Sơn Tuyền
type: MusicGroup
genre: bolero
genre: vietnamese bolero
genre: v-pop
popularity: 25
followers: 33004
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2faee64d5c39cdf6fe039df0243401ff8725796ecd797ac9b8d080f55df8f9b3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953423
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953423
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fabb5fe5-3e32-4e43-a302-1a963479fa88.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fabb5fe5-3e32-4e43-a302-1a963479fa88.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fabb5fe5-3e32-4e43-a302-1a963479fa88
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T21:20:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2faee64d5c39cdf6fe039df0243401ff8725796ecd797ac9b8d080f55df8f9b3","name":"Sơn Tuyền","registered_at":"2026-06-12T14:17:02Z","symbol":"NIM0322905","token_address":"0x086b039e6eb64d6072dd47b2333ea4b702b13cb7","type":"artist","uuid":"fabb5fe5-3e32-4e43-a302-1a963479fa88"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2faee64d5c39cdf6fe039df0243401ff8725796ecd797ac9b8d080f55df8f9b3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fabb5fe5-3e32-4e43-a302-1a963479fa88.json and https://artists.proofprofile.net/proofs/artist/fabb5fe5-3e32-4e43-a302-1a963479fa88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x2faee64d5c39cdf6fe039df0243401ff8725796ecd797ac9b8d080f55df8f9b3","name":"Sơn Tuyền","registered_at":"2026-06-12T14:17:02Z","symbol":"NIM0322905","token_address":"0x086b039e6eb64d6072dd47b2333ea4b702b13cb7","type":"artist","uuid":"fabb5fe5-3e32-4e43-a302-1a963479fa88"}
album: Anh
  type: MusicAlbum
  date published: 1987-01-01
album: Tình
  type: MusicAlbum
  date published: 1987-01-01
album: Một Lần Dang Dở
  type: MusicAlbum
  date published: 1988-01-01
album: Dạ Vũ
  type: MusicAlbum
  date published: 1989-01-01
album: Cơn Mưa Phùn
  type: MusicAlbum
  date published: 1990-01-01
album: Hoa Sứ Nhà Nàng
  type: MusicAlbum
  date published: 1990-01-01
album: Người Yêu Cô Đơn
  type: MusicAlbum
  date published: 1990-01-01
  track: Nhớ Nhau Hoài
    type: MusicRecording
    duration: PT5M27S
    duration ms: 327600
    explicit: false
    by artist: Sơn Tuyền
    in album: Người Yêu Cô Đơn
      type: MusicAlbum
      date published: 1990-01-01
    genre: bolero
    genre: vietnamese bolero
    genre: v-pop
    isrc code: USJ3V1159262
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T23:44:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2e115e3a17c4c97e029831a631382ff6ad24e40aa140eb86aa482a4db313f504
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958468
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958468
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V1159262
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T00:27:51Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e115e3a17c4c97e029831a631382ff6ad24e40aa140eb86aa482a4db313f504. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V1159262.
      date published: 2026-07-18T00:27:51Z
    audio: Nhớ Nhau Hoài
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 79.693
      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: 0.594
      additional property: Energy
        type: PropertyValue
        value: 0.419
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.52
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.081
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.342
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.962
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Qua Cơn Mê
    type: MusicRecording
    duration: PT5M35S
    duration ms: 335200
    explicit: false
    by artist: Sơn Tuyền
    in album: Người Yêu Cô Đơn
      type: MusicAlbum
      date published: 1990-01-01
    genre: bolero
    genre: vietnamese bolero
    genre: v-pop
    isrc code: USJ3V1159264
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T15:36:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2bf26104e84cbc3190acb303cc271cf0ddfb8bc69d44d067fab207836d7b0d01
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958444
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958444
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V1159264
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:12:23Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf26104e84cbc3190acb303cc271cf0ddfb8bc69d44d067fab207836d7b0d01. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USJ3V1159264.
      date published: 2026-07-17T19:12:23Z
    audio: Qua Cơn Mê
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 78.756
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Ai Cho Tôi Tình Yêu
album: Liên Khúc Cho Người Tình
album: Thành Phố Buồn
album: Tình Bơ Vơ
album: Cali Em Yêu
album: Loan Mắt Nhung
album: Hai Mùa Mưa
album: Thân Phận
album: Người Yêu Dấu
album: Dân Ca 3 Miền
album: Than Phan
album: Mai Lỡ Mình Xa Nhau
album: Nhật Ký Đời Tôi
album: Căn Nhà Ngoại Ô
album: Sơn Tuyền 6 - Người Yêu Cô Đơn
album: Nguoi Yeu Co Don
album: Về Thăm Mẹ & Quê Hương
album: Sơn Tuyền - Lính xa nhà
album: Lính xa nhà
album: Tình Trong Mắt Em
album: Tình Là Gì
album: Con Gái Bây Giờ
album: Tình Ca Chọn Lọc
album: Nghẹn Ngào
album: Người Không Cô Đơn
album: Đừng nói xa nhau
album: Mống Chuồn
album: Tiếng Hát Chim Đa Đa
album: Sơn Tuyền Nhạc Tuyển
album: Phố Vắng Em Rồi
album: Chuyện Tình
album: Thương Nhớ
album: Sa Mạc Tình Yêu
album: Duyên Tình
album: Người Tình
album: Nỗi Buồn
album: Áo Em Chưa Mặc Một Lần
album: Đôi Mắt Người Xưa
album: Chủ Đề Dòng Đời
album: Lòng Mẹ
album: Cô Thắm Về Làng
album: Vùng Lá Me Bay
album: Điệp Khúc Mùa Xuân
album: Tâm Sự Ngày Xuân
track: Thói đời
track: Nỗi lòng mùa xuân
track: Mùa sao sáng

