Tóc Tiên
type: MusicGroup
genre: vietnamese bolero
genre: vietnam indie
genre: v-pop
popularity: 50
followers: 282379
additional property: CopyrightID
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: OTSProofURL
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additional property: OTSVerificationAPI
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2025331365b2faed7b42b54a494fbbf29ee48343c13267998225a6d9f7a2f5d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d1a4040-692a-428b-9d6c-5e5e52767e0d.json and https://artists.proofprofile.net/proofs/artist/8d1a4040-692a-428b-9d6c-5e5e52767e0d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
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album: Thiếu Nữ
  type: MusicAlbum
  date published: 2009-01-01
album: My Turn
  type: MusicAlbum
  date published: 2011-01-01
album: My Turn
  type: MusicAlbum
  date published: 2011-01-01
album: My Turn
  type: MusicAlbum
  date published: 2011-08-01
album: Mystical Night
  type: MusicAlbum
  date published: 2012-01-01
album: Mystical Night
  type: MusicAlbum
  date published: 2012-01-01
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    in album: Mystical Night
      type: MusicAlbum
      date published: 2012-01-01
    genre: vietnamese bolero
    genre: vietnam indie
    genre: v-pop
    isrc code: QMBZ91913970
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
      type: PropertyValue
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    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      date published: 2026-07-08T08:56:20Z
    audio: Nhịp Đập Tình Yêu
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  track: Mystical Night
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    by artist: Tóc Tiên
    in album: Mystical Night
      type: MusicAlbum
      date published: 2012-01-01
    genre: vietnamese bolero
    genre: vietnam indie
    genre: v-pop
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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: 2026-07-08T03:39:04Z
    audio: Mystical Night
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      additional property: Danceability
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  track: Yêu Không Hối Tiếc
  track: Cho Em Ngày Mới
album: Mysical Night
album: Ngày Mai
album: Vũ Điệu Cồng Chiêng
album: Như Ý - Tóc Tiên
album: Big Girls Don't Cry
album: Big Girl Don't Cry (Touliver Remix)
album: The Beat of Celebration
album: Một Con Đường Hai Ngã Rẽ (From "Taxi)
album: Một Con Đường Hai Ngã Rẽ (From "Taxi, Em Tên Gì")
album: Big Girls Don't Cry (Touliver Remix)
album: I'm in Love
album: Em Không Là Duy Nhất
album: Hôm Nay Tôi Cô Đơn Quá
album: Walk Away (Touliver Remix)
album: Walk Away
album: Hôn
album: Hom Nay Toi Co Don Qua
album: Có Ai Thương Em Như Anh
album: KAHEDA
album: Ngày Tận Thế
album: Xuống Phố Phải Tươi
album: Đâu Cần Một Ai (The Remix)
album: Thì Em Vẫn Thế
album: Big Girls Don't Cry (Thúy Nga)
album: Phút Giây Tuyệt Vời
album: Angel Faded (The Remix)
album: Thế Giới Không Có Anh
album: Không Thể Tìm Lại Bình Yên
album: Ước Mơ Mùa Thu (Ước Hẹn Mùa Thu Original Soundtrack)
album: Ngày Tận Thế (feat. Da LAB, Touliver)
album: Nơi Em Là Bình Yên
album: Ngày Tận Thế (feat. Da LAB, Touliver) [Beat]
album: Việt Nam Tử Tế
album: Em Đã Có Người Mới (feat. Người cũ)
album: Yêu Rồi Yêu Rồi Yêu
album: 1 Cọng Tóc Mai
album: AM I CLEAR?!
album: 906090
album: CONG
album: Nếu Anh Là Em
album: Mash Up: Ánh Sáng Của Đời Tôi / Giọt Sương Trên Mí Mắt (25th Làn Sóng Xanh)
album: Hoa Cúc Dại
album: LK Như Vẫn Còn Đây - Gục Ngã - Angel
track: Gọi Tên Ngày Mới
track: Đón Xuân
track: LK Tung Bay & Cò Lả
track: Tiễn Anh Về Nơi Xa
track: Xuân Về Nhớ Tết Năm Nay
track: Phút Giao Thừa Diệu Êm
track: Cho Em Ngày Mới
track: Em Đẹp Nhất Đêm Nay
track: Ngày Tết Việt Nam
track: Người Tình Ơi Mơ Gì
track: Tình Còn Đam Mê
track: Passion Remains

Danceability
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value: 0.698

Energy
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Speechiness
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value: 0.172

Acousticness
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Instrumentalness
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Liveness
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value: 0.389

