Tuấn Ngọc
type: MusicGroup
genre: bolero
genre: vietnamese bolero
genre: v-pop
popularity: 37
followers: 113396
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2de9147b854d6e3fd0f9471e70f1430b7e5291649cee7042124473bff4443096
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953408
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953408
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b20313ec-45ca-4dc7-ade0-e5875d550a8d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b20313ec-45ca-4dc7-ade0-e5875d550a8d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b20313ec-45ca-4dc7-ade0-e5875d550a8d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:28:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2de9147b854d6e3fd0f9471e70f1430b7e5291649cee7042124473bff4443096","name":"Tuấn Ngọc","registered_at":"2026-06-12T07:34:34Z","symbol":"NIM0229714","token_address":"0x5a75d8693682791a349eb245efb8395ad5484bfc","type":"artist","uuid":"b20313ec-45ca-4dc7-ade0-e5875d550a8d"}
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 → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de9147b854d6e3fd0f9471e70f1430b7e5291649cee7042124473bff4443096. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b20313ec-45ca-4dc7-ade0-e5875d550a8d.json and https://artists.proofprofile.net/proofs/artist/b20313ec-45ca-4dc7-ade0-e5875d550a8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x2de9147b854d6e3fd0f9471e70f1430b7e5291649cee7042124473bff4443096","name":"Tuấn Ngọc","registered_at":"2026-06-12T07:34:34Z","symbol":"NIM0229714","token_address":"0x5a75d8693682791a349eb245efb8395ad5484bfc","type":"artist","uuid":"b20313ec-45ca-4dc7-ade0-e5875d550a8d"}
album: Lá Đổ Muôn Chiều (Remastered)
  type: MusicAlbum
  date published: 1982-01-01
album: Mộng Dưới Hoa (Remastered)
  type: MusicAlbum
  date published: 1982-01-01
album: Chiều Nay Không Có Em (Remastered)
  type: MusicAlbum
  date published: 1982-01-01
album: Dư Âm (Remastered)
  type: MusicAlbum
  date published: 1982-01-01
album: Hoài Cảm (Remastered)
  type: MusicAlbum
  date published: 1982-01-01
album: Thuở Ban Đầu (Remastered)
  type: MusicAlbum
  date published: 1982-01-01
  track: Dư Âm - Remastered
    type: MusicRecording
    duration: PT4M30S
    duration ms: 270518
    explicit: false
    by artist: Tuấn Ngọc
    in album: Thuở Ban Đầu (Remastered)
      type: MusicAlbum
      date published: 1982-01-01
    genre: bolero
    genre: vietnamese bolero
    genre: v-pop
    isrc code: QM9SX2401381
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T03:43:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5e7c70024af627aa6fc032763b65aa98746ef10fcdde19444385960b5cb45a03
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM9SX2401381
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7c70024af627aa6fc032763b65aa98746ef10fcdde19444385960b5cb45a03. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM9SX2401381.
      date published: 2026-07-05T10:01:46Z
    audio: Dư Âm - Remastered
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 69.3
      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: 0.399
      additional property: Energy