Thói đời
type: MusicRecording
duration: PT3M57S
duration ms: 237733
explicit: false
by artist: Tuấn Vũ
by artist: Sơn Tuyền
in album: Trên Bốn Vùng Chiến Thuật
  type: MusicAlbum
  date published: 2014-01-01
isrc code: QZGCD1800549
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:40:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e9555b109aebd9a7c5a3ded4c5a6a9ed87a840f44fd9d594b08b60aea0d550b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1800549
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9555b109aebd9a7c5a3ded4c5a6a9ed87a840f44fd9d594b08b60aea0d550b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZGCD1800549.
  date published: 2026-07-08T08:56:20Z
audio: Thói đời
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.489
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.388
  additional property: Energy
    type: PropertyValue
    value: 0.49
  additional property: Speechiness
    type: PropertyValue
    value: 0.027
  additional property: Acousticness
    type: PropertyValue
    value: 0.81
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.124
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.218
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.905
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Nỗi lòng mùa xuân
type: MusicRecording
duration: PT4M38S
duration ms: 278893
explicit: false
by artist: Sơn Tuyền
in album: Mùa Xuân Yêu Em
  type: MusicAlbum
  date published: 1992-01-01
isrc code: QZGCD1801499
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T20:18:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e8d0c250de98e57b80ee954ef92bda9cf0b182f6713f6bfd3039cbfa42fbe82
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1801499
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8d0c250de98e57b80ee954ef92bda9cf0b182f6713f6bfd3039cbfa42fbe82. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1801499.
  date published: 2026-07-08T03:22:41Z
audio: Nỗi lòng mùa xuân
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 178.399
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.404
  additional property: Energy
    type: PropertyValue
    value: 0.299
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.35
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.166
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.866
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mùa sao sáng
type: MusicRecording
duration: PT6M1S
duration ms: 361573
explicit: false
by artist: Sơn Tuyền
in album: Cho Kỷ Niệm Mùa Đông (Asia 069)
  type: MusicAlbum
  date published: 1994-01-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7ca3f46dfb3129501771ab57eb3b03e6e2629a02931b5444bafb129343210b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZGCD1801706.
  date published: 2026-07-31T02:19:15Z
audio: Mùa sao sáng
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 163.531
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.449
  additional property: Energy
    type: PropertyValue
    value: 0.358
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.643
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.292
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.154
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: QZGCD1801706
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960334
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T02:19:15+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1801706
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.596