Valence (Positivity)
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Loudness (dB)
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Key Name
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Mode Name
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Yêu Không Hối Tiếc
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duration: PT3M56S
duration ms: 236266
explicit: false
by artist: Tóc Tiên
in album: Mystical Night
  type: MusicAlbum
  date published: 2012-01-01
genre: vietnamese bolero
genre: vietnam indie
genre: v-pop
isrc code: QMBZ91913977
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91913977
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → 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 0xd535e0be15a0427b8bc3c109d08ec09298e9d9947bcf03aa4b276b98727ef9bb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91913977.
  date published: 2026-07-08T03:53:27Z
audio: Yêu Không Hối Tiếc
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  additional property: Time Signature
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  additional property: Danceability
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Cho Em Ngày Mới
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duration: PT4M16S
duration ms: 256493
explicit: false
by artist: Tóc Tiên
in album: Mystical Night
  type: MusicAlbum
  date published: 2012-01-01
genre: vietnamese bolero
genre: vietnam indie
genre: v-pop
isrc code: QMBZ91913979
additional property: CopyrightID
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
  type: PropertyValue
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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 0xd175300d2760ed65da0cea7904b2028541e9e12f322b8fe8cb926a6967e42329. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91913979.
  date published: 2026-07-08T03:20:19Z
audio: Cho Em Ngày Mới
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  additional property: Tempo (BPM)
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    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Instrumentalness
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    type: PropertyValue
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Mysical Night
type: MusicAlbum
date published: 2012-09-03

Ngày Mai
type: MusicAlbum
date published: 2015-02-06

Vũ Điệu Cồng Chiêng
type: MusicAlbum
date published: 2015-05-06

Như Ý - Tóc Tiên
type: MusicAlbum
date published: 2016-01-01

Big Girls Don't Cry
type: MusicAlbum
date published: 2016-01-01
track: Big Girls Don't Cry
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    type: MusicAlbum
    date published: 2016-01-01
  genre: vietnamese bolero
  genre: vietnam indie
  genre: v-pop
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: OTSVerificationAPI
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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
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-19T03:54:23Z
  audio: Big Girls Don't Cry
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    additional property: Mode (Major/Minor)
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Big Girl Don't Cry (Touliver Remix)
type: MusicAlbum
date published: 2016-03-02

The Beat of Celebration
type: MusicAlbum
date published: 2016-03-03

Một Con Đường Hai Ngã Rẽ (From "Taxi)
type: MusicAlbum
date published: 2016-03-24

Một Con Đường Hai Ngã Rẽ (From "Taxi, Em Tên Gì")
type: MusicAlbum
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Big Girls Don't Cry (Touliver Remix)
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I'm in Love
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I'm in Love
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Vũ Điệu Cồng Chiêng
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Em Không Là Duy Nhất
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Hôm Nay Tôi Cô Đơn Quá
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Walk Away (Touliver Remix)
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Walk Away (Touliver Remix)
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Em Không Là Duy Nhất
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Walk Away
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Hôn
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Hôn
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Hôm Nay Tôi Cô Đơn Quá
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Hom Nay Toi Co Don Qua
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Có Ai Thương Em Như Anh
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KAHEDA
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Ngày Tận Thế
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Big Girls Don't Cry
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Mystical Night
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My Turn
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KAHEDA
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Xuống Phố Phải Tươi
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Đâu Cần Một Ai (The Remix)
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Big Girls Don't Cry
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Thì Em Vẫn Thế
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KAHEDA
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Big Girls Don't Cry (Thúy Nga)
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Phút Giây Tuyệt Vời
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Angel Faded (The Remix)
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Thế Giới Không Có Anh
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Không Thể Tìm Lại Bình Yên
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Ước Mơ Mùa Thu (Ước Hẹn Mùa Thu Original Soundtrack)
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Walk Away
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Ngày Tận Thế (feat. Da LAB, Touliver)
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Ngày Tận Thế (feat. Da LAB, Touliver)
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Nơi Em Là Bình Yên
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Ngày Tận Thế (feat. Da LAB, Touliver) [Beat]
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Phút Giây Tuyệt Vời
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Việt Nam Tử Tế
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Em Đã Có Người Mới (feat. Người cũ)
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Yêu Rồi Yêu Rồi Yêu
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1 Cọng Tóc Mai
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AM I CLEAR?!
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906090
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CONG
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  genre: vietnam indie
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-06T01:25:57Z
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track: Bồng Bềnh
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-17T12:18:07Z
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track: Khá Khen
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    date published: 2022-11-01
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  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Khá Khen
track: AmIClear? (feat. Trọng Hiếu)

OTSHash
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OTSBitcoinBlock
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value: 958489

OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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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 0xe850a8a0ed375415f1dacc397fba743fd8d69e8150dee7f72a5a8dea5358e7d4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/VNA0M1929013.
date published: 2026-07-18T04:13:26Z

