Tùng Tun
type: MusicGroup
genre: v-pop
popularity: 5
followers: 29
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef15b065dbb901b64e20485ac59ea839c98a2d12090008933ef9df8d084710d4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a844b3fa-e2eb-4a26-94b0-50c3192ac2a8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a844b3fa-e2eb-4a26-94b0-50c3192ac2a8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a844b3fa-e2eb-4a26-94b0-50c3192ac2a8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xef15b065dbb901b64e20485ac59ea839c98a2d12090008933ef9df8d084710d4","name":"Tùng Tun","registered_at":"2026-06-20T08:10:01Z","symbol":"NIM1565310","token_address":"0x288df2f2cc4e45dcf94fdd17cdaa99285c44e44f","type":"artist","uuid":"a844b3fa-e2eb-4a26-94b0-50c3192ac2a8"}
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 0xef15b065dbb901b64e20485ac59ea839c98a2d12090008933ef9df8d084710d4. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a844b3fa-e2eb-4a26-94b0-50c3192ac2a8.json and https://artists.proofprofile.net/proofs/artist/a844b3fa-e2eb-4a26-94b0-50c3192ac2a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xef15b065dbb901b64e20485ac59ea839c98a2d12090008933ef9df8d084710d4","name":"Tùng Tun","registered_at":"2026-06-20T08:10:01Z","symbol":"NIM1565310","token_address":"0x288df2f2cc4e45dcf94fdd17cdaa99285c44e44f","type":"artist","uuid":"a844b3fa-e2eb-4a26-94b0-50c3192ac2a8"}
album: Một Thương Hai Chờ
  type: MusicAlbum
  date published: 2022-01-07
  track: Một Thương Hai Chờ
    type: MusicRecording
    duration: PT5M52S
    duration ms: 352000
    explicit: false
    by artist: Tùng Tun
    in album: Một Thương Hai Chờ
      type: MusicAlbum
      date published: 2022-01-07
    genre: v-pop
    isrc code: FR10S2200726
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T03:54:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6222edd1c72f182d9ecd9658a92bddeb751d764a57deef7b259482cf54315a9e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956476
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956476
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2200726
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T09:04:44Z
    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 0x6222edd1c72f182d9ecd9658a92bddeb751d764a57deef7b259482cf54315a9e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR10S2200726.
      date published: 2026-07-03T09:04:44Z
    audio: Một Thương Hai Chờ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.948
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.514
      additional property: Energy
        type: PropertyValue
        value: 0.188
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.792
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.055
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.382
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.389
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Hoa Ly
  type: MusicAlbum
  date published: 2022-07-24
album: Tự Hào Lắm Việt Nam Ơi!
  type: MusicAlbum
  date published: 2024-08-29
album: Lỡ Lỡ Thích Em
  type: MusicAlbum
  date published: 2025-05-19
album: Lỡ Lỡ Thích Em (Speed Up)
  type: MusicAlbum
  date published: 2025-05-24
album: Just Fall Right In Love
  type: MusicAlbum
  date published: 2025-07-16
album: Tiếng Gọi Tuổi Trẻ Đất Nước
  type: MusicAlbum
  date published: 2025-11-04