Mai Hậu
type: MusicGroup
popularity: 4
followers: 37
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x90ed495425151a71eeb49e2bc7fb769be07b176047d778a27db950a37858319e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953915
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953915
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/191fa8fc-0c0c-4b74-9d29-f91011ba68d4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/191fa8fc-0c0c-4b74-9d29-f91011ba68d4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/191fa8fc-0c0c-4b74-9d29-f91011ba68d4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:36:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x90ed495425151a71eeb49e2bc7fb769be07b176047d778a27db950a37858319e","name":"Mai Hậu","registered_at":"2026-06-15T22:16:14Z","symbol":"NIM0848594","token_address":"0x89534cd99d18822838e6218e5784e75a3a62b78f","type":"artist","uuid":"191fa8fc-0c0c-4b74-9d29-f91011ba68d4"}
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 0x90ed495425151a71eeb49e2bc7fb769be07b176047d778a27db950a37858319e. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/191fa8fc-0c0c-4b74-9d29-f91011ba68d4.json and https://artists.proofprofile.net/proofs/artist/191fa8fc-0c0c-4b74-9d29-f91011ba68d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x90ed495425151a71eeb49e2bc7fb769be07b176047d778a27db950a37858319e","name":"Mai Hậu","registered_at":"2026-06-15T22:16:14Z","symbol":"NIM0848594","token_address":"0x89534cd99d18822838e6218e5784e75a3a62b78f","type":"artist","uuid":"191fa8fc-0c0c-4b74-9d29-f91011ba68d4"}
album: Mưa Rừng
  type: MusicAlbum
  date published: 2015-01-01