Energy
type: PropertyValue
value: 0.417

Speechiness
type: PropertyValue
value: 0.026

Acousticness
type: PropertyValue
value: 0.602

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.086

Valence (Positivity)
type: PropertyValue
value: 0.553

Loudness (dB)
type: PropertyValue
value: -10.951

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

Ai Cho Tôi Tình Yêu
type: MusicRecording
duration: PT4M57S
duration ms: 297933
explicit: false
by artist: Sơn Tuyền
in album: Người Yêu Cô Đơn
  type: MusicAlbum
  date published: 1990-01-01
genre: bolero
genre: vietnamese bolero
genre: v-pop
isrc code: USJ3V1159266
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T15:08:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x75dcabb8c0197e30dcbed78b1bb4b391960be3a44e935f4a9dba88b186713c74
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V1159266
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dcabb8c0197e30dcbed78b1bb4b391960be3a44e935f4a9dba88b186713c74. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V1159266.
  date published: 2026-07-05T01:12:41Z
audio: Ai Cho Tôi Tình Yêu
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 77.325
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.569
  additional property: Energy
    type: PropertyValue
    value: 0.379
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.728
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.149
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.249
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.782
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Liên Khúc Cho Người Tình
type: MusicAlbum
date published: 1991-01-01

Thành Phố Buồn
type: MusicAlbum
date published: 1991-01-01
track: Thành Phố Buồn
  type: MusicRecording
  duration: PT6M0S
  duration ms: 360266
  explicit: false
  by artist: Sơn Tuyền
  in album: Thành Phố Buồn
    type: MusicAlbum
    date published: 1991-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: QM9SX2101238
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T03:23:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x95350c5c73d1760ffd2acffff862a7aca8c976595d08c15c986efaad0a2bfad3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956476
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956476
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM9SX2101238
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T09:04:44Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95350c5c73d1760ffd2acffff862a7aca8c976595d08c15c986efaad0a2bfad3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM9SX2101238.
    date published: 2026-07-03T09:04:44Z
  audio: Thành Phố Buồn
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 97.781
    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: 0.6
    additional property: Energy
      type: PropertyValue
      value: 0.423
    additional property: Speechiness
      type: PropertyValue
      value: 0.025
    additional property: Acousticness
      type: PropertyValue
      value: 0.787
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.053
    additional property: Liveness
      type: PropertyValue
      value: 0.141
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.362
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.306
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Đôi Mắt Người Xưa
  type: MusicRecording
  duration: PT5M24S
  duration ms: 324800
  explicit: false
  by artist: Sơn Tuyền
  in album: Thành Phố Buồn
    type: MusicAlbum
    date published: 1991-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: QM9SX2101247
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T10:13:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x69b870f6dc91a0dfc4e7037f4b2fd64c48493acfb64e391a2ae16bf98938b085
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958146
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958146
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM9SX2101247
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T10:33:22Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b870f6dc91a0dfc4e7037f4b2fd64c48493acfb64e391a2ae16bf98938b085. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM9SX2101247.
    date published: 2026-07-15T10:33:22Z
  audio: Đôi Mắt Người Xưa
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 181.761
    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: 0.358
    additional property: Energy
      type: PropertyValue
      value: 0.392
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.74
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.187
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.314
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.193
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Tình Bơ Vơ
type: MusicAlbum
date published: 1992-01-01

