Ethereum doesn’t have a rollup problem. It has a coordination problem. Compose Network is fixing that with synchronous composability.

What’s the Ethereum ecosystem's biggest interoperability problem right now? 👇

5/ That’s why Compose aligns perfectly with Ethereum’s long-term vision. Not to replace it, but to complete it. Bringing Ethereum back together. Rollups, finally in sync.

4/ The result? Ethereum grows without fragmentation. A network of rollups that remain sovereign… …yet act in sync. Composability returns. UX improves. Trust stays Ethereum-level.

3/ While bridges move assets, Compose connects state. It enables atomic transactions across rollups, inside Ethereum’s own trust model. No wrapped tokens. No waiting rooms. Just Ethereum-native interoperability.

2/ It stays true to the Ethereum ethos: ✅ Open participation ✅ Credible neutrality ✅ Trust-minimized coordination ✅ Rollup sovereignty Compose is not a new empire. It’s a shared language between city-states.

1/ Compose doesn’t reinvent Ethereum. It unlocks what Ethereum was always meant to become. No new chains. No new trust assumptions. Just Ethereum validators coordinating across rollups.

Ethereum has always evolved without abandoning its core principles. From ETH1 → ETH2 → Rollups → Composability (soon). Each phase built on the same foundation: decentralization, sovereignty, and coordination.

Ethereum is even better with thousands of rollups* *with sync composability

Ethereum should feel like one chain, not 150 chains.

Most Ethereum interoperability solutions rely on a Shared Sequencer. Compose takes a different path. Rollups are not eager to give up their sequencing, as it's central to their autonomy and a primary source of revenue. A Shared Sequencer orders transactions before execution. The Compose Shared Publisher synchronizes rollups after execution, without controlling them. 👇

Compose turns “which chain am I on?” into “who cares?”

Ethereum didn’t scale quietly. It multiplied. From the first L2 in 2021 to 150+ by 2025. More L2s mean more choice, more throughput, more innovation. But also more fragmentation. Liquidity splits. UX breaks. Composability disappears. Compose Network brings it back in 2026. Sync composability across Ethereum and rollups, as if they were one chain.

Would you rather use 1 app across all rollups or 10 apps on 10 different rollups?

The Ethereum ecosystem with synchronous composability. Rollups and Ethereum, finally working in sync.

In 2025, we defined the primitives. Concrete designs for atomic cross-rollup execution, safe coordination, and Ethereum-native settlement. The groundwork is set. Early 2026 brings the first testnet. Later, Compose moves toward mainnet as the new Ethereum coordination layer. A huge year for Ethereum and the L2s ahead.

Under the hood, this is real protocol machinery. Mailbox primitives for cross-domain contract calls, plus a two-phase commit style workflow so rollups can safely simulate, vote, and execute as one atomic bundle.

The core principle is simple: cross-rollup actions must be all-or-nothing. Compose coordinates a multi-leg transaction across rollups and only commits if every leg succeeds. If one fails, the entire flow reverts.

The architecture is intentionally Ethereum-native: Coordination and execution powered by Ethereum validators via @ssv_network’s DVT. ZK proof aggregation to settle cross-rollup flows back to L1. Built on OP Stack + Succinct for validity-proof rollups.

Compose is our answer. Instant, atomic, composable transactions across rollups, without asking rollups to give up sovereignty.