        type: PropertyValue
        value: 0.394
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.763
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.073
      additional property: Liveness
        type: PropertyValue
        value: 0.127
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.391
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.547
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tình Khúc Buồn (Remastered)
  type: MusicAlbum
  date published: 1982-01-01
album: Chuyển Bến (Remastered)
  type: MusicAlbum
  date published: 1982-01-01
album: Rồi Mai Tôi Đưa Em (Remastered)
  type: MusicAlbum
  date published: 1982-01-01
album: Thuở Ban Đầu (Remastered)
  type: MusicAlbum
  date published: 1982-01-01
album: Nếu Xa Nhau (Remastered)
  type: MusicAlbum
  date published: 1982-01-01
album: Hạ Trắng (Remastered)
  type: MusicAlbum
  date published: 1982-01-01
album: Trở Về Bến Mơ (1982) [Remastered]
  type: MusicAlbum
  date published: 1982-01-01
album: Hát Cho Kỷ Niệm
  type: MusicAlbum
  date published: 1985
album: Rồi Mai Tôi Đưa Em
  type: MusicAlbum
  date published: 1989-06-25
album: Tâm Sự Gửi Về Đâu
  type: MusicAlbum
  date published: 1991
album: Tâm Sự Gửi Về Đâu
  type: MusicAlbum
  date published: 1991-01-01
  track: Chiều Một Mình Qua Phố
    type: MusicRecording
    duration: PT5M29S
    duration ms: 329466
    explicit: false
    by artist: Tuấn Ngọc
    in album: Tâm Sự Gửi Về Đâu
      type: MusicAlbum
      date published: 1991-01-01
    genre: bolero
    genre: vietnamese bolero
    genre: v-pop
    isrc code: SGUM72100161
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T18:14:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x69ab9fe00ce6a924955bf36dfcf6075ba1af327de17549e4a182b632a6f31e60
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Chiều Một Mình Qua Phố
album: Lá Đổ Muôn Chiều
album: Hải Âu 113
album: Bản Tình Cuối
album: Tuấn Ngọc - Những Tình Khúc Yêu Cầu
album: Những Tình Khúc Yêu Cầu
album: Hoài Cảm
album: Giọt Lệ Cho Ngàn Sau
album: Đêm Thấy Ta Là Thác Đổ
album: La Do Muon Chieu
album: Phoi Pha
album: Tinh Da Vut Bay
album: Mot Thoang Huong Xua
album: Tuấn Ngọc - Ơn em
album: Tiếng Dương Cầm
album: Một Thoáng Hương Xưa
album: Tứ quý - Tình khúc bất tử CD4
album: Tứ quý - Tình khúc bất tử CD1
album: Tứ quý - Tình khúc bất tử CD3
album: Dù Nghìn Năm Qua Đi
album: Tứ quý - Tình khúc bất tử CD2
album: Tuấn Ngọc - Nhờ em giữ lấy tình ta
album: Lối Về
album: The Best Of Tuấn Ngọc
album: Em Đi Như Chiều Đi
album: Nua Hon Thuong Dau
album: Tam Su Goi Ve Dau
album: Va Toi Mai Yeu Em
album: Hat Cho Ky Niem
album: Tháng 7 Chưa Mưa - Tuấn Ngọc Đặc Biệt
album: Nho Em Giu Lay Tinh Ta
album: Cứ Tưởng Còn Trong Tay - Bạc Tình
album: Thang 7 Chua Mua
album: Hãy Yêu Nhau Đi 2
album: Dem Thay Ta La Thac Do
album: Tuấn Ngọc: Riêng Một Góc Trời (Live in Vietnam)
album: Sóng Tình 2
album: Nỗi Lòng Người Đi (The Best of Tuấn Ngọc)
album: Chiều Nội Trú Bâng Khuâng
album: Nhờ Em Giữ Lấy Tình Ta
album: Những Tâm Hồn Khát Vọng
album: Riêng Một Góc Trời
album: Va Toi Mai Yeu Em 1
album: Rieng Mot Goc Troi (LP Record)
album: CÓ LẼ VÌ
album: Có Lời Nào Ta Lỡ Quên

