Duy Khoa
type: MusicGroup
genre: vietnam indie
genre: v-pop
popularity: 13
followers: 361
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x82cc8c958dc88ac6d748500a1a4e610a9f3658c2f71b7febac8fb66bdde80afd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953807
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953807
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f14a33e7-e7d4-4803-a84a-f6cd10cbabd7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f14a33e7-e7d4-4803-a84a-f6cd10cbabd7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f14a33e7-e7d4-4803-a84a-f6cd10cbabd7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:39:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x82cc8c958dc88ac6d748500a1a4e610a9f3658c2f71b7febac8fb66bdde80afd","name":"Duy Khoa","registered_at":"2026-06-15T05:46:53Z","symbol":"NIM0700833","token_address":"0x50a73e0ab80c9e5f2f4b5b382a42c617ea7d48c3","type":"artist","uuid":"f14a33e7-e7d4-4803-a84a-f6cd10cbabd7"}
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 0x82cc8c958dc88ac6d748500a1a4e610a9f3658c2f71b7febac8fb66bdde80afd. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f14a33e7-e7d4-4803-a84a-f6cd10cbabd7.json and https://artists.proofprofile.net/proofs/artist/f14a33e7-e7d4-4803-a84a-f6cd10cbabd7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0x82cc8c958dc88ac6d748500a1a4e610a9f3658c2f71b7febac8fb66bdde80afd","name":"Duy Khoa","registered_at":"2026-06-15T05:46:53Z","symbol":"NIM0700833","token_address":"0x50a73e0ab80c9e5f2f4b5b382a42c617ea7d48c3","type":"artist","uuid":"f14a33e7-e7d4-4803-a84a-f6cd10cbabd7"}
album: Anh Và Em
  type: MusicAlbum
  date published: 2011-01-01
album: Anh Nghĩ Về Em
  type: MusicAlbum
  date published: 2012-01-01
album: Cà Phê Mê/Sẽ Mãi Chờ
  type: MusicAlbum
  date published: 2012-01-01
album: Nhớ Ơn Thầy Cô
  type: MusicAlbum
  date published: 2013-01-01
album: Bản Tình Ca Đầu Tiên
  type: MusicAlbum
  date published: 2014-08-25
album: Lời Cám Ơn
  type: MusicAlbum
  date published: 2020-01-01
album: Suy Nghĩ Trong Anh
  type: MusicAlbum
  date published: 2020-01-01
album: Giữa Lưng Chừng Thanh Xuân
  type: MusicAlbum
  date published: 2020-01-01
album: Bản Tình Ca Thứ 2
  type: MusicAlbum
  date published: 2020-01-01
album: Sau Những Gì Đã Có
  type: MusicAlbum
  date published: 2020-01-01
album: Lời Hứa
  type: MusicAlbum
  date published: 2020-01-01
album: Lời Hứa
  type: MusicAlbum
  date published: 2020-07-10
album: Hãy Yêu Anh Như Anh Đã Yêu Em
  type: MusicAlbum
  date published: 2020-07-21