# Settlement Layers ⎊ Area ⎊ Resource 3

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## What is the Architecture of Settlement Layers?

Settlement layers refer to the foundational components of a blockchain network responsible for finalizing transactions and ensuring data integrity. In a multi-layered architecture, the settlement layer (Layer 1) provides the ultimate source of truth for all transactions. This layer guarantees the security and immutability of records, which is essential for trustless execution of financial derivatives.

## What is the Finality of Settlement Layers?

The concept of finality is central to settlement layers, ensuring that once a transaction is confirmed, it cannot be reversed or altered. This guarantee is crucial for on-chain options trading, where the final settlement of contracts must be definitive. Different consensus mechanisms offer varying degrees of finality, impacting the speed and security of derivatives settlement.

## What is the Efficiency of Settlement Layers?

The efficiency of settlement layers directly impacts the cost and speed of on-chain derivatives trading. High transaction throughput and low latency are necessary to support high-frequency trading strategies. Layer 2 solutions are designed to improve efficiency by processing transactions off-chain and periodically settling them on the main layer, thereby reducing congestion and costs.


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## [Hardware-Agnostic Proof Systems](https://term.greeks.live/term/hardware-agnostic-proof-systems/)

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**Original URL:** https://term.greeks.live/area/settlement-layers/resource/3/