A new patent granted on BDMI

2 min readNov 15, 2021

A new patent has been recently granted on BDMI entitled A Blockchain-based Multi-dimensional Dynamic Identification Method, Device and System (patent no. 201910066499.9).

The patent provides a multidimensional dynamic identity recognition method, device and system based on blockchain technology. The recognition method includes: receiving registration information and personal basic information; Access the user’s biometric information and required business-related information in the public credit department database; Receive identity authentication request through blockchain; Generate service number and asymmetric encrypted public key; Read the encrypted scenario application rules and the biometric information provided by the user through the blockchain and decrypt it; Call the smart contract with cross-checking rules and algorithms from the blockchain; Cross-verify the user’s characteristic information, required business-related information in the database of the public credit department and the biometric information provided by the user to obtain the identification results; Receive the instruction that the hash identification of the record information and identification result ciphertext have been recorded on the blockchain, and send the notification that the identification service has been completed.

It can carry out multidimensional dynamic identity recognition service to ensure the recognition result is more safe and reliable.


THEKEY is a decentralized ecosystem of Identity Verification (IDV) tool integrating national big-data and the blockchain. THEKEY’s proprietary Blockchain-based Dynamic Multi-dimension Identification (BDMI) platform has been using Personal Identity Information (PII) exclusively authorized by the Chinese Government. THEKEY token (TKY) is the only method to settle smart contracts across THEKEY Ecosystem, which is tradable on HitBTC, KuCoin, etc.

For more information, please visit:

Website: https://www.thekey.vip

Twitter: https://twitter.com/thekeyvip

Medium: https://medium.com/@thekeyvip

Telegram: https://t.me/THEKEYOFFICIAL

Reddit: https://www.reddit.com/r/THEKEYOFFICIAL

Facebook: https://www.facebook.com/TheKey-1439094662870680/

YouTube: https://www.youtube.com/channel/UCDuN2bjI7cAhoIIxJ_nTaCQ




THEKEY is a blockchain based identity verification technology (IDV) being developed to create secure digital identities for the future.