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957895

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/957895

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SGUM72100161

OTSTimestamp
type: PropertyValue
value: 2026-07-13T18:41:29Z

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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ab9fe00ce6a924955bf36dfcf6075ba1af327de17549e4a182b632a6f31e60. Chain 2 (Bitcoin): anchored in block 957895 (2026-07-13T18:41:29Z), 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/SGUM72100161.
date published: 2026-07-13T18:41:29Z

Chiều Một Mình Qua Phố
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 183.617
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.264
additional property: Energy
  type: PropertyValue
  value: 0.187
additional property: Speechiness
  type: PropertyValue
  value: 0.032
additional property: Acousticness
  type: PropertyValue
  value: 0.936
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.118
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.149
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.248
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Minor

Tâm Sự Gửi Về Đâu
type: MusicAlbum
date published: 1991-06-14

Lá Đổ Muôn Chiều
type: MusicAlbum
date published: 1992-06-25

Lá Đổ Muôn Chiều
type: MusicAlbum
date published: 1992-06-25
track: Dư Âm
  type: MusicRecording
  duration: PT4M31S
  duration ms: 271426
  explicit: false
  by artist: Tuấn Ngọc
  in album: Lá Đổ Muôn Chiều
    type: MusicAlbum
    date published: 1992-06-25
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: USJ3V1107078
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T01:35:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9c66f2c71c5bf209967b5de76ca8cb9f345038c6d1775ec8be753444e5b110af
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956474
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956474
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V1107078
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T08:56:35Z
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c66f2c71c5bf209967b5de76ca8cb9f345038c6d1775ec8be753444e5b110af. 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/USJ3V1107078.
    date published: 2026-07-03T08:56:35Z
  audio: Dư Âm
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 70.322
    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: 0.39
    additional property: Energy
      type: PropertyValue
      value: 0.321
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.566
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.067
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.409
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.271
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Hải Âu 113
type: MusicAlbum
date published: 1993-01-01
track: Bài không tên trở lại cuối cùng
  type: MusicRecording
  duration: PT4M31S
  duration ms: 271520
  explicit: false
  by artist: Tuấn Ngọc
  in album: Hải Âu 113
    type: MusicAlbum
    date published: 1993-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: VNA0F1700919
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T17:23:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7d62eccd8e65813ff80b7ff121eddd9487d3b07874ce4bc90b0ffa756324fba0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956560
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956560
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1700919
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T23:28:02Z
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d62eccd8e65813ff80b7ff121eddd9487d3b07874ce4bc90b0ffa756324fba0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/VNA0F1700919.
    date published: 2026-07-03T23:28:02Z
  audio: Bài không tên trở lại cuối cùng
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.105
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.341
    additional property: Energy
      type: PropertyValue
      value: 0.445
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.616
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.255
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.19
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.095
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Bản Tình Cuối
type: MusicAlbum
date published: 1993-01-01
track: Bản tình cuối
  type: MusicRecording
  duration: PT4M52S
  duration ms: 292830
  explicit: false
  by artist: Tuấn Ngọc
  in album: Bản Tình Cuối
    type: MusicAlbum
    date published: 1993-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: VNA0F1782333
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T21:19:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x61b82fc8197453a789de80bb203affbc0f907fdcc2a3de336c1c1f7a98bec82d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1782333
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b82fc8197453a789de80bb203affbc0f907fdcc2a3de336c1c1f7a98bec82d. 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/VNA0F1782333.
    date published: 2026-07-04T10:04:33Z
  audio: Bản tình cuối
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 88.217
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.273
    additional property: Energy
      type: PropertyValue
      value: 0.308
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.473
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.241
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.191
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.746
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Tuấn Ngọc - Những Tình Khúc Yêu Cầu
type: MusicAlbum
date published: 1993-01-01

Những Tình Khúc Yêu Cầu
type: MusicAlbum
date published: 1993-06-25

Hoài Cảm
type: MusicAlbum
date published: 1994-01-01

Giọt Lệ Cho Ngàn Sau
type: MusicAlbum
date published: 1994-03-16
track: Mắt Lệ Cho Người
  type: MusicRecording
  duration: PT5M58S
  duration ms: 358773
  explicit: false
  by artist: Tuấn Ngọc
  in album: Giọt Lệ Cho Ngàn Sau
    type: MusicAlbum
    date published: 1994-03-16
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: SGUM72100096
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T23:22:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x254ed9cc3e6270eb43dcde98f54a45f0e04251a8d4c54d19a025d3cb2532061b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956857
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956857
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SGUM72100096
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:26:17Z
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254ed9cc3e6270eb43dcde98f54a45f0e04251a8d4c54d19a025d3cb2532061b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SGUM72100096.
    date published: 2026-07-06T01:26:17Z
  audio: Mắt Lệ Cho Người
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 125.489
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.342
    additional property: Energy
      type: PropertyValue
      value: 0.26
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.602
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.124
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.115
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.919
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Giọt Lệ Cho Ngàn Sau
type: MusicAlbum
date published: 1994-03-16

