Nguyễn Đăng Nguyên
type: MusicGroup
genre: v-pop
popularity: 4
followers: 42
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7717414b70006168b92e815ce8b90feff56ebb97137e83ed77017449d7ecc5f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/666a6676-e7c4-4500-911c-c4a2b0fe1275.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/666a6676-e7c4-4500-911c-c4a2b0fe1275.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/666a6676-e7c4-4500-911c-c4a2b0fe1275
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf7717414b70006168b92e815ce8b90feff56ebb97137e83ed77017449d7ecc5f","name":"Nguyễn Đăng Nguyên","registered_at":"2026-06-17T01:19:42Z","symbol":"NIM1236075","token_address":"0x0be3fa1fcd36c854bf99a16bd14d3c1575049ef6","type":"artist","uuid":"666a6676-e7c4-4500-911c-c4a2b0fe1275"}
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 0xf7717414b70006168b92e815ce8b90feff56ebb97137e83ed77017449d7ecc5f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/666a6676-e7c4-4500-911c-c4a2b0fe1275.json and https://artists.proofprofile.net/proofs/artist/666a6676-e7c4-4500-911c-c4a2b0fe1275.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xf7717414b70006168b92e815ce8b90feff56ebb97137e83ed77017449d7ecc5f","name":"Nguyễn Đăng Nguyên","registered_at":"2026-06-17T01:19:42Z","symbol":"NIM1236075","token_address":"0x0be3fa1fcd36c854bf99a16bd14d3c1575049ef6","type":"artist","uuid":"666a6676-e7c4-4500-911c-c4a2b0fe1275"}
album: Lạnh Lẽo
  type: MusicAlbum
  date published: 2018-03-01
album: Có Chắc Chia Tay Là Sẽ Quên
  type: MusicAlbum
  date published: 2018-03-01
album: Đại Ngư (From "Đại Ngư Hải Đường" Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2020-09-21
album: Có Chắc Chia Tay Là Sẽ Quên
  type: MusicAlbum
  date published: 2020-09-29
  track: Có Chắc Chia Tay Là Sẽ Quên
    type: MusicRecording
    duration: PT4M47S
    duration ms: 287388
    explicit: false
    by artist: Nguyễn Đăng Nguyên
    in album: Có Chắc Chia Tay Là Sẽ Quên
      type: MusicAlbum
      date published: 2020-09-29
    genre: v-pop
    isrc code: VNA0M1908685
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T22:54:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x22f13402d0f2042790293300709c38c5a1c1fa77ded9596ebf835038f00c2475
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1908685
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0x22f13402d0f2042790293300709c38c5a1c1fa77ded9596ebf835038f00c2475. 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/VNA0M1908685.
      date published: 2026-07-06T01:26:17Z
    audio: Có Chắc Chia Tay Là Sẽ Quên
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 79.999
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.649
      additional property: Energy
        type: PropertyValue
        value: 0.296
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.778
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.316
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.217
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.201
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Cửu Biệt
  type: MusicAlbum
  date published: 2020-10-01
  track: Cửu Biệt
    type: MusicRecording
    duration: PT3M59S
    duration ms: 239211
    explicit: false
    by artist: Nguyễn Đăng Nguyên
    in album: Cửu Biệt
      type: MusicAlbum
      date published: 2020-10-01
    genre: v-pop
    isrc code: VNA0M1908800
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T19:43:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x906f53707e4c6c3c893639ad41524f7a864f49360e2c525c50573ff5ae3f6944
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0M1908800
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 → 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 0x906f53707e4c6c3c893639ad41524f7a864f49360e2c525c50573ff5ae3f6944. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/VNA0M1908800.
      date published: 2026-07-05T01:12:41Z
    audio: Cửu Biệt
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.939
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.736
      additional property: Energy
        type: PropertyValue
        value: 0.436
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      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

Acousticness
type: PropertyValue
value: 0.721

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.1

Valence (Positivity)
type: PropertyValue
value: 0.536

Loudness (dB)
type: PropertyValue
value: -9.409

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Lạnh Lẽo
type: MusicAlbum
date published: 2020-11-05