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Documentation Index

Fetch the complete documentation index at: https://seilabs.mintlify.app/llms.txt

Use this file to discover all available pages before exploring further.

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Introduction

This document provides comprehensive technical specifications for Sei Giga, covering both current features and upcoming architectural enhancements. The specifications are organized to clearly distinguish between what is currently deployed and what is planned for future releases.

Current Implementation

Features and specifications that are live on the Sei network today.

Upcoming Features

Planned features and specifications in development.

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Consensus Architecture

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Current: Twin Turbo Consensus

Live Implementation

Protocol Specifications

PropertyValue
Base ProtocolEnhanced Tendermint BFT
Marketing NameTwin Turbo Consensus
Target Block Time~400ms
FinalityInstant (1 block)
Safety Threshold⅔ + 1 validators

Optimizations

  • Pipelined block processing
  • Optimistic execution
  • Aggressive timeouts
  • Parallel validation

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Upcoming: Autobahn Consensus

In Development

Protocol Design

PropertyValue
ArchitectureMulti-proposer BFT
Target Block TimeSub-second
Proposer ModelParallel lanes
Safety ModelByzantine Fault Tolerant

Key Innovations

  • Asynchronous execution
  • Data availability lanes
  • Consensus/execution separation
  • Optimized data dissemination

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Execution Engine

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Current: Parallel EVM Execution

Live Implementation

EVM Compatibility

Full Ethereum Virtual Machine compatibility with standard opcodes and gas metering.

OCC Parallel Execution

Optimistic Concurrency Control with multi-worker transaction processing and conflict resolution.

State Management

Optimized state access patterns with SeiDB storage backend.
Execution Specifications
PropertyValue
VM TypeEthereum Virtual Machine
Gas ModelEthereum-compatible
Execution ModelParallel with OCC
Supported LanguagesSolidity, Vyper, YUL
PrecompilesStandard + Sei Native
State ModelAccount-based

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Storage Architecture

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Current: SeiDB

Live Implementation

Architecture

PropertyValue
Storage TypeKey-Value Store
State TreeMerkle Patricia Trie
CachingMulti-level
ConcurrencyThread-safe

Optimizations

  • Hot state caching
  • Efficient pruning
  • Parallel state access
  • Optimized serialization

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Network Specifications

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Protocol Parameters

Network Configuration

Consensus Parameters

PropertyValue
Max Validators100
Voting PowerStake-weighted
Unbonding Period21 days
SlashingByzantine behavior

Block Parameters

PropertyValue
Max Block Size22 MB
Max Gas LimitDynamic
Base FeeEIP-1559 compatible
Priority FeeSupported

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Performance Targets

Engineering Targets: The following performance specifications represent engineering targets for the upcoming Sei Giga architecture with Autobahn consensus, not current network performance.

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Upcoming: Target Performance Specifications

Performance Targets

5B Gas per Second

Peak throughput target

<1s Finality

Transaction confirmation

200K+ TPS

Simple transfers

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Developer Interface

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JSON-RPC Compatibility

Ethereum JSON-RPC Support

Standard Methods

  • eth_sendTransaction
  • eth_call
  • eth_getBalance
  • eth_getTransactionReceipt

Enhanced Methods

  • debug_traceTransaction
  • eth_feeHistory
  • eth_maxPriorityFeePerGas
  • net_version

Overview

High-level introduction to Sei Giga architecture and features.

Developer Guide

Complete guide for building applications on Sei Giga.