Đêm Thấy Ta Là Thác Đổ
type: MusicAlbum
date published: 1995-01-01

La Do Muon Chieu
type: MusicAlbum
date published: 1995-08-19

Phoi Pha
type: MusicAlbum
date published: 1997

Tinh Da Vut Bay
type: MusicAlbum
date published: 1997

Mot Thoang Huong Xua
type: MusicAlbum
date published: 1998-05-22

Tuấn Ngọc - Ơn em
type: MusicAlbum
date published: 1999-01-01
track: Ru ta ngậm ngùi
  type: MusicRecording
  duration: PT4M41S
  duration ms: 281466
  explicit: false
  by artist: Tuấn Ngọc
  in album: Tuấn Ngọc - Ơn em
    type: MusicAlbum
    date published: 1999-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: VNA0F1735482
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T03:35:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x352b2f0dc5bc51bb5c512ec1aca4b701b4e5a35c23e1411c7cb96f32b8ebc14c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1735482
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352b2f0dc5bc51bb5c512ec1aca4b701b4e5a35c23e1411c7cb96f32b8ebc14c. 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/VNA0F1735482.
    date published: 2026-07-04T10:04:33Z
  audio: Ru ta ngậm ngùi
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 112.526
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.269
    additional property: Energy
      type: PropertyValue
      value: 0.213
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.765
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.102
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.083
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.99
    additional property: Key Name
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      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Tiếng Dương Cầm
type: MusicAlbum
date published: 1999-06-25
track: Lạc Mất Mùa Xuân
  type: MusicRecording
  duration: PT3M24S
  duration ms: 204093
  explicit: false
  by artist: Tuấn Ngọc
  in album: Tiếng Dương Cầm
    type: MusicAlbum
    date published: 1999-06-25
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: USJ3V1087093
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T13:16:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0c1f9948645701e1e045967d24af278a55abf288b6ca45eed8f080cdf08ac4da
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958373
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/958373
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V1087093
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T06:09:33Z
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1f9948645701e1e045967d24af278a55abf288b6ca45eed8f080cdf08ac4da. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USJ3V1087093.
    date published: 2026-07-17T06:09:33Z
  audio: Lạc Mất Mùa Xuân
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.862
    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: 0.397
    additional property: Energy
      type: PropertyValue
      value: 0.579
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.429
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.215
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.566
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.032
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Tiếng Dương Cầm
type: MusicAlbum
date published: 1999-06-25

Một Thoáng Hương Xưa
type: MusicAlbum
date published: 1999-06-25

Tứ quý - Tình khúc bất tử CD4
type: MusicAlbum
date published: 2000-01-01

Tứ quý - Tình khúc bất tử CD1
type: MusicAlbum
date published: 2000-01-01

Tứ quý - Tình khúc bất tử CD3
type: MusicAlbum
date published: 2000-01-01

Dù Nghìn Năm Qua Đi
type: MusicAlbum
date published: 2000-01-01

Tứ quý - Tình khúc bất tử CD2
type: MusicAlbum
date published: 2000-01-01

Tuấn Ngọc - Nhờ em giữ lấy tình ta
type: MusicAlbum
date published: 2000-01-15
track: Từ giọng hát em
  type: MusicRecording
  duration: PT5M1S
  duration ms: 301786
  explicit: false
  by artist: Tuấn Ngọc
  in album: Tuấn Ngọc - Nhờ em giữ lấy tình ta
    type: MusicAlbum
    date published: 2000-01-15
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: VNA0F1735523
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T07:17:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1a7252fff8845b98209983061b3196775d3380878582e5a3590bf8117f9059ef
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958388
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/958388
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1735523
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T09:14:21Z
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7252fff8845b98209983061b3196775d3380878582e5a3590bf8117f9059ef. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/VNA0F1735523.
    date published: 2026-07-17T09:14:21Z
  audio: Từ giọng hát em
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.015
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.215
    additional property: Energy
      type: PropertyValue
      value: 0.319
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.674
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.142
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.069
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.752
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Thương nhau ngày mưa
  type: MusicRecording
  duration: PT5M59S
  duration ms: 359560
  explicit: false
  by artist: Tuấn Ngọc
  in album: Tuấn Ngọc - Nhờ em giữ lấy tình ta
    type: MusicAlbum
    date published: 2000-01-15
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: VNA0F1735525
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-13T18:50:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9a2fc782ad1ef885a006192cfbdafb6e237a0155827334255400dc702f4b3fd7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957899
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957899
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1735525
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T19:36:39Z
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2fc782ad1ef885a006192cfbdafb6e237a0155827334255400dc702f4b3fd7. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/VNA0F1735525.
    date published: 2026-07-13T19:36:39Z
  audio: Thương nhau ngày mưa
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 66.174
    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: 0.272
    additional property: Energy
      type: PropertyValue
      value: 0.584
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.371
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.101
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.199
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.162
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Tôi với trời bơ vơ
  type: MusicRecording
  duration: PT5M15S
  duration ms: 315666
  explicit: false
  by artist: Tuấn Ngọc
  in album: Tuấn Ngọc - Nhờ em giữ lấy tình ta
    type: MusicAlbum
    date published: 2000-01-15
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: VNA0F1735526
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T07:01:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb823864fb4fe1158c12441e43566b69c4bdad48398feba84df0fe0e1e501ae49
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Tôi với trời bơ vơ
track: Tà áo xanh
track: Nhờ em giữ lấy tình ta

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956772

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/956772

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1735526

OTSTimestamp
type: PropertyValue
value: 2026-07-05T10:01:46Z

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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb823864fb4fe1158c12441e43566b69c4bdad48398feba84df0fe0e1e501ae49. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/VNA0F1735526.
date published: 2026-07-05T10:01:46Z

