf620585bae75ffd38410260bf5c798c88f73cd2e4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958340
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958340
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDW2222750
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T00:53:26Z
  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 0x753a663785aaee57953532bf620585bae75ffd38410260bf5c798c88f73cd2e4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZWDW2222750.
    date published: 2026-07-17T00:53:26Z
  audio: Vì Anh Lại Nhớ Em
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 164.786
    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: 0.607
    additional property: Energy
      type: PropertyValue
      value: 0.363
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.897
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.039
    additional property: Liveness
      type: PropertyValue
      value: 0.102
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.468
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.463
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Chạm Khẽ Tim Anh Một Chút Thôi
type: MusicAlbum
date published: 2023-02-05

Anh Đã Có Một Ngày Thật Tệ
type: MusicAlbum
date published: 2023-02-15
track: Anh Đã Có Một Ngày Thật Tệ
  type: MusicRecording
  duration: PT4M45S
  duration ms: 285261
  explicit: false
  by artist: An Vũ
  in album: Anh Đã Có Một Ngày Thật Tệ
    type: MusicAlbum
    date published: 2023-02-15
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: QZDA62385977
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T19:23:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcfde8dda68f1baf0c927c09407c6256977a9a49370a2d3ae1036088e170f468d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA62385977
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xcfde8dda68f1baf0c927c09407c6256977a9a49370a2d3ae1036088e170f468d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA62385977.
    date published: 2026-07-05T01:12:41Z
  audio: Anh Đã Có Một Ngày Thật Tệ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.877
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.63
    additional property: Energy
      type: PropertyValue
      value: 0.08
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.986
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.025
    additional property: Liveness
      type: PropertyValue
      value: 0.091
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.527
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.832
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

(SpeedUp) Chạm Khẽ Tim Anh Một Chút Thôi
type: MusicAlbum
date published: 2023-02-22
track: (SpeedUp) Chạm Khẽ Tim Anh Một Chút Thôi
  type: MusicRecording
  duration: PT3M51S
  duration ms: 231438
  explicit: false
  by artist: An Vũ
  in album: (SpeedUp) Chạm Khẽ Tim Anh Một Chút Thôi
    type: MusicAlbum
    date published: 2023-02-22
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: QZDA82362474
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T19:13:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x61c98955065f74f912d65668ceeb464c80de92342e04c7fd4b72a3a7f69da433
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958931
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958931
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82362474
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T21:15:01Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c98955065f74f912d65668ceeb464c80de92342e04c7fd4b72a3a7f69da433. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82362474.
    date published: 2026-07-20T21:15:01Z
  audio: (SpeedUp) Chạm Khẽ Tim Anh Một Chút Thôi
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 161.263
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.627
    additional property: Energy
      type: PropertyValue
      value: 0.15
    additional property: Speechiness
      type: PropertyValue
      value: 0.062
    additional property: Acousticness
      type: PropertyValue
      value: 0.986
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.726
    additional property: Liveness
      type: PropertyValue
      value: 0.367
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.653
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.334
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Khi Ta Lớn (SpeedUp)
type: MusicAlbum
date published: 2023-03-02

Nắng
type: MusicAlbum
date published: 2023-04-19

Mùa Phượng Cuối
type: MusicAlbum
date published: 2023-05-29

ĐỪNG XIN LỖI
type: MusicAlbum
date published: 2023-08-10

Công Chúa BongBong (Flute)
type: MusicAlbum
date published: 2023-09-29

Nơi Anh Chẳng Còn Em
type: MusicAlbum
date published: 2023-10-14
track: Nơi Anh Chẳng Còn Em
  type: MusicRecording
  duration: PT4M57S
  duration ms: 297461
  explicit: false
  by artist: An Vũ
  in album: Nơi Anh Chẳng Còn Em
    type: MusicAlbum
    date published: 2023-10-14
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: QZYHM2365730
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T17:59:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x22fa55232f3af73291d030ffe4c3f66eb0dca5b92a698dea3254a2f7f3257dee
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956826
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956826
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZYHM2365730
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T19:27:56Z
  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 0x22fa55232f3af73291d030ffe4c3f66eb0dca5b92a698dea3254a2f7f3257dee. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZYHM2365730.
    date published: 2026-07-05T19:27:56Z
  audio: Nơi Anh Chẳng Còn Em
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.936
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.5
    additional property: Energy
      type: PropertyValue
      value: 0.326
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.897
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.196
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.519
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.39
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Nơi Anh Chẳng Còn Em (Lofi Ver.)
type: MusicAlbum
date published: 2023-10-18

