SGA ChainSGA CHAIN
The Network

The SGA network

The SGA Mainnet is live. Connect your wallet, explore blocks, and start building on a sovereign Layer 1.

SGA Mainnet · Live · Chain ID 20260

Network status

Network status — live

Unreachable
Latest block
—
Block time
3s
Validators
5
Chain ID
20260
Gas price
—
Add this network →

Connect

Add SGA Mainnet to your wallet

Connect

Add SGA Mainnet to MetaMask

One click adds the network. MoSE is the mainnet gas token.

Network name
SGA Mainnet
RPC URL
https://rpc.sgamainnet.ai
Chain ID
20260 (0x4f24)
Currency symbol
MoSE
Block explorer
explorer.sgamainnet.ai

Chain specs

Chain specifications

Protocol

Consensus
Parlia (PoSA)
Block time
3 seconds
Epoch
200 blocks
Validators
5 — fixed at genesis
EVM version
Shanghai

Native asset

Asset
MITOSE
Ticker
MoSE
Total supply
10,000,000,000 · fixed, no inflation, no block rewards

Networks

SGA Mainnet
Chain ID 20260
RPC
https://rpc.sgamainnet.ai
Explorer
explorer.sgamainnet.ai
Legacy testnet
Chain ID 20262 · retiring

Public RPC

Namespaces
eth · net · web3
Transport
TLS, rate-limited (admin/debug not exposed)

Building on SGA? Set evmVersion: shanghai

SGA runs the Shanghai EVM. Solidity 0.8.25+ targets Cancun by default, which produces opcodes SGA does not execute (invalid opcode). Always set the EVM version explicitly — see Developers below.

Mainnet roadmap

Mainnet is live.

  1. Done

    Public testnet (2026-07)

    5 validators, 3-second blocks — the proving ground for mainnet.

  2. Done

    Production validator key ceremony

    Hardened key generation, offline backups, HSM custody.

  3. Done

    Mainnet genesis & launch (2026-10-14)

    Chain ID 20260, MoSE, generated by our deterministic, fail-closed genesis pipeline.

  4. Done

    Public RPC rpc.sgamainnet.ai (2026-10-15)

    JSON-RPC over HTTPS — eth · net · web3.

  5. Planned

    External security audit

    Independent professional review before any mainnet genesis.

  6. In progress

    Mainnet explorer & wallet cut-over

    explorer.sgamainnet.ai now runs on mainnet; SGA Wallet is still being switched to mainnet data.

  7. Planned

    Testnet retirement

    The legacy testnet is retiring.

We ship gates, not deadlines. Each step opens only when the previous one is proven — no launch dates are promised.

Developers

Developer quickstart

Connect

Network:  SGA Mainnet
RPC:      https://rpc.sgamainnet.ai
Chain ID: 20260
Symbol:   MoSE
Explorer: explorer.sgamainnet.ai

Hardhat

// hardhat.config.js
module.exports = {
  solidity: { version: "0.8.28", settings: { evmVersion: "shanghai" } },
  networks: {
    sgaMainnet: { url: "https://rpc.sgamainnet.ai", chainId: 20260 },
  },
};

Foundry

# foundry.toml
[profile.default]
evm_version = "shanghai"

[rpc_endpoints]
sga_mainnet = "https://rpc.sgamainnet.ai"

Full docs, SDK references, and Genesis Studio guides publish here as they ship.