Multichain Ecosystem

Definition

The landscape of many coexisting blockchains and layer 2 networks, connected by bridges and messaging protocols so that users and assets can move among them.

In depth

Crypto has spread across general-purpose layer 1 chains, layer 2 rollups built on them, and application-specific chains, each making different trade-offs in speed, cost, security and decentralization. Assets such as stablecoins are deployed on many of these networks at once, often in both native and wrapped forms. This arrangement depends on interoperability infrastructure, including bridges, cross-chain messaging protocols and exchanges, which introduces new trust assumptions and has been the site of major hacks. It also splits liquidity and users across networks, which is why wallets, aggregators and chain abstraction tools try to hide chain boundaries from users.

What does Multichain Ecosystem mean?

Different teams build blockchains optimized for different goals, such as low fees, strong security, privacy or a single application. Users and developers choose where to hold assets and deploy apps based on those trade-offs. Token issuers deploy on several chains to reach those users. Bridges and messaging protocols connect the chains, so assets and data can move between them. Wallets that support many networks, along with aggregators, route users across chains, and each crossing adds fees, delays and the risks of the connecting infrastructure.

An example

Someone keeps savings in stablecoins on Ethereum, trades small amounts on a low-fee layer 2 network, and plays a game on its own app-chain. Moving 100 USDC from the layer 2 network to the game chain takes one bridge transfer costing about $1 and a few minutes. Their wallet shows balances on all three networks, and each network may require a different token for gas.

Figures are illustrative only.

What beginners get wrong

• Many people assume one wallet shows their assets on every chain automatically. Balances live on each network separately, and a wallet may need a network added before it displays them.
• It is easy to think moving between two reputable chains is free of risk. The bridge or messaging protocol connecting them carries its own risk, separate from either chain.
• Some users expect one gas token to work everywhere. Many networks require their own native token for fees, so arriving on a new chain without it can leave funds temporarily unusable.