Cali Em Yêu
type: MusicAlbum
date published: 1992-01-01

Loan Mắt Nhung
type: MusicAlbum
date published: 1992-01-01

Hai Mùa Mưa
type: MusicAlbum
date published: 1992-01-01

Thân Phận
type: MusicAlbum
date published: 1993-01-01

Người Yêu Dấu
type: MusicAlbum
date published: 1993-01-01

Dân Ca 3 Miền
type: MusicAlbum
date published: 1993-01-01

Than Phan
type: MusicAlbum
date published: 1993-04-23

Mai Lỡ Mình Xa Nhau
type: MusicAlbum
date published: 1994-01-01

Nhật Ký Đời Tôi
type: MusicAlbum
date published: 1994-01-01

Căn Nhà Ngoại Ô
type: MusicAlbum
date published: 1994-01-01

Sơn Tuyền 6 - Người Yêu Cô Đơn
type: MusicAlbum
date published: 1995-06-25

Nguoi Yeu Co Don
type: MusicAlbum
date published: 1996

Về Thăm Mẹ & Quê Hương
type: MusicAlbum
date published: 1996-01-01

Sơn Tuyền - Lính xa nhà
type: MusicAlbum
date published: 1996-04-01
track: Sầu lẻ bóng
  type: MusicRecording
  duration: PT4M47S
  duration ms: 287466
  explicit: false
  by artist: Sơn Tuyền
  in album: Sơn Tuyền - Lính xa nhà
    type: MusicAlbum
    date published: 1996-04-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: VNA0F1713240
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T20:05:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5b082c9c90d59409893b4d93d49fb99d328ea0ad1d51b3d7e064d32a03dfa7fd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1713240
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b082c9c90d59409893b4d93d49fb99d328ea0ad1d51b3d7e064d32a03dfa7fd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1713240.
    date published: 2026-07-05T01:12:41Z
  audio: Sầu lẻ bóng
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 169.478
    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: 0.389
    additional property: Energy
      type: PropertyValue
      value: 0.367
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.822
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.277
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.45
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.448
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Lính xa nhà
type: MusicAlbum
date published: 1996-04-01

Thân Phận
type: MusicAlbum
date published: 1996-06-25

Tình Trong Mắt Em
type: MusicAlbum
date published: 1997-01-01

Tình Là Gì
type: MusicAlbum
date published: 1997-01-01

Tình Là Gì
type: MusicAlbum
date published: 1997-01-01
track: Tát Nước Đầu Đình
  type: MusicRecording
  duration: PT5M2S
  duration ms: 302880
  explicit: false
  by artist: Sơn Tuyền
  in album: Tình Là Gì
    type: MusicAlbum
    date published: 1997-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: QM9SX2101350
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T06:48:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x74da30092be442e04f4c0b2d38b95c663d4dde884a0e7de5b70aa004bea21160
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958980
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958980
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM9SX2101350
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T07:04:12Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74da30092be442e04f4c0b2d38b95c663d4dde884a0e7de5b70aa004bea21160. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QM9SX2101350.
    date published: 2026-07-21T07:04:12Z
  audio: Tát Nước Đầu Đình
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 95.142
    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: 0.682
    additional property: Energy
      type: PropertyValue
      value: 0.668
    additional property: Speechiness
      type: PropertyValue
      value: 0.023
    additional property: Acousticness
      type: PropertyValue
      value: 0.245
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.112
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.845
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.611
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Con Gái Bây Giờ
type: MusicAlbum
date published: 1998-01-01

Tình Ca Chọn Lọc
type: MusicAlbum
date published: 1998-01-01

Nghẹn Ngào
type: MusicAlbum
date published: 1998-06-25

Người Không Cô Đơn
type: MusicAlbum
date published: 1999-01-01

Đừng nói xa nhau
type: MusicAlbum
date published: 2000-01-01
track: Đà Lạt hoàng hôn
  type: MusicRecording
  duration: PT4M24S
  duration ms: 264393
  explicit: false
  by artist: Sơn Tuyền
  in album: Đừng nói xa nhau
    type: MusicAlbum
    date published: 2000-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: VNA0F1766697
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T20:07:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x249e11796b271f595d5effc9e37fccd2602f808789e01d39f2174c6866ab924b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958203
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958203
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F1766697
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T23:08:07Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249e11796b271f595d5effc9e37fccd2602f808789e01d39f2174c6866ab924b. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:08:07Z), 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/VNA0F1766697.
    date published: 2026-07-15T23:08:07Z
  audio: Đà Lạt hoàng hôn
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 97.558
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.448
    additional property: Energy
      type: PropertyValue
      value: 0.409
    additional property: Speechiness
      type: PropertyValue
      value: 0.026
    additional property: Acousticness
      type: PropertyValue
      value: 0.749
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.113
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.193
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.561
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Mống Chuồn
type: MusicAlbum
date published: 2000-01-01

