Như Mai
type: MusicGroup
genre: bolero
genre: vietnamese bolero
genre: v-pop
popularity: 17
followers: 7749
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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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 → 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 0x15c34459d7438143fb03e1d32e80adb42c91f5d45f26c2ca274843b0ccda3d44. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72c9f7b5-4615-45eb-b067-e666b7f8ef6b.json and https://artists.proofprofile.net/proofs/artist/72c9f7b5-4615-45eb-b067-e666b7f8ef6b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:49:28Z
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album: Gửi Về Anh (Remastered)
  type: MusicAlbum
  date published: 1988-01-01
album: Tinh Han
  type: MusicAlbum
  date published: 1988-04-13
album: Tình Hận
  type: MusicAlbum
  date published: 1988-06-25
album: Tình Hận
  type: MusicAlbum
  date published: 1988-06-25
album: Nắng Thủy Tinh (Remastered)
  type: MusicAlbum
  date published: 1989-01-01
album: Cát Bụi Tình Xa
  type: MusicAlbum
  date published: 1990-01-01
album: Tiếng hát Như Mai đặc biệt 91 (Tuổi Đá Buồn)
  type: MusicAlbum
  date published: 1991-01-01
album: Liên khúc chiều mưa 2
  type: MusicAlbum
  date published: 1991-01-01
  track: LK 2: Chiều một mình qua phố - Áo lụa Hà Đông - Nếu ta đừng quên nhau - Nếu có nhớ đến - Sầu đông - Tình đẹp xót xa - Tình là sợi tơ
    type: MusicRecording
    duration: PT10M49S
    duration ms: 649840
    explicit: false
    by artist: Như Mai
    in album: Liên khúc chiều mưa 2
      type: MusicAlbum
      date published: 1991-01-01
    genre: bolero
    genre: vietnamese bolero
    genre: v-pop
    isrc code: QZGCD1800334
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1800334
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T03:55:30Z
    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 0x761835c88d97eb33e14d71fefaa20e9e696ae4407ca18254c7599edf76301c85. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/QZGCD1800334.
      date published: 2026-07-19T03:55:30Z
    audio: LK 2: Chiều một mình qua phố - Áo lụa Hà Đông - Nếu ta đừng quên nhau - Nếu có nhớ đến - Sầu đông - Tình đẹp xót xa - Tình là sợi tơ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 118.989
      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: 0.766
      additional property: Energy
        type: PropertyValue
        value: 0.425
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.06
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.003
      additional property: Liveness
        type: PropertyValue
        value: 0.082
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.515
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.115
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Như Mai Thánh Ca (Giọt Lệ Trong Lời Kinh)
  type: MusicAlbum
  date published: 1991-01-01
album: Ga Chiều Phố Nhỏ
  type: MusicAlbum
  date published: 1991-01-01
album: 4 Giọng Ca Vàng
  type: MusicAlbum
  date published: 1992-01-01
album: Như Mai Top Hits (Em Yêu Dấu Ơi)
  type: MusicAlbum
  date published: 1992-01-01
album: Như Giọt Sương Khuya
  type: MusicAlbum
  date published: 1992-06-25
  track: Tình Sầu
    type: MusicRecording
    duration: PT4M54S
    duration ms: 294200
    explicit: false
    by artist: Như Mai
    in album: Như Giọt Sương Khuya
      type: MusicAlbum
      date published: 1992-06-25
    genre: bolero
    genre: vietnamese bolero
    genre: v-pop
    isrc code: USJ3V1141802
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T16:42:22Z
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Tình Sầu
album: Tuổi Nào Cho Em
album: Thánh Ca 3 - Đoạn Khúc Tri Ân
album: Chiều Nghe Biển Hát (Mắt Biếc 03)
album: Cơn Mưa SàiGòn
album: Băng Vàng Trịnh Công Sơn
album: Như Mai Thánh Ca 6 (Dâng Mẹ)
album: Xa Anh Kỷ Niệm
album: Trả Hết Cho Người (Mắt Biếc 01)
album: Áo Trắng Tan Trường
album: Như Mai Thánh Ca 3 (Ave Maria)
album: Nhu Giot Suong Khuya
album: Cuối Cùng Cho Một Tình Yêu (1989) [Remastered]
album: Đêm Thấy Ta Là Thác Đổ (1989) [Remastered]
track: Hương tự do

Hương tự do
type: MusicRecording
duration: PT5M19S
duration ms: 319506
explicit: false
by artist: Như Mai
in album: New Wave (Asia 037)
  type: MusicAlbum
  date published: 1992-01-01
isrc code: QZGCD1801427
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGCD1801427
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+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
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additional property: TokenDeploymentConfirmed
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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 0x13169ca2b9385c5face44a506cc2e308def3532e4c80bf8b881d291e3cdca965. 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/QZGCD1801427.
  date published: 2026-07-08T03:53:27Z
audio: Hương tự do
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  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.741
  additional property: Energy
    type: PropertyValue
    value: 0.557
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.432
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.515
  additional property: Liveness
    type: PropertyValue
    value: 0.146
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.771
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.989
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

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 0x37125c0dacde58d0a2e0d568284b380f1fc77a8b59e2ecba330ea07ed5bffada. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USJ3V1141802.
date published: 2026-07-17T16:42:22Z

Tình Sầu
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 56.211
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.163
additional property: Energy
  type: PropertyValue
  value: 0.372
additional property: Speechiness
  type: PropertyValue
  value: 0.034
additional property: Acousticness
  type: PropertyValue
  value: 0.796
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.308
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.079
additional property: Loudness (dB)
  type: PropertyValue
  value: -9.668
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Tuổi Nào Cho Em
type: MusicAlbum
date published: 1992-06-25

Thánh Ca 3 - Đoạn Khúc Tri Ân
type: MusicAlbum
date published: 1992-06-25

Thánh Ca 3 - Đoạn Khúc Tri Ân
type: MusicAlbum
date published: 1992-06-25

Như Giọt Sương Khuya
type: MusicAlbum
date published: 1992-06-25

Chiều Nghe Biển Hát (Mắt Biếc 03)
type: MusicAlbum
date published: 1994-01-01

Cơn Mưa SàiGòn
type: MusicAlbum
date published: 1994-01-01

Băng Vàng Trịnh Công Sơn
type: MusicAlbum
date published: 1994-01-01

Như Mai Thánh Ca 6 (Dâng Mẹ)
type: MusicAlbum
date published: 1994-01-01

Xa Anh Kỷ Niệm
type: MusicAlbum
date published: 1994-01-01

Trả Hết Cho Người (Mắt Biếc 01)
type: MusicAlbum
date published: 1994-01-01

Áo Trắng Tan Trường
type: MusicAlbum
date published: 1994-01-01

Như Mai Thánh Ca 3 (Ave Maria)
type: MusicAlbum
date published: 1994-01-01

Nhu Giot Suong Khuya
type: MusicAlbum
date published: 1996

Cuối Cùng Cho Một Tình Yêu (1989) [Remastered]
type: MusicAlbum
date published: 2024-04-26

Đêm Thấy Ta Là Thác Đổ (1989) [Remastered]
type: MusicAlbum
date published: 2024-04-26