Blockchains are immutable record keepers, storing information about every transaction ever recorded. However, this attribute comes at a cost: as more and more transactions occur, so does the size of the record expands. In turn, the hardware requirements for running a node increase which ultimately affects decentralization. Another aspect frequently criticized is how transactions are being processed by legacy blockchains in terms of speed. For both of these aspects there is a cryptographic solution that addresses scalability: zero knowledge proofs (ZKPs). These allow one entity (prover) to prove to another entity (verifier) that a statement is true, without revealing any additional information about the process or data involved. When applied to blockchains, ZKPs improve scalability and privacy by certifying that state transitions occurred, without the need to relay the underlying information. In Part 1 of this 2-part episode, we were joined by Anna Rose, host of Zero Knowledge Podcast and founder of ZK Summit, ZK Validator and ZK Hack, and Kobi Gurkan, Head of Research at Geometry, to discuss the state of the ZK ecosystem and how this promising technology is evolving. Topics covered in this episode: Anna’s background & her involvement in the ZK ecosystemKobi’s background in cryptographyTrusted setups, a brief history: Plumo & AztecZK Hack(athon)The State of the ZK ecosystemHow the ZK landscape evolved: from SNARKs to STARKsTrade-offs: compatibility, security, performanceAztec & Noir DSLThe need for performance benchmarksZK L1s: Zcash, Mina, AleoEpisode links: Zero Knowledge Podcast on TwitterZero Knowledge Podcast on YouTubeThe paper Kobi mentioned (by Ariel Gabizon)Anna Rose on TwitterKobi Gurkan on TwitterSponsors: Omni: Access all of Web3 in one easy-to-use wallet! Earn and manage assets at once with Omni's built-in staking, yield vaults, bridges, swaps and NFT support. https://omni.app/ -This episode is hosted by Friederike Ernst. Show notes and listening options: epicenter.tv/476

As crypto adoption increases, so does the pressing need for blockchain scalability. Monolithic blockchains provide data availability, consensus and execution on a single, base layer, which makes scaling them a difficult endeavour. Multiple layer-2 (L2) scaling solutions have been proposed to address computation and/or data availability, but they reach the same design bottlenecks: limited bandwidth, account state models, sequential transaction processing, etc. Modular blockchains separate the core functionalities, redesigning them as customisable building blocks. This allows for greater flexibility and scalability, adapting blockchain structure to its intended function. We were joined by Nick Dodson, CEO and co-founder of Fuel Labs, to discuss modular execution layers and how they approach different aspects of blockchain design and scalability. Topics covered in this episode: Nick’s background and founding Fuel LabsWhy most blockchain designs are not scalableThe vision behind Fuel Labs’ modular execution layerThe difference between L2 roll-ups and modular execution layersBlockchain design philosophies and integrationsUTXO and multi-thread parallel transactionsUTXO vs. account model systemsFuel Labs’ own virtual machine (VM)Multiple native assets supportDeveloper experience switching to Sway DSLBridging to a settlement layer and interoperabilityBuilding on FuelEpisode links: Fuel LabsFuel Labs on TwitterNick on TwitterSponsors: Omni: Access all of Web3 in one easy-to-use wallet! Earn and manage assets at once with Omni's built-in staking, yield vaults, bridges, swaps and NFT support. https://omni.app/ -This episode is hosted by Friederike Ernst & Sebastien Couture. Show notes and listening options: epicenter.tv/474