Sao Mai
type: MusicGroup
popularity: 13
followers: 31
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa2fcbc34b4ece3fd920f7b53ca1f99263a59470946e1db357d6a09ddcc9481f7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/281da123-17a9-4535-86e2-978dc69a247f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/281da123-17a9-4535-86e2-978dc69a247f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/281da123-17a9-4535-86e2-978dc69a247f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa2fcbc34b4ece3fd920f7b53ca1f99263a59470946e1db357d6a09ddcc9481f7","name":"Sao Mai","registered_at":"2026-06-14T08:40:02Z","symbol":"NIM0398537","token_address":"0x46853fb5e4dc8a00a314dc5f5c435f6d3abd3e59","type":"artist","uuid":"281da123-17a9-4535-86e2-978dc69a247f"}
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 0xa2fcbc34b4ece3fd920f7b53ca1f99263a59470946e1db357d6a09ddcc9481f7. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/281da123-17a9-4535-86e2-978dc69a247f.json and https://artists.proofprofile.net/proofs/artist/281da123-17a9-4535-86e2-978dc69a247f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0xa2fcbc34b4ece3fd920f7b53ca1f99263a59470946e1db357d6a09ddcc9481f7","name":"Sao Mai","registered_at":"2026-06-14T08:40:02Z","symbol":"NIM0398537","token_address":"0x46853fb5e4dc8a00a314dc5f5c435f6d3abd3e59","type":"artist","uuid":"281da123-17a9-4535-86e2-978dc69a247f"}
album: Ta Lỡ Duyên Kiếp Này
  type: MusicAlbum
  date published: 2022-12-18
album: Nước Mắt Mùa Thu
  type: MusicAlbum
  date published: 2024-03-18
album: Tình Buồn Mênh Mang
  type: MusicAlbum
  date published: 2024-05-07