ASI Node Architecture

The ASI Scala Node is the core blockchain engine running in Docker.

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High-Level Overview

Port Configuration

Each node exposes multiple ports for different protocols.

Port	Protocol	Purpose	Access
40400	TCP	Protocol / P2P communication	Public
40401	TCP	Public gRPC API	Public
40402	TCP	Internal gRPC API	Localhost
40403	HTTP	Deploy and query REST API	Public
40404	UDP	Kademlia peer discovery	Public
40405	HTTP	Admin API	Localhost only

Core Services

The node core handles consensus and smart contract execution.

Service	Function
Consensus Engine	CBC Casper block validation and finalization
Rholang Runtime	Smart contract execution environment
Storage Layer	Block and state persistence (LMDB)

API Layer

HTTP and gRPC interfaces for client interaction.

Endpoint	Method	Purpose
/api/deploy	POST	Submit signed deploy
/api/explore-deploy	POST	Read-only query
/api/blocks	GET	Block information
/status	GET	Node status

P2P Networking

Nodes communicate using the Kademlia protocol.

Phase	Description
Bootstrap	Initial connection to known node
Discovery	Find and connect to peers
Sync	Download missing blocks
Gossip	Propagate new blocks/deploys

Configuration Files

File	Purpose
rnode.conf	Network and node settings
logback.xml	Logging configuration
Validator keys	Private key for signing

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Related Documentation

• Validator Setup - How to run a validator
• Observer Setup - Read-only node setup
• Node Lifecycle - Node states