Khá Khen
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additional property: Tempo (BPM)
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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: Instrumentalness
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additional property: Key Name
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AmIClear? (feat. Trọng Hiếu)
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genre: vietnamese bolero
genre: vietnam indie
genre: v-pop
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additional property: CopyrightRegisteredAt
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2351d1fe3b1dc38b9ccf7e0c2226c90d3ced7aad98e02404f994a52bb3dc105f. 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/VNA0M1929014.
  date published: 2026-07-06T01:26:17Z
audio: AmIClear? (feat. Trọng Hiếu)
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Nếu Anh Là Em
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date published: 2022-11-07

Mash Up: Ánh Sáng Của Đời Tôi / Giọt Sương Trên Mí Mắt (25th Làn Sóng Xanh)
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date published: 2022-12-03

Hoa Cúc Dại
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date published: 2022-12-14

LK Như Vẫn Còn Đây - Gục Ngã - Angel
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date published: 2024-01-22

Gọi Tên Ngày Mới
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by artist: Như Quỳnh
by artist: Minh Tuyết
by artist: Tóc Tiên
by artist: Kỳ Phương Uyên
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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
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e86b2260ef5d2075e185d74275b6f8efaf2a46636919a7f7dfc867fc99bd7b. 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/QM7281994554.
  date published: 2026-07-02T03:55:08Z
audio: Gọi Tên Ngày Mới
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  additional property: Danceability
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Đón Xuân
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duration ms: 251133
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in album: Mãi Cho Em Mùa Xuân
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d786116b14f2f6721c10940f29065a75de8706246f2b33f7b489c1dd1dd1a9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMBZ91911692.
  date published: 2026-06-13T15:41:10Z
audio: Đón Xuân
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LK Tung Bay & Cò Lả
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duration: PT7M56S
duration ms: 476293
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by artist: Mai Tiến Dũng
by artist: Quỳnh Vi
by artist: Như Loan
by artist: Tóc Tiên
in album: Tên Sở Khanh
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  date published: 2013-01-01
genre: vietnamese-pop
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-13T07:53:33Z
audio: LK Tung Bay & Cò Lả
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Tiễn Anh Về Nơi Xa
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x873be2fafaac9c5db5b045d016471d3f30f02db7140644a320c3e5acd5927d7f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91913701
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
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 0x873be2fafaac9c5db5b045d016471d3f30f02db7140644a320c3e5acd5927d7f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QMBZ91913701.
  date published: 2026-07-07T18:39:05Z
audio: Tiễn Anh Về Nơi Xa
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.39
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.751
  additional property: Energy
    type: PropertyValue
    value: 0.687
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.01
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.427
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.267
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.23
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Xuân Về Nhớ Tết Năm Nay
type: MusicRecording
duration: PT3M47S
duration ms: 227653
explicit: false
by artist: Hương Thủy
by artist: Tóc Tiên
in album: Giai Điệu Mùa Xuân
  type: MusicAlbum
  date published: 2014-01-01
isrc code: QMBZ91913681
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T12:12:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x20b0df67aefa0f7a6869831802cb38298c285ea0e52a92618d4e9181b3be1d61
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91913681
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → 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 0x20b0df67aefa0f7a6869831802cb38298c285ea0e52a92618d4e9181b3be1d61. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91913681.
  date published: 2026-07-02T03:30:09Z
audio: Xuân Về Nhớ Tết Năm Nay
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.526
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.799
  additional property: Energy
    type: PropertyValue
    value: 0.718
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.094
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.047
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.9
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.872
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Phút Giao Thừa Diệu Êm
type: MusicRecording
duration: PT6M35S
duration ms: 395000
explicit: false
by artist: Trịnh Lam
by artist: Trần Thái Hoà
by artist: Thiên Tôn
by artist: Ngọc Anh
by artist: Quỳnh Vi
by artist: Thanh Hà
by artist: Tóc Tiên
by artist: Đình Bảo
in album: Giai Điệu Mùa Xuân
  type: MusicAlbum
  date published: 2014-01-01
isrc code: QMBZ91913688
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T13:35:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x23e79face14269088e7d1516b94ec2d5d0ed3a7f6390133652d640409b81e346
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91913688
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 → 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 0x23e79face14269088e7d1516b94ec2d5d0ed3a7f6390133652d640409b81e346. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMBZ91913688.
  date published: 2026-07-02T05:09:12Z
audio: Phút Giao Thừa Diệu Êm
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 165.526
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.337
  additional property: Energy
    type: PropertyValue
    value: 0.51
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.409
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.077
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.138
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.239
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cho Em Ngày Mới
type: MusicRecording
duration: PT4M16S
duration ms: 256105
explicit: false
by artist: Tóc Tiên
in album: Người Tình Trăm Năm
  type: MusicAlbum
  date published: 2012-01-01
isrc code: QMBZ91914002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T21:48:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe940bcc4e050dfbe923636c878df347e905c441a6e9f0f9393b36b032f162ef3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91914002