Tôi với trời bơ vơ
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 127.028
additional property: Musical Key
  type: PropertyValue
  value: 8
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.426
additional property: Energy
  type: PropertyValue
  value: 0.294
additional property: Speechiness
  type: PropertyValue
  value: 0.034
additional property: Acousticness
  type: PropertyValue
  value: 0.261
additional property: Instrumentalness
  type: PropertyValue
  value: 0.002
additional property: Liveness
  type: PropertyValue
  value: 0.091
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.104
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.177
additional property: Key Name
  type: PropertyValue
  value: Ab
additional property: Mode Name
  type: PropertyValue
  value: Major

Tà áo xanh
type: MusicRecording
duration: PT5M0S
duration ms: 300413
explicit: false
by artist: Tuấn Ngọc
in album: Tuấn Ngọc - Nhờ em giữ lấy tình ta
  type: MusicAlbum
  date published: 2000-01-15
genre: bolero
genre: vietnamese bolero
genre: v-pop
isrc code: VNA0F1735528
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T21:22:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb300bb375ddcc5f4d42d7347a044bbcda0fac389311535a1db3ec0592f3920b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956634
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956634
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1735528
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb300bb375ddcc5f4d42d7347a044bbcda0fac389311535a1db3ec0592f3920b1. 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/VNA0F1735528.
  date published: 2026-07-04T10:04:33Z
audio: Tà áo xanh
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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
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.306
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.854
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
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Nhờ em giữ lấy tình ta
type: MusicRecording
duration: PT3M11S
duration ms: 191546
explicit: false
by artist: Tuấn Ngọc
in album: Tuấn Ngọc - Nhờ em giữ lấy tình ta
  type: MusicAlbum
  date published: 2000-01-15
genre: bolero
genre: vietnamese bolero
genre: v-pop
isrc code: VNA0F1735529
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-07-18T16:59:24+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/958587
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1735529
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T17:06:26Z
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed4db3c41163044e634f703f53f16475c653497c2ebd84f2775f03e6b15e7af. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/VNA0F1735529.
  date published: 2026-07-18T17:06:26Z
audio: Nhờ em giữ lấy tình ta
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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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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Lối Về
type: MusicAlbum
date published: 2000-06-25

The Best Of Tuấn Ngọc
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date published: 2002-01-01
track: Tưởng niệm
  type: MusicRecording
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  in album: The Best Of Tuấn Ngọc
    type: MusicAlbum
    date published: 2002-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: QZGCD1802810
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  additional property: CopyrightStatus
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/958054
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1802810
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-14T19:33:24Z
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1273bf2c1e106d70844a0aa0a8d3af155de3f93c64bf6888b9d4c4a3909e8874. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZGCD1802810.
    date published: 2026-07-14T19:33:24Z
  audio: Tưởng niệm
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
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    additional property: Key Name
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track: Ai về sông tương
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    type: MusicAlbum
    date published: 2002-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
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  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
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    value: https://blockstream.info/api/block/956422
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1802811
  additional property: OTSTimestamp
    type: PropertyValue
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  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee43290295fa66b39fcd2f9b546f058101b942dcccedd184597e23042c13f31. 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/QZGCD1802811.
    date published: 2026-07-03T01:01:38Z
  audio: Ai về sông tương
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.483
    additional property: Energy
      type: PropertyValue
      value: 0.608
    additional property: Speechiness
      type: PropertyValue
      value: 0.066
    additional property: Acousticness
      type: PropertyValue
      value: 0.104
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.286
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.405
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.227
    additional property: Key Name
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track: Thu quyến rũ
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  explicit: false
  by artist: Tuấn Ngọc
  in album: The Best Of Tuấn Ngọc
    type: MusicAlbum
    date published: 2002-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: QZGCD1802802
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x6363e0329c3384f75f8f7a7a07427c9a7f4e864372eaea1566c471bf3bf76e23
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Thu quyến rũ
track: Bài không tên số 4
track: Không tên tiếp nối 28 - Anh cám ơn em
track: Hãy sống cho tuổi trẻ
track: Giữ đời cho nhau

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 958329

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/958329

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1802802

OTSTimestamp
type: PropertyValue
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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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6363e0329c3384f75f8f7a7a07427c9a7f4e864372eaea1566c471bf3bf76e23. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZGCD1802802.
date published: 2026-07-16T21:48:38Z

