Deploy the Aston's own core system to build a platform for implementing a wide variety of application services

The world’s first

Technical White Paper
Participation as a full node managing a large blockchain requires a certain level of performance. This level is continuously raised in proportion to the size of the block chain. In the end, the reliability of the transaction will depend on a small number of node groups, which means that centralization will be compromised.
X.Blockchain enables optional blockchain configuration and management beyond the constraints that all nodes must manage the entire block. Creates a solution by organizing problems in an existing linear structure into multiple separate sets.

X.Blockchain Structure

Main Chain
It creates a special block with the same structure as a regular block chain, but with a branch of the block. Starting with this block, the Sub Chain can be connect ed and expanded.
Sub Chain
It is an expanded block starting from Main Chain, but it is a complete and independent blockchain in itself. Sub Chain can also be the Main Chain of another Sub Chain.
X.Blockchain consists of an X.Block connection to a regular block, which means a special block that can be broken up. Unlike regular blocks, it has multiple hash connections.

Consensus mechanism of X.Blockchain

X.Blockchain's special block connection structure prevents the known agreement mechanism from being applied as expected, hence a legitimacy of 'X.Block creating' and 'Link new block to certain Sub Chain' is required to agree in addition.
Proof of Forkability (PoF) is used as a key component of the agreement mechanism in conjunction with PBFT + dPoS, which is a demonstration method that takes into account 'Allow Branch '.
Blocks belonging to different Sub Chain may be proposed at the same time as PoF, since the agreement process for multiple blocks can proceed in parallel. In addition, the agreement procedure for each block does not need to be synchronized with the outcome of the agreement for the other block.


Smart-Pass-On is an authentication platform that combines blockchain technology, biometric identification, and public key infrastructure (PKI) technology. By combining a variety of encryption technologies to increase confidentiality and manage them on the block chain, we essentially blocked the above modulation and security. In addition, service providers receive the A to Z required to deploy the system in an open API format for ease of deployment.

smart pass on
Biometric identification
For identification purposes, API is provided to establish identity authentication service using personal biometric information such as fingerprints, iris, face, and voice.
Personal Identification / Personal Authentication
It provides APIs necessary for electronic authentication using private certificates, such as personal identification authentication and personal identification authentication, and authentication institutions with public key infrastruc ture.
Operation and management of electronic documents
It provides all interfaces and APIs necessary for electronic document operation and management to prove that the document is original.
Blockchain System
By creating API of blockchain technology that forms a new paradigm for electronic media storage, an electronic document system can be established through third parties.