Khánh Ngọc
type: MusicGroup
genre: vietnamese bolero
genre: vinahouse
genre: v-pop
popularity: 23
followers: 337
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3413b234648444464c71aaf70d9dd8eafa8087a34cc8578e673d130905097069
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/780e3082-535f-425d-b726-5285e6b58805.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/780e3082-535f-425d-b726-5285e6b58805.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/780e3082-535f-425d-b726-5285e6b58805
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3413b234648444464c71aaf70d9dd8eafa8087a34cc8578e673d130905097069","name":"Khánh Ngọc","registered_at":"2026-06-12T01:27:09Z","symbol":"NIM0156529","token_address":"0x7563cc5f55e62c0730edd96ce1647307cc988ff1","type":"artist","uuid":"780e3082-535f-425d-b726-5285e6b58805"}
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 0x3413b234648444464c71aaf70d9dd8eafa8087a34cc8578e673d130905097069. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/780e3082-535f-425d-b726-5285e6b58805.json and https://artists.proofprofile.net/proofs/artist/780e3082-535f-425d-b726-5285e6b58805.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x3413b234648444464c71aaf70d9dd8eafa8087a34cc8578e673d130905097069","name":"Khánh Ngọc","registered_at":"2026-06-12T01:27:09Z","symbol":"NIM0156529","token_address":"0x7563cc5f55e62c0730edd96ce1647307cc988ff1","type":"artist","uuid":"780e3082-535f-425d-b726-5285e6b58805"}
album: Vầng Trăng Khóc (feat. Nhật Tinh Anh)
  type: MusicAlbum
  date published: 2018-08-06
  track: Vầng Trăng Khóc (feat. Nhật Tinh Anh)
    type: MusicRecording
    duration: PT4M56S
    duration ms: 296359
    explicit: false
    by artist: Khánh Ngọc
    in album: Vầng Trăng Khóc (feat. Nhật Tinh Anh)
      type: MusicAlbum
      date published: 2018-08-06
    genre: vietnamese bolero
    genre: vinahouse
    genre: v-pop
    isrc code: VNA0M1819433
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T10:55:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x68e18f07f7c51fc52da5e5f904de06ae64916ad54b413bf33999732ebc4fff70
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958152
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958152
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1819433
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T15:00:11Z
    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 0x68e18f07f7c51fc52da5e5f904de06ae64916ad54b413bf33999732ebc4fff70. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T15:00:11Z), 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/VNA0M1819433.
      date published: 2026-07-15T15:00:11Z
    audio: Vầng Trăng Khóc (feat. Nhật Tinh Anh)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.046
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.565
      additional property: Energy
        type: PropertyValue
        value: 0.466
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.302
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.326
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.33
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.913
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Vầng Trăng Khóc (feat. Nhật Tinh Anh)
  type: MusicAlbum
  date published: 2018-08-17
album: Chia Tay Liệu Có Dễ
  type: MusicAlbum
  date published: 2023-02-16
album: Lời Tỏ Tình Dễ Thương
  type: MusicAlbum
  date published: 2023-11-23
album: Hát Đi Em Mùa Xuân
  type: MusicAlbum
  date published: 2023-11-23
album: Cả Nhà Thương Nhau
  type: MusicAlbum
  date published: 2025-02-08
track: Chào Xuân

Chào Xuân
type: MusicRecording
duration: PT4M50S
duration ms: 290640
explicit: false
by artist: Minh Thư
by artist: Khánh Ngọc
by artist: Lê Trung Cương
by artist: Minh Trung
in album: Gala Nhạc Việt 5: Xuân Đất Việt, Tết Quê Hương
  type: MusicAlbum
  date published: 2015-01-26
isrc code: FRX282113065
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:31:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb74ccc252726b91609a0639bcc7c4b15debd22ee05888d1d28fc51c6a5fa29cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282113065
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+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 0xb74ccc252726b91609a0639bcc7c4b15debd22ee05888d1d28fc51c6a5fa29cc. 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/FRX282113065.
  date published: 2026-07-08T03:20:19Z
audio: Chào Xuân
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.807
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.667
  additional property: Energy
    type: PropertyValue
    value: 0.724
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.356
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.626
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.025
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor