Nguyễn Thanh Duy
type: MusicGroup
genre: vinahouse
popularity: 3
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8708f1886fb0790484ac07f7fee917d3ec9be59f6a5bc9c68d6944f1c1c0f0d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c37b22b4-3aed-42f2-9e88-e66ce353bee0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c37b22b4-3aed-42f2-9e88-e66ce353bee0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c37b22b4-3aed-42f2-9e88-e66ce353bee0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd8708f1886fb0790484ac07f7fee917d3ec9be59f6a5bc9c68d6944f1c1c0f0d","name":"Nguyễn Thanh Duy","registered_at":"2026-06-20T19:59:16Z","symbol":"NIM1701059","token_address":"0x3cf2b44905343473a22ab013a5f36b5601f93f19","type":"artist","uuid":"c37b22b4-3aed-42f2-9e88-e66ce353bee0"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8708f1886fb0790484ac07f7fee917d3ec9be59f6a5bc9c68d6944f1c1c0f0d. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c37b22b4-3aed-42f2-9e88-e66ce353bee0.json and https://artists.proofprofile.net/proofs/artist/c37b22b4-3aed-42f2-9e88-e66ce353bee0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0xd8708f1886fb0790484ac07f7fee917d3ec9be59f6a5bc9c68d6944f1c1c0f0d","name":"Nguyễn Thanh Duy","registered_at":"2026-06-20T19:59:16Z","symbol":"NIM1701059","token_address":"0x3cf2b44905343473a22ab013a5f36b5601f93f19","type":"artist","uuid":"c37b22b4-3aed-42f2-9e88-e66ce353bee0"}
album: Chăm Hoa
  type: MusicAlbum
  date published: 2025-03-19
album: Nếu Ví Anh Như
  type: MusicAlbum
  date published: 2025-03-19
album: Hôm Nay Tôi Buồn
  type: MusicAlbum
  date published: 2025-03-20
album: Cô Gái Thanh Khiết
  type: MusicAlbum
  date published: 2025-03-20
  track: Cô Gái Thanh Khiết
    type: MusicRecording
    duration: PT4M54S
    duration ms: 294127
    explicit: false
    by artist: Nguyễn Thanh Duy
    in album: Cô Gái Thanh Khiết
      type: MusicAlbum
      date published: 2025-03-20
    genre: vinahouse
    isrc code: QZK6N2541683
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T07:49:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf39b12091dcfc804077d0945cad7b02ac20f8fa50e8ccd901f654cc87f360ea6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958846
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958846
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6N2541683
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T08:14:15Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39b12091dcfc804077d0945cad7b02ac20f8fa50e8ccd901f654cc87f360ea6. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZK6N2541683.
      date published: 2026-07-20T08:14:15Z
    audio: Cô Gái Thanh Khiết
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.019
      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: 0.69
      additional property: Energy
        type: PropertyValue
        value: 0.827
      additional property: Speechiness
        type: PropertyValue
        value: 0.056
      additional property: Acousticness
        type: PropertyValue
        value: 0.02
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.31
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.718
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.134
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Vuon Hoa Con Ca
  type: MusicAlbum
  date published: 2025-03-20
album: Hôm Qua Tôi Đã Khóc
  type: MusicAlbum
  date published: 2025-03-20
  track: Hôm Qua Tôi Đã Khóc
    type: MusicRecording
    duration: PT1M4S
    duration ms: 64040
    explicit: false
    by artist: Nguyễn Thanh Duy
    in album: Hôm Qua Tôi Đã Khóc
      type: MusicAlbum
      date published: 2025-03-20
    genre: vinahouse
    isrc code: QZK6N2545692
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T14:36:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8156f3d9b2af0211dbfd9bd8e1d33fce5d75e5664381435773cbaade008dc608
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959144
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959144
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6N2545692
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T15:38:35Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8156f3d9b2af0211dbfd9bd8e1d33fce5d75e5664381435773cbaade008dc608. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZK6N2545692.
      date published: 2026-07-22T15:38:35Z
    audio: Hôm Qua Tôi Đã Khóc
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.008
      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
        value: 0.713
      additional property: Energy
        type: PropertyValue
        value: 0.949
      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

Speechiness
type: PropertyValue
value: 0.077

Acousticness
type: PropertyValue
value: 0.025

Instrumentalness
type: PropertyValue
value: 0.039

Liveness
type: PropertyValue
value: 0.08

Valence (Positivity)
type: PropertyValue
value: 0.577

Loudness (dB)
type: PropertyValue
value: -2.467

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Minor