According to @binance, data availability is the guarantee that blockchain transaction data is published so nodes and users can access and verify it, a prerequisite for secure validation and scaling. Source: https://www.binance.com/en/academy/articles/what-is-data-availability The source outlines key approaches including on-chain data publication, off-chain data availability committees with attestations, erasure coding, and data availability sampling that let light clients verify data presence without downloading full datasets. Source: https://www.binance.com/en/academy/articles/what-is-data-availability The article explains that stronger data availability reduces verification costs and boosts throughput for scaling solutions like rollups, directly affecting fee levels and network performance. Source: https://www.binance.com/en/academy/articles/what-is-data-availability Binance notes that each approach entails trade-offs in cost, security, and decentralization that determine the scalability profile of a blockchain or layer-2 stack. Source: https://www.binance.com/en/academy/articles/what-is-data-availability

According to the source, Vitalik Buterin said Ethereum is nearing a turning point with PeerDAS data availability sampling now live and zkEVMs in the alpha stage, describing a fundamentally new decentralized network design that can solve the blockchain trilemma. Source: Vitalik Buterin public statement, Jan 2026. For trading, these scaling milestones indicate lower data costs for Layer 2 rollups and higher throughput, dynamics that previously coincided with fee compression and increased L2 activity after the Dencun upgrade introduced EIP-4844. Source: Ethereum Foundation Dencun upgrade announcement, Mar 2024; Vitalik Buterin public statement, Jan 2026. Traders should monitor ETH spot and perpetual funding, L2 transaction counts, rollup fees, and gas consumption across zkEVM ecosystems as the market prices in the Ethereum scaling roadmap with PeerDAS. Source: Vitalik Buterin public statement, Jan 2026.

According to @binance, data availability is the requirement that transaction data be published so network participants can verify blocks, preventing data withholding attacks that would break security for rollups and L2s, source: Binance Academy. @binance explains that techniques such as data availability sampling and erasure coding allow light clients to check that data is available with high probability while keeping costs manageable, source: Binance Academy. @binance notes that when data availability becomes cheaper and more scalable, rollups can reduce the cost of posting data, which translates into lower L2 transaction fees, source: Binance Academy. @binance also outlines that modular architectures separate execution from data availability and that major ecosystems, including Ethereum with dedicated blob space for rollups, are evolving to improve data throughput for verifiable storage, source: Binance Academy.

According to @VitalikButerin, PeerDAS is live on Ethereum mainnet and ZK-EVMs are at alpha with production-quality performance while safety work remains, positioning Ethereum for decentralized consensus with high bandwidth. Source: Vitalik Buterin on X, Jan 3, 2026 https://twitter.com/VitalikButerin/status/2007559523528233041 He states this combination effectively solves the scalability trilemma in practice, with data availability sampling live today and ZK-EVM performance production-quality, and outlines a rollout: 2026 non-ZK-EVM-dependent gas limit increases via BALs and ePBS and first opportunities to run a ZK-EVM node; 2026–28 gas repricings, state structure changes, and exec payloads moving into blobs; 2027–30 further large gas limit increases as ZK-EVM becomes the primary block validation method. Source: Vitalik Buterin on X, Jan 3, 2026 https://twitter.com/VitalikButerin/status/2007559523528233041 He emphasizes distributed block building as a third pillar, aiming for blocks never being constituted in one place and advocating in-protocol channels such as expanded FOCIL or out-of-protocol distributed builder marketplaces to reduce centralized interference and improve geographic fairness in transaction inclusion. Source: Vitalik Buterin on X, Jan 3, 2026 https