Tiếng Hát Chim Đa Đa
type: MusicAlbum
date published: 2001-01-01

Sơn Tuyền Nhạc Tuyển
type: MusicAlbum
date published: 2002-01-01
track: Mưa Nửa Đêm
  type: MusicRecording
  duration: PT4M38S
  duration ms: 278333
  explicit: false
  by artist: Sơn Tuyền
  in album: Sơn Tuyền Nhạc Tuyển
    type: MusicAlbum
    date published: 2002-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: QM9SX2202534
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T14:53:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8518ae2af563de846811721788a2121b4333b6def94af43400f78cd6b92b3f27
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959024
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959024
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM9SX2202534
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T15:31:18Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8518ae2af563de846811721788a2121b4333b6def94af43400f78cd6b92b3f27. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM9SX2202534.
    date published: 2026-07-21T15:31:18Z
  audio: Mưa Nửa Đêm
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 180.77
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.387
    additional property: Energy
      type: PropertyValue
      value: 0.469
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.669
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.34
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.221
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.496
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Trinh Nữ Tên Thi
  type: MusicRecording
  duration: PT3M36S
  duration ms: 216893
  explicit: false
  by artist: Sơn Tuyền
  in album: Sơn Tuyền Nhạc Tuyển
    type: MusicAlbum
    date published: 2002-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: QM9SX2202535
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T13:06:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x814223efaa9c320e082212beea92c5f6653c8a9409bb7e43b6f4f3955485d11b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM9SX2202535
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814223efaa9c320e082212beea92c5f6653c8a9409bb7e43b6f4f3955485d11b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM9SX2202535.
    date published: 2026-07-05T01:12:41Z
  audio: Trinh Nữ Tên Thi
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 122.51
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.736
    additional property: Energy
      type: PropertyValue
      value: 0.566
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.687
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.113
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.388
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.36
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Hai Mùa Mưa
  type: MusicRecording
  duration: PT5M51S
  duration ms: 351186
  explicit: false
  by artist: Sơn Tuyền
  in album: Sơn Tuyền Nhạc Tuyển
    type: MusicAlbum
    date published: 2002-01-01
  genre: bolero
  genre: vietnamese bolero
  genre: v-pop
  isrc code: QM9SX2202541
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T01:35:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe20dc00b6499a9b4cfe490241a9943e29461a8e9859cff2d30b314a731db668f
  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: Hai Mùa Mưa

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958951

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958951

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM9SX2202541

OTSTimestamp
type: PropertyValue
value: 2026-07-21T04:37:46Z

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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20dc00b6499a9b4cfe490241a9943e29461a8e9859cff2d30b314a731db668f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:37:46Z), 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/QM9SX2202541.
date published: 2026-07-21T04:37:46Z

Hai Mùa Mưa
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 179.032
additional property: Musical Key
  type: PropertyValue
  value: 6
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.346
additional property: Energy
  type: PropertyValue
  value: 0.464
additional property: Speechiness
  type: PropertyValue
  value: 0.042
additional property: Acousticness
  type: PropertyValue
  value: 0.747
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.348
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.307
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.057
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Minor

Phố Vắng Em Rồi
type: MusicAlbum
date published: 2003-01-01

Căn Nhà Ngoại Ô
type: MusicAlbum
date published: 2017-02-27

Chuyện Tình
type: MusicAlbum
date published: 2017-02-27

Thương Nhớ
type: MusicAlbum
date published: 2017-04-04

Thương Nhớ
type: MusicAlbum
date published: 2017-04-04

Sa Mạc Tình Yêu
type: MusicAlbum
date published: 2017-04-04

Sa Mạc Tình Yêu
type: MusicAlbum
date published: 2017-04-04

Duyên Tình
type: MusicAlbum
date published: 2017-05-22

Người Tình
type: MusicAlbum
date published: 2017-05-22

Nỗi Buồn
type: MusicAlbum
date published: 2017-05-22

Duyên Tình
type: MusicAlbum
date published: 2017-05-22

Người Tình
type: MusicAlbum
date published: 2017-05-22

Áo Em Chưa Mặc Một Lần
type: MusicAlbum
date published: 2017-08-23

Đôi Mắt Người Xưa
type: MusicAlbum
date published: 2017-09-25

Đôi Mắt Người Xưa
type: MusicAlbum
date published: 2017-09-25

Chủ Đề Dòng Đời
type: MusicAlbum
date published: 2017-09-30

Nhật Ký Đời Tôi
type: MusicAlbum
date published: 2017-09-30

Lòng Mẹ
type: MusicAlbum
date published: 2017-09-30

Cô Thắm Về Làng
type: MusicAlbum
date published: 2018-08-28

Vùng Lá Me Bay
type: MusicAlbum
date published: 2023-03-17

Điệp Khúc Mùa Xuân
type: MusicAlbum
date published: 2023-11-23

Tâm Sự Ngày Xuân
type: MusicAlbum
date published: 2023-11-28