Ca sĩ Tuấn Vũ
type: MusicGroup
genre: bolero
popularity: 3
followers: 110
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x36c04db75d1d58de7b345472b932467d3259c86e4d64fe91532270d3547f2c01
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953928
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953928
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1e8920ab-6cd4-478b-8ca7-ae3af797fc28.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1e8920ab-6cd4-478b-8ca7-ae3af797fc28.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1e8920ab-6cd4-478b-8ca7-ae3af797fc28
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:21:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x36c04db75d1d58de7b345472b932467d3259c86e4d64fe91532270d3547f2c01","name":"Ca sĩ Tuấn Vũ","registered_at":"2026-06-16T00:04:53Z","symbol":"NIM0874532","token_address":"0x06fa98766ca8a333bd1f6e39b7be8159d95a09eb","type":"artist","uuid":"1e8920ab-6cd4-478b-8ca7-ae3af797fc28"}
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 0x36c04db75d1d58de7b345472b932467d3259c86e4d64fe91532270d3547f2c01. Chain 2 (Bitcoin): anchored in block 953928 (2026-06-16T10:21:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e8920ab-6cd4-478b-8ca7-ae3af797fc28.json and https://artists.proofprofile.net/proofs/artist/1e8920ab-6cd4-478b-8ca7-ae3af797fc28.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T10:21:55Z
  text: {"copyright_id":"0x36c04db75d1d58de7b345472b932467d3259c86e4d64fe91532270d3547f2c01","name":"Ca sĩ Tuấn Vũ","registered_at":"2026-06-16T00:04:53Z","symbol":"NIM0874532","token_address":"0x06fa98766ca8a333bd1f6e39b7be8159d95a09eb","type":"artist","uuid":"1e8920ab-6cd4-478b-8ca7-ae3af797fc28"}
album: Mot Minh
  type: MusicAlbum
  date published: 2023-12-04
album: Thư Tình Em Gái
  type: MusicAlbum
  date published: 2023-12-04
  track: Thư Tình Em Gái
    type: MusicRecording
    duration: PT5M59S
    duration ms: 359907
    explicit: false
    by artist: Ca sĩ Tuấn Vũ
    in album: Thư Tình Em Gái
      type: MusicAlbum
      date published: 2023-12-04
    genre: bolero
    isrc code: QZWFK2300003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T09:03:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xea33fe61ebc56c2a6fccfb3788f8c8be1d50f8835801910a241497e2bb306a69
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFK2300003
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0xea33fe61ebc56c2a6fccfb3788f8c8be1d50f8835801910a241497e2bb306a69. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFK2300003.
      date published: 2026-07-04T10:04:33Z
    audio: Thư Tình Em Gái
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.126
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.548
      additional property: Energy
        type: PropertyValue
        value: 0.486
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.691
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.494
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.322
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.726
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Định Mệnh
  type: MusicAlbum
  date published: 2023-12-04
album: Hãy Quên Anh
  type: MusicAlbum
  date published: 2025-05-12