What Is a Sidechain and How Does Its Security Model Differ from a Rollup? ⎊ Path

What Is a Sidechain and How Does Its Security Model Differ from a Rollup?

A sidechain is a separate, independent blockchain that runs parallel to the main chain (L1) and is connected by a two-way bridge. Its security model is independent of the L1; it relies on its own set of validators and consensus mechanism.

A rollup, conversely, is a Layer-2 solution that derives its security directly from the L1. If a rollup's sequencer is malicious, the L1 can enforce the correct state via fraud or validity proofs, which is not the case for a sidechain.

How Does the Two-Way Peg Mechanism Work for a Sidechain?

How Do Sidechains Differ from Layer-2 Solutions like Lightning Network?

What Is the Difference between a Rollup and a Sidechain?

Can a UTXO Transaction Be Replayed on a Sidechain?

If a Miner Finds a Valid Block Solution, How Does the Pool Ensure the Reward Is Properly Claimed?

How Does ‘Layer 2 Scaling’ Fundamentally Differ from ‘Layer 1 Scaling’?

How Is a “Sidechain” Different from the Main Blockchain?

What Is the Difference between a ‘Share’ and a ‘Valid Block’?