Sovereign L1 · Solidity · Live
A live Solidity chain, running in the open.
Satsuma is a sovereign Layer-1 that runs Solidity smart contracts — live in production, Ethereum-compatible, with blocks that finalize in seconds. Every block is public and readable by anyone; writing to the chain is permissioned.
What Satsuma is
A real chain, not a demo. Solidity, not a subset.
Its own Layer-1 — sovereign, live, and fully transparent. It speaks Ethereum, runs the Solidity you'd expect at full fidelity, and keeps every byte of state in public view. The only thing it holds back is who's allowed to write.
Real Solidity
Contracts run with full EVM semantics — the same bytecode the ecosystem already speaks, no subset and no surprises.
Public by default
Every block, transaction, and contract call is readable by anyone. The chain hides nothing — the explorer is its front door.
Closed where it counts
Reading is open to all. Transacting and deploying is limited to approved accounts — the chain is sovereign, and stays that way.
Chain ID 555555555
Native token SUMA · 18 decimals · eip-155. One validator set, one job: settle on schedule.
Speaks Ethereum
A standard Ethereum JSON-RPC interface and an EIP-155 chain ID mean familiar wallets and explorers understand Satsuma out of the box.
The explorer
Watch it settle, live.
This is the real explorer, streaming the chain as it seals — no sign-up, no wallet. Expand it for the full view.
Latest blocks
updating liveNetwork status
● operationalLitepaper · v1.0
How the chain actually works.
The technical paper on the network as it runs today: open reads with allowlisted writes enforced by the protocol itself, 2‑second blocks with deterministic finality, stable utilization‑targeted fees — and a trust model we state out loud.
Satsuma engineering
Building a live Solidity Layer-1, in the open.
Deep-dives, comparisons, and updates from building Satsuma — on performance, architecture, and the developer experience.