Thu quyến rũ
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 86.977
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: 0.194
additional property: Energy
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  value: 0.333
additional property: Speechiness
  type: PropertyValue
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
  type: PropertyValue
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additional property: Key Name
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additional property: Mode Name
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Bài không tên số 4
type: MusicRecording
duration: PT4M13S
duration ms: 253226
explicit: false
by artist: Tuấn Ngọc
in album: The Best Of Tuấn Ngọc
  type: MusicAlbum
  date published: 2002-01-01
genre: bolero
genre: vietnamese bolero
genre: v-pop
isrc code: QZGCD1802812
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T11:24:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/958544
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1802812
additional property: OTSTimestamp
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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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045557cc1bf118c6e357ecac41118370cb04753dcd09866577c658e91b2b4f25. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1802812.
  date published: 2026-07-18T12:14:37Z
audio: Bài không tên số 4
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Không tên tiếp nối 28 - Anh cám ơn em
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duration: PT5M23S
duration ms: 323213
explicit: false
by artist: Tuấn Ngọc
in album: The Best Of Tuấn Ngọc
  type: MusicAlbum
  date published: 2002-01-01
genre: bolero
genre: vietnamese bolero
genre: v-pop
isrc code: QZGCD1802814
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683e38dafd129e5444699c6bc50f609c951a36e8c35b1a2d6fa31036cd20384b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1802814.
  date published: 2026-07-05T10:59:37Z
audio: Không tên tiếp nối 28 - Anh cám ơn em
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Hãy sống cho tuổi trẻ
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duration: PT3M44S
duration ms: 224960
explicit: false
by artist: Tuấn Ngọc
in album: The Best Of Tuấn Ngọc
  type: MusicAlbum
  date published: 2002-01-01
genre: bolero
genre: vietnamese bolero
genre: v-pop
isrc code: QZGCD1802805
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463b7b4fabde5d9a658ce947fc0676a04fc7de125b2564ba5ecd7964e9399e68. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZGCD1802805.
  date published: 2026-07-13T19:36:39Z
audio: Hãy sống cho tuổi trẻ
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Giữ đời cho nhau
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duration ms: 271066
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by artist: Tuấn Ngọc
in album: The Best Of Tuấn Ngọc
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genre: bolero
genre: vietnamese bolero
genre: v-pop
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additional property: CopyrightStatus
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216bf29eec23cfbd1dc956546bb582fedad6bc28d627324857cd4dee64da40e8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZGCD1802817.
  date published: 2026-07-06T01:26:17Z
audio: Giữ đời cho nhau
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Valence (Positivity)
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Em Đi Như Chiều Đi
type: MusicAlbum
date published: 2002-01-01

Nua Hon Thuong Dau
type: MusicAlbum
date published: 2003

Tam Su Goi Ve Dau
type: MusicAlbum
date published: 2003

Va Toi Mai Yeu Em
type: MusicAlbum
date published: 2003

Hat Cho Ky Niem
type: MusicAlbum
date published: 2003

Tháng 7 Chưa Mưa - Tuấn Ngọc Đặc Biệt
type: MusicAlbum
date published: 2003-01-01

Nho Em Giu Lay Tinh Ta
type: MusicAlbum
date published: 2004

Cứ Tưởng Còn Trong Tay - Bạc Tình
type: MusicAlbum
date published: 2004-11-02

Thang 7 Chua Mua
type: MusicAlbum
date published: 2005

Hãy Yêu Nhau Đi 2
type: MusicAlbum
date published: 2005-01-01

Dem Thay Ta La Thac Do
type: MusicAlbum
date published: 2006

Tuấn Ngọc: Riêng Một Góc Trời (Live in Vietnam)
type: MusicAlbum
date published: 2008-01-01

Sóng Tình 2
type: MusicAlbum
date published: 2010-12-09

Nỗi Lòng Người Đi (The Best of Tuấn Ngọc)
type: MusicAlbum
date published: 2017-01-01

Hãy Yêu Nhau Đi 2
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date published: 2018-08-08

Hãy Yêu Nhau Đi 2
type: MusicAlbum
date published: 2018-08-08

Chiều Nội Trú Bâng Khuâng
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date published: 2018-08-09

