Dong Thao
type: MusicGroup
popularity: 3
followers: 50
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ef1c0a19c058ae6cbd816e8dbbb1f7cf2cd6a65fda20e98213191cf54d64928
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de4d7926-ba8e-4a53-8355-3da53da47ca6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de4d7926-ba8e-4a53-8355-3da53da47ca6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/de4d7926-ba8e-4a53-8355-3da53da47ca6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ef1c0a19c058ae6cbd816e8dbbb1f7cf2cd6a65fda20e98213191cf54d64928","name":"Dong Thao","registered_at":"2026-06-21T05:35:44Z","symbol":"NIM1835628","token_address":"0x2a81c7421b01bc4c6f00fe784961020e09e4d06c","type":"artist","uuid":"de4d7926-ba8e-4a53-8355-3da53da47ca6"}
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 0x2ef1c0a19c058ae6cbd816e8dbbb1f7cf2cd6a65fda20e98213191cf54d64928. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de4d7926-ba8e-4a53-8355-3da53da47ca6.json and https://artists.proofprofile.net/proofs/artist/de4d7926-ba8e-4a53-8355-3da53da47ca6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x2ef1c0a19c058ae6cbd816e8dbbb1f7cf2cd6a65fda20e98213191cf54d64928","name":"Dong Thao","registered_at":"2026-06-21T05:35:44Z","symbol":"NIM1835628","token_address":"0x2a81c7421b01bc4c6f00fe784961020e09e4d06c","type":"artist","uuid":"de4d7926-ba8e-4a53-8355-3da53da47ca6"}
album: Giong Nhac Cho Que Huong
  type: MusicAlbum
  date published: 2010-02-02
album: Mùa Xuân Trên Đỉnh Bình Yên
  type: MusicAlbum
  date published: 2019-02-17
  track: Rừng xưa đã khép
    type: MusicRecording
    duration: PT3M48S
    duration ms: 228653
    explicit: false
    by artist: Dong Thao
    in album: Mùa Xuân Trên Đỉnh Bình Yên
      type: MusicAlbum
      date published: 2019-02-17
    isrc code: QZDA71965773
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T16:05:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbe3cdc5f23ffdb69825f514598db003e71b805d69cfa91fdd049f0fed1a6c053
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958907
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958907
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA71965773
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T16:17:58Z
    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 0xbe3cdc5f23ffdb69825f514598db003e71b805d69cfa91fdd049f0fed1a6c053. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QZDA71965773.
      date published: 2026-07-20T16:17:58Z
    audio: Rừng xưa đã khép
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 176.528
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.197
      additional property: Energy
        type: PropertyValue
        value: 0.499
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.116
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.156
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.146
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.238
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor