Especially for optimistic rollups....rollup....When funds are withdrawn from an optimistic rollup back to Ethereum using a roll-up bridge, funds are...Extent of Maliciousness As of now, Optimistic rollups collectively hold over $30 bn in TVL....rollup frameworks.

ZK (Validity) Rollups: Entering the General Purpose Era [Excerpt from a Delphi Insights report] Rollups...Rollups (ORU) and ZK Rollups (ZKR)....Fraud proofs, as used in Optimistic rollups, are only needed when disputing the transactions posted to...The main issue with rollups is that they only offer a linear increase in scalability.

Rollup implementations, are designed to be general-purpose....Importantly, these Rollups inherent the underlying security assurances of Ethereum....This is because, as part of the Rollup security model, the Rollup Sequencer (the party that replaces...Furthermore, similar to L1, fees are also driven by congestion on the Rollup. ...

Synthetix and Optimism While the rollups we know and love today were still being built, Synthetix committed...to building on Optimism – one of the earliest projects to commit to a specific rollup.

This simplified graphic depicts the parts which apply to both Ethereum optimistic rollups (ORUs) and...Settlement from Rollups – Rollups post proofs to the L1....It’s quite optimistic that every rollup will run near the lower bound of DA efficiency....rollup.

In this report, we look at how the Layer 2 ecosystem is shaping up and dive into the varying rollup solutions...order to unlock the next phase of growth, the scaling torch has been passed over to Layer 2s, led by rollup...

Based rollups Quoting Justin Drake: “A rollup is said to be based, or L1-sequenced, when its sequencing...With based rollups, every rollup and their competitors can opt-in to use the already bootstrapped and...If current rollups were to switch to become a based rollup, they’d be giving up this value to the L1...

...and there are two main categories: Optimistic Rollups (ORU) and ZK Rollups (ZKR)....Fraud proofs, as used in Optimistic rollups, are only needed when disputing the transactions posted to...In fact, the term “ZK Rollup” is not really appropriate; instead, they should be called “Validity Rollups...

In the case of Optimistic Rollups, fraud proofs require access to the transaction data along with the...Rollups The full utility of these infrastructure components by the rollups is still in its infancy....the entire rollup execution....This is similar to BOB, which is currently an Optimistic rollup on ETH, which will use BitVM, Optimine...

⚡ The Complete Guide to Rollups Current rollups settle to Ethereum where they have a smart contract...As rollups decentralize and smart contracts become battle-tested, these rollups could scale Ethereum...You can also build rollups on top of these rollups, so-called “L3s.”...It could serve as a settlement layer for other rollups.

The optimistic bridge evokes the optimistic roll-ups in my mind, because roll-ups at the end are just...optimistic roll-ups....roll-ups with optimistic interop....In both of these systems, optimistic roll-ups and optimistic interoperability protocols, you’re attempting...to optimistic roll-ups?

UMA provides an optimistic oracle that Prediction markets rely on for resolution....(Optimistic Oracle) to process data and resolve the market....multi-sig of 7-9 people aligned with the success of a prediction market is far more secure then an optimistic...

Chart of The Day: Arbitrum vs Optimism Arbitrum and Optimism are the two leading Optimistic rollups...For more on L2s, Delphi members can read our Delphi Pro report on ZK Rollups here!...Chart of The Day: Arbitrum vs Optimism Arbitrum and Optimism are the two leading Optimistic rollups for...

This is a Snippet from “Solana the Modular” MagicBlock, instead of building a general purpose rollup,...is extending execution using ephemeral rollups....Using PDAs, the execution for accounts can be delegated to an Ephemeral rollup which could have its own...Validators are hyper-specialised and run the Ephemeral rollups. They are co-located near users.

We can view finality in ZK-Rollups as a spectrum.

This offers orders of magnitude cheaper alternative way for rollups to secure their data....Namely, an Ethereum-settled rollup, instead of paying expensive Etheruem gas for DA, can now use Celestia...Instead of rollups relying purely on Ethereum, they will now be relying on attestations of Celestia validators...

...its advantages, such as amortizing the cost of engineering and providing a competitive experience for rollup...The landscape of optimistic rollups versus ZK rollups is constantly evolving, with ZK technology progressing...Astria’s go-to-market strategy involves vertically integrating and building their own rollups on top...

Can a rollup be Ethereum aligned if it uses Solana as a shared sequencer?...Once executed, confirmations are sent to rollup indexers and the rollup state is advanced....It creates two orders: a buy order on Rollup 1, where the price is lower, and a sell order on Rollup...

Layer two solutions such as optimistic and zero-knowledge rollups promise reduced latency and cost, but...

Despite this common belief, I posit the opposite stance: the future is brighter than ever, and being optimistic...are reading this now proves that such pessimism is almost always wrong, and those who bet smartly on optimistic...People often conflate optimism with dreamers who are soft, idealistic, or even delusional, as if optimists...