# What is beacon Layer

By [Untitled](https://paragraph.com/@0xc8bace44a41c14dd9b6b429f51d7e0820175dfa9) · 2023-06-14

---

How it works
------------

Beacon Layer is an interlayer between the execution layer and the data availability layer and all the rollups instantiated via AltLayer are enshrined to the Beacon Layer. The term “enshrined” here refers to the fact that the state of any rollup launched via AltLayer can be verified directly by the Beacon Layer.

The Beacon layer consists of several parts:

### Shared Sequencing Layer

Rollup works by combining transactions into one block and sending them to L1. Due to this it is possible to reduce the cost of transactions and increase TPS. But many developers are chasing speed and forget about the main goal of blockchain - decentralization and freedom. These developers make centralized sequencers, so that all data is compressed on one device and sent to L1, this saves on the consensus mechanism

Altlayer, on the other hand, uses a decentralized network of sequencers, this avoids censorship for altlayer by a single sequencer or keeps it running in case one of the sequencers fails

![How decentralized sequencer works](https://storage.googleapis.com/papyrus_images/be402360504b4534c9c8e89303d8db3d20850f69ccaad77575d19672c2ede5bb.png)

How decentralized sequencer works

### Verification layer

With this layer, all rollups can be verified on the beacon layer side. Verification comes at the expense of a large set of validators, which makes altlayer even more decentralized. Also, this decentralization allows you to withdraw funds from l2 instantly, instead of waiting more than a day

### Stacking/Slashing layer

Since altlayer has a node in altlayer there is a stacking mechanism. Assets in altlayer are more in demand because you can easily earn from stacking

### Interoperability layer

This allows you to create trust between the beacon layer and the rollups, and therefore between rollups. The beacon layer also allows the exchange of assets between rollups. So this will allow you to make asset exchanges between multiple rollups, just imagine, with an altler you can take liquidity from one dapp and transfer it to another

### Upgradeability layer

With updates and multisig, centralized rollups can do any updates and even take away user funds. Validators and sequencers who disagree with the fork can cancel it

### Social Consensus layer

Nodes can also run onchain voting o ratify upgrades to the rollup logic and thereby they can act on behalf of the community to upgrade any bridge contract on the Beacon Layer or the DA layer.

---

*Originally published on [Untitled](https://paragraph.com/@0xc8bace44a41c14dd9b6b429f51d7e0820175dfa9/what-is-beacon-layer)*