Chiều Nội Trú Bâng Khuâng
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date published: 2018-08-09
track: Bâng Khuâng Chiều Nội Trú
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  genre: v-pop
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  additional property: OTSVerificationAPI
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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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-17T19:47:19Z
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Speechiness
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Nhờ Em Giữ Lấy Tình Ta
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date published: 2018-08-10
track: Khúc Thụy Du
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4eef61dae81fa9920a3a54df16810fa31b6feb9c1c0add2d79c65f65cc337d. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1814983.
    date published: 2026-07-13T02:37:37Z
  audio: Khúc Thụy Du
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    additional property: Mode (Major/Minor)
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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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    additional property: Loudness (dB)
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Nhờ Em Giữ Lấy Tình Ta
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track: Khúc Thụy Du
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    date published: 2018-08-10
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  genre: v-pop
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-18T21:29:37Z
  audio: Khúc Thụy Du
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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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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Những Tâm Hồn Khát Vọng
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Riêng Một Góc Trời
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date published: 2019-01-01

Riêng Một Góc Trời
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date published: 2019-01-01
track: Dưới Giàn Hoa Cũ
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  duration: PT4M58S
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  explicit: false
  by artist: Tuấn Ngọc
  in album: Riêng Một Góc Trời
    type: MusicAlbum
    date published: 2019-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-04T11:19:20Z
  audio: Dưới Giàn Hoa Cũ
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Va Toi Mai Yeu Em 1
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date published: 2019-02-08

Riêng Một Góc Trời
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date published: 2019-07-25

Rieng Mot Goc Troi (LP Record)
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date published: 2019-07-25

CÓ LẼ VÌ
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-05T01:12:41Z
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      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.879
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.096
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.174
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.571
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
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Có Lời Nào Ta Lỡ Quên
type: MusicAlbum
date published: 2020-07-24

Du Nghin Nam Qua Di
type: MusicAlbum
date published: 2021-04-10

Dốc Mơ (Liveshow Danh Ca Việt Nam 2017)
type: MusicAlbum
date published: 2022-09-06

Khúc Thuỵ Du (Liveshow Danh Ca Việt Nam 2017)
type: MusicAlbum
date published: 2022-09-06

Giao Lộ Thời Gian
type: MusicAlbum
date published: 2023-05-17

Giao Lộ Thời Gian
type: MusicAlbum
date published: 2023-05-17

Lời Cuối
type: MusicAlbum
date published: 2023-10-20

Giọt Lệ Cho Ngàn Sau
type: MusicAlbum
date published: 2023-10-20

Bây Giờ Tháng Mấy
type: MusicAlbum
date published: 2023-10-20

Thương
type: MusicAlbum
date published: 2024-01-22

Như Một Lời Chia Tay (1995) [Remastered]
type: MusicAlbum
date published: 2024-04-26

Nhớ Mùa Thu Hà Nội (1995) [Remastered]
type: MusicAlbum
date published: 2024-04-26

Em Còn Nhớ Hay Em Đã Quên (1995) [Remastered]
type: MusicAlbum
date published: 2024-04-26