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 → 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 0xe940bcc4e050dfbe923636c878df347e905c441a6e9f0f9393b36b032f162ef3. 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/QMBZ91914002.
  date published: 2026-07-08T03:22:41Z
audio: Cho Em Ngày Mới
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.909
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.735
  additional property: Energy
    type: PropertyValue
    value: 0.777
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.159
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.299
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.529
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.829
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Em Đẹp Nhất Đêm Nay
type: MusicRecording
duration: PT4M20S
duration ms: 260773
explicit: false
by artist: Tóc Tiên
in album: Lắng Nghe Thời Gian
  type: MusicAlbum
  date published: 2013-01-01
isrc code: QMFMG1378444
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:00:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x25ee4055102f313b86c70bd75001a63a3ddecc4def77baebcaa20c32b514fe44
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957820
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957820
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1378444
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-13T07:54:01Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → 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 0x25ee4055102f313b86c70bd75001a63a3ddecc4def77baebcaa20c32b514fe44. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1378444.
  date published: 2026-07-13T07:54:01Z
audio: Em Đẹp Nhất Đêm Nay
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.956
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.541
  additional property: Energy
    type: PropertyValue
    value: 0.606
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.31
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.471
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.735
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ngày Tết Việt Nam
type: MusicRecording
duration: PT4M31S
duration ms: 271026
explicit: false
by artist: Tóc Tiên
by artist: Hương Giang
by artist: Quỳnh Vi
by artist: Nguyệt Anh
by artist: Diem Suong
by artist: Kỳ Phương Uyên
in album: Xuân Với Đời Sống Mới
  type: MusicAlbum
  date published: 2011-01-01
isrc code: QM48F1148601
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T09:24:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x60cb6f0982931da59034cfc80e259857d563b62507d372cef0fa17bef7aee55d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM48F1148601
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x60cb6f0982931da59034cfc80e259857d563b62507d372cef0fa17bef7aee55d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM48F1148601.
  date published: 2026-06-13T15:41:10Z
audio: Ngày Tết Việt Nam
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 158.754
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.553
  additional property: Energy
    type: PropertyValue
    value: 0.841
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.467
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.201
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.593
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.931
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Người Tình Ơi Mơ Gì
type: MusicRecording
duration: PT4M39S
duration ms: 279106
explicit: false
by artist: Tóc Tiên
by artist: Mai Tiến Dũng
in album: Xuân Với Đời Sống Mới
  type: MusicAlbum
  date published: 2011-01-01
isrc code: QM48F1148603
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T17:54:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xedcca4af978d5d78090f17041ec99256885351b032493ee8b9e7160ca5dcecb7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM48F1148603
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → 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 0xedcca4af978d5d78090f17041ec99256885351b032493ee8b9e7160ca5dcecb7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM48F1148603.
  date published: 2026-07-02T03:30:09Z
audio: Người Tình Ơi Mơ Gì
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 146.563
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.738
  additional property: Energy
    type: PropertyValue
    value: 0.708
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.017
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.031
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.697
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.426
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tình Còn Đam Mê
type: MusicRecording
duration: PT4M28S
duration ms: 268173
explicit: false
by artist: Tóc Tiên
by artist: Như Loan
in album: Mơ Một Tình Yêu
  type: MusicAlbum
  date published: 2010-01-01
isrc code: QM48F1047701
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T01:07:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4bce6d2275db44f4247f575e667dac4723b38593e7cf3c5631f3a44776e376ec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956349
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM48F1047701
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
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 0x4bce6d2275db44f4247f575e667dac4723b38593e7cf3c5631f3a44776e376ec. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM48F1047701.
  date published: 2026-07-02T11:34:59Z
audio: Tình Còn Đam Mê
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 153.302
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.57
  additional property: Energy
    type: PropertyValue
    value: 0.674
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.199
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.522
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.084
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Passion Remains
type: MusicRecording
duration: PT4M27S
duration ms: 267693
explicit: false
by artist: Tóc Tiên
by artist: Như Loan
in album: Mơ Một Tình Yêu
  type: MusicAlbum
  date published: 2010-01-01
isrc code: QM48F1047712
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T22:31:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x858cc89a85ae6603681fb06b10d9d51b60b0295e8e9ad7af46309ac02415933f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM48F1047712
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
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 0x858cc89a85ae6603681fb06b10d9d51b60b0295e8e9ad7af46309ac02415933f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM48F1047712.
  date published: 2026-07-08T03:39:04Z
audio: Passion Remains
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 153.262
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.586
  additional property: Energy
    type: PropertyValue
    value: 0.639
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.253
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.487
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.675
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor