Sequencer

In the LayerEdge framework, a Sequencer plays a crucial role by performing the following tasks:

1. State Proof Generation: At the HMDA protocol level, sequencers compile state proofs from Layer 1 decentralized applications (dApps) and Layer 2 solutions.

2. Data Aggregation: At the verification layer, they aggregate transaction data and state updates into a compact format suitable for inclusion in Bitcoin transactions.

3. OP_RETURN Transaction Submission: Sequencers submit the compiled state proofs as OP_RETURN transactions on the Bitcoin blockchain. These transactions serve as cryptographic commitments to the current state of the off-chain data.

4. Timestamping: By utilizing Bitcoin’s timestamping capabilities, Sequencers ensure that each state proof is securely anchored to the Bitcoin network, providing a verifiable record of the state at a specific time.

Overall, Sequencers are essential for generating, aggregating, and recording state proofs to ensure data integrity and availability.