Thành Phố Sương
type: MusicAlbum
date published: 2024-09-26

Phố Mùa Đông
type: MusicAlbum
date published: 2024-09-26

Giao Lộ Thời Gian - Tập 22
type: MusicAlbum
date published: 2025-05-26
track: Vì Đó Là Em
  type: MusicRecording
  duration: PT4M58S
  duration ms: 298822
  explicit: false
  by artist: Tuấn Ngọc
  in album: Giao Lộ Thời Gian - Tập 22
    type: MusicAlbum
    date published: 2025-05-26
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: VNA2B2501087
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T05:15:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc3df519e56db0bb66ddf55f92ee4ca87260e539ef134350d57a63142f4fd3b96
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/958245
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA2B2501087
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T08:10:41Z
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3df519e56db0bb66ddf55f92ee4ca87260e539ef134350d57a63142f4fd3b96. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:10:41Z), 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/VNA2B2501087.
    date published: 2026-07-16T08:10:41Z
  audio: Vì Đó Là Em
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
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    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.493
    additional property: Energy
      type: PropertyValue
      value: 0.22
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.901
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.201
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.213
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.55
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Thành Phố Sương
  type: MusicRecording
  duration: PT2M58S
  duration ms: 178793
  explicit: false
  by artist: Tuấn Ngọc
  in album: Giao Lộ Thời Gian - Tập 22
    type: MusicAlbum
    date published: 2025-05-26
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: VNA2B2501088
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T22:46:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x28b22b0b54af8265899bc18d05aef8067f3527acdb2c6bc42fb1c2099bebf8b7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/958340
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA2B2501088
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b22b0b54af8265899bc18d05aef8067f3527acdb2c6bc42fb1c2099bebf8b7. 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/VNA2B2501088.
    date published: 2026-07-17T00:53:26Z
  audio: Thành Phố Sương
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.565
    additional property: Energy
      type: PropertyValue
      value: 0.285
    additional property: Speechiness
      type: PropertyValue
      value: 0.056
    additional property: Acousticness
      type: PropertyValue
      value: 0.907
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.453
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.36
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.808
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
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Như đã dấu yêu
type: MusicRecording
duration: PT3M53S
duration ms: 233407
explicit: false
by artist: Tuấn Ngọc
in album: Đêm nhạc Love Songs
  type: MusicAlbum
  date published: 2018-01-01
isrc code: VNA0F1782060
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T06:47:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeefa5f3f2cb051fc856ad2ad5669062a57f5a73a1e2d57c9327018f86080120f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956891
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956891
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1782060
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:16:32Z
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefa5f3f2cb051fc856ad2ad5669062a57f5a73a1e2d57c9327018f86080120f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/VNA0F1782060.
  date published: 2026-07-06T07:16:32Z
audio: Như đã dấu yêu
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.62
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.323
  additional property: Energy
    type: PropertyValue
    value: 0.3
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.672
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.626
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.437
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.061
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Liên Khúc Mùa Đông Của Anh, Trên đỉnh mùa đông
type: MusicRecording
duration: PT5M15S
duration ms: 315797
explicit: false
by artist: Duy Quang
by artist: Tuấn Ngọc
by artist: Trung Hành
in album: Đêm Sài Gòn 5
  type: MusicAlbum
  date published: 1995-01-01
isrc code: QZGCD1807533
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T08:24:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x515c75b2a7b0d96eb622cdfc28c469d654eaac3f5399a482729a5bcdd283b9e5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957041
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957041
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1807533
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T13:25:45Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515c75b2a7b0d96eb622cdfc28c469d654eaac3f5399a482729a5bcdd283b9e5. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1807533.
  date published: 2026-07-07T13:25:45Z
audio: Liên Khúc Mùa Đông Của Anh, Trên đỉnh mùa đông
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.018
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.612
  additional property: Energy
    type: PropertyValue
    value: 0.306
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.585
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.352
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.423
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.893
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Như Đã Dấu Yêu
type: MusicRecording
duration: PT3M49S
duration ms: 229653
explicit: false
by artist: Tuấn Ngọc
in album: Như Đã Dấu Yêu - Tình Ca Đức Huy
  type: MusicAlbum
  date published: 2016-01-01
isrc code: QM48F1657001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T07:11:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaaf27cdcec65c3bc882f7d735f40b8e43ff372b668a2906c3a321b5efdfe3c9c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM48F1657001
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf27cdcec65c3bc882f7d735f40b8e43ff372b668a2906c3a321b5efdfe3c9c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM48F1657001.
  date published: 2026-07-02T03:55:08Z
audio: Như Đã Dấu Yêu
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.668
  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: 0.273
  additional property: Energy
    type: PropertyValue
    value: 0.489
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.191
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.145
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.194
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.995
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Ru Giấc Tàn Phai
type: MusicRecording
duration: PT5M21S
duration ms: 321133
explicit: false
by artist: Tuấn Ngọc
in album: Ru Giấc Tàn Phai
  type: MusicAlbum
  date published: 2024-06-13
isrc code: QM48F2465101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T03:18:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc50d79fadf231eef57d2ca955a00a7fe66e39b24e7cea82954782b0138a033e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956891
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956891
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM48F2465101
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:16:32Z
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50d79fadf231eef57d2ca955a00a7fe66e39b24e7cea82954782b0138a033e8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM48F2465101.
  date published: 2026-07-06T07:16:32Z
audio: Ru Giấc Tàn Phai
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.951
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.411
  additional property: Energy
    type: PropertyValue
    value: 0.355
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.919
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.051
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.146
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.321
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Bây Giờ Tháng Mấy
type: MusicRecording
duration: PT4M53S
duration ms: 293426
explicit: false
by artist: Thái Hiền
by artist: Tuấn Ngọc
in album: Trên Ngọn Tình Sầu
  type: MusicAlbum
  date published: 2023-01-01
isrc code: QM48F2364504
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:25:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ecb636602226b13d14d72d0438aa2be42f33bbbe900fb78aa7361c0c048dc6b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957075
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957075
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM48F2364504
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:50:38Z
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
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  date published: 2026-07-07T18:50:38Z
audio: Bây Giờ Tháng Mấy
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Con Đường Tình Ta Đi
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by artist: Tuấn Ngọc
in album: Mặt Trời Và Hoa
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  date published: 2022-06-01
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Con Đường Tình Ta Đi
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