Truong Thi Quynh Hanh
type: MusicGroup
genre: traditional music
genre: vietnamese bolero
popularity: 9
followers: 627
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa320a3e9407aeab94b5edcb6d58373488c3b891f3f07359d5123ef52a34f62e. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97e64800-e18e-4617-ac98-9bd4e269607e.json and https://artists.proofprofile.net/proofs/artist/97e64800-e18e-4617-ac98-9bd4e269607e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xfa320a3e9407aeab94b5edcb6d58373488c3b891f3f07359d5123ef52a34f62e","name":"Truong Thi Quynh Hanh","registered_at":"2026-06-17T18:43:00Z","symbol":"NIM1484898","token_address":"0xec5fe709e2dc2f9793a2e93a2274923b65e488dc","type":"artist","uuid":"97e64800-e18e-4617-ac98-9bd4e269607e"}
album: Vietnam: Popular Vietnamese Music
  type: MusicAlbum
  date published: 2000
  track: Binh ban va'n
    type: MusicRecording
    duration: PT3M10S
    duration ms: 190133
    explicit: false
    by artist: Truong Thi Quynh Hanh
    in album: Vietnam: Popular Vietnamese Music
      type: MusicAlbum
      date published: 2000
    genre: traditional music
    genre: vietnamese bolero
    isrc code: LUP501300005
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      type: PropertyValue
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → 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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795e58a6f18164176332f1a18363cd5b8583fed3af30ec4526d52e9685e15d91. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/LUP501300005.
      date published: 2026-07-03T19:59:51Z
    audio: Binh ban va'n
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.905
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
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      additional property: Liveness
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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      additional property: Key Name
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        value: Ab
      additional property: Mode Name
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  track: Ly tinh nhu'
    type: MusicRecording
    duration: PT3M31S
    duration ms: 211693
    explicit: false
    by artist: Truong Thi Quynh Hanh
    in album: Vietnam: Popular Vietnamese Music
      type: MusicAlbum
      date published: 2000
    genre: traditional music
    genre: vietnamese bolero
    isrc code: LUP501300006
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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 → 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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204116e43d2d58a0bd938325011c4346e98718342a6c5a01225336bb3139e224. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/LUP501300006.
      date published: 2026-07-13T18:21:04Z
    audio: Ly tinh nhu'
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.99
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.536
      additional property: Energy
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      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.742
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.826
      additional property: Liveness
        type: PropertyValue
        value: 0.328
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Asia : Musical Tour 2010, Best of Traditional Asian Music
album: Asia, Best of World Music
album: Vietnam, Best of Traditional Vietnamese Music

Valence (Positivity)
type: PropertyValue
value: 0.367

Loudness (dB)
type: PropertyValue
value: -15.365

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Major

Asia : Musical Tour 2010, Best of Traditional Asian Music
type: MusicAlbum
date published: 2000-01-01

Asia, Best of World Music
type: MusicAlbum
date published: 2000-01-01

Vietnam, Best of Traditional Vietnamese Music
type: MusicAlbum
date published: 2011-01-01

Vietnam, Best of Traditional Vietnamese Music
type: MusicAlbum
date published: 2011-01-01