Đêm 30
type: MusicAlbum
date published: 2024-01-07
track: Đêm 30
  type: MusicRecording
  duration: PT3M57S
  duration ms: 237374
  explicit: false
  by artist: An Vũ
  in album: Đêm 30
    type: MusicAlbum
    date published: 2024-01-07
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: VNA2F2400046
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T05:01:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa0552ba1b4f24b9e2e4c6cd02ec4c4be94be8ae1f01cce8204fae278f7b9b81c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958245
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958245
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA2F2400046
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T05:50:22Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xa0552ba1b4f24b9e2e4c6cd02ec4c4be94be8ae1f01cce8204fae278f7b9b81c. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA2F2400046.
    date published: 2026-07-16T05:50:22Z
  audio: Đêm 30
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 90.018
    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: 0.658
    additional property: Energy
      type: PropertyValue
      value: 0.339
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.923
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.551
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.362
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Chàng Trai Bất Tử
type: MusicAlbum
date published: 2024-01-11

Thấu Hiểu
type: MusicAlbum
date published: 2024-06-17

Chẳng Để Em Phải Cô Đơn
type: MusicAlbum
date published: 2024-10-12

Viên Đá Nhỏ
type: MusicAlbum
date published: 2024-12-19
track: Viên Đá Nhỏ
  type: MusicRecording
  duration: PT4M30S
  duration ms: 270052
  explicit: false
  by artist: An Vũ
  in album: Viên Đá Nhỏ
    type: MusicAlbum
    date published: 2024-12-19
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: QT3EX2484682
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T00:05:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7aaa081544cc6cc0382d88e5e17b50fdb3c62b5c00796432bc5eba7c1ffc76f3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956422
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956422
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3EX2484682
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T01:01:38Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x7aaa081544cc6cc0382d88e5e17b50fdb3c62b5c00796432bc5eba7c1ffc76f3. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3EX2484682.
    date published: 2026-07-03T01:01:38Z
  audio: Viên Đá Nhỏ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 144.051
    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: 0.591
    additional property: Energy
      type: PropertyValue
      value: 0.088
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.965
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.145
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.587
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.457
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Yên Bình Thương Em
type: MusicAlbum
date published: 2025-02-14

Dễ Thương (New Version)
type: MusicAlbum
date published: 2025-02-20

Cơ Hội Cuối
type: MusicAlbum
date published: 2025-04-25

Cơ Hội Cuối (NVT Remix)
type: MusicAlbum
date published: 2025-06-16

Nhắn Gửi Yêu Thương
type: MusicAlbum
date published: 2025-06-18
track: Nhắn Gửi Yêu Thương
  type: MusicRecording
  duration: PT4M55S
  duration ms: 295200
  explicit: false
  by artist: An Vũ
  in album: Nhắn Gửi Yêu Thương
    type: MusicAlbum
    date published: 2025-06-18
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: VNA2J2500045
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T06:24:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6a85138c3c64163a09309b68bb846feec38a880a860b34c98704fb6077528040
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958256
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958256
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA2J2500045
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T07:22:18Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x6a85138c3c64163a09309b68bb846feec38a880a860b34c98704fb6077528040. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA2J2500045.
    date published: 2026-07-16T07:22:18Z
  audio: Nhắn Gửi Yêu Thương
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.049
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.624
    additional property: Energy
      type: PropertyValue
      value: 0.385
    additional property: Speechiness
      type: PropertyValue
      value: 0.025
    additional property: Acousticness
      type: PropertyValue
      value: 0.767
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.09
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.357
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.856
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Nhắn Gửi Yêu Thương (NhacPro Remix)
type: MusicAlbum
date published: 2025-06-21

Nhẫn Tâm
type: MusicAlbum
date published: 2025-08-01

Rumba Giữa Ký Ức
type: MusicAlbum
date published: 2025-08-23

Cơ Hội Cuối (Rock Version)
type: MusicAlbum
date published: 2025-09-05
track: Cơ Hội Cuối (Rock Version)
  type: MusicRecording
  duration: PT3M16S
  duration ms: 196603
  explicit: false
  by artist: An Vũ
  in album: Cơ Hội Cuối (Rock Version)
    type: MusicAlbum
    date published: 2025-09-05
  genre: vietnamese lo-fi
  genre: v-pop
  isrc code: VNA0M1942169
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T02:03:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x80546c579a0993797342339bfa518b983d77b854a6a6691bcc5fc0403e7cb05e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956474
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956474
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1942169
  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80546c579a0993797342339bfa518b983d77b854a6a6691bcc5fc0403e7cb05e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/VNA0M1942169.
    date published: 2026-07-03T08:56:35Z
  audio: Cơ Hội Cuối (Rock Version)
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Vai Chính Tội Nghiệp
type: MusicAlbum
date published: 2025-09-26
track: Vai Chính Tội Nghiệp
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  duration ms: 291000
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    date published: 2025-09-26
  genre: vietnamese lo-fi
  genre: v-pop
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  additional property: OTSVerifyInstructions
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    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 0x892f9903836ddaeac2be31bcae84f04aa78dadca061088c0c602e8e01701f12d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/VNA0R2502878.
    date published: 2026-07-03T19:59:51Z
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Acousticness
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