Sandra Ngo
type: MusicGroup
popularity: 3
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x125ff752a3b9f15c95192a7e6833cb4e823a32f2727c6d7847549eac62b2db7e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4099b1fb-565b-4a9f-ab22-924a8ba2aba0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4099b1fb-565b-4a9f-ab22-924a8ba2aba0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4099b1fb-565b-4a9f-ab22-924a8ba2aba0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x125ff752a3b9f15c95192a7e6833cb4e823a32f2727c6d7847549eac62b2db7e","name":"Sandra Ngo","registered_at":"2026-06-16T12:03:52Z","symbol":"NIM1046201","token_address":"0x706934a11582222bfe963dd4bfbd78aecbf6aee5","type":"artist","uuid":"4099b1fb-565b-4a9f-ab22-924a8ba2aba0"}
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 0x125ff752a3b9f15c95192a7e6833cb4e823a32f2727c6d7847549eac62b2db7e. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4099b1fb-565b-4a9f-ab22-924a8ba2aba0.json and https://artists.proofprofile.net/proofs/artist/4099b1fb-565b-4a9f-ab22-924a8ba2aba0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T04:15:20Z
  text: {"copyright_id":"0x125ff752a3b9f15c95192a7e6833cb4e823a32f2727c6d7847549eac62b2db7e","name":"Sandra Ngo","registered_at":"2026-06-16T12:03:52Z","symbol":"NIM1046201","token_address":"0x706934a11582222bfe963dd4bfbd78aecbf6aee5","type":"artist","uuid":"4099b1fb-565b-4a9f-ab22-924a8ba2aba0"}
album: Tiet Giao Doat Ngoc
  type: MusicAlbum
  date published: 2022-08-01
album: Hoa Dieu Ngu Cung 1
  type: MusicAlbum
  date published: 2022-08-27
album: Vong Co Mien Nam 1
  type: MusicAlbum
  date published: 2022-08-27
album: Vong Co Mien Nam 2
  type: MusicAlbum
  date published: 2022-08-29
album: Hòa Điệu Ngũ Cung 2
  type: MusicAlbum
  date published: 2022-09-01
album: Vọng Cổ Miền Nam 3
  type: MusicAlbum
  date published: 2022-09-08
album: Hòa Điệu Ngũ Cung 3
  type: MusicAlbum
  date published: 2022-09-08
album: Giai Điệu Hồ Bình Quảng Khúc
  type: MusicAlbum
  date published: 2022-10-05
album: Hòa Điệu Ngũ Cung 4
  type: MusicAlbum
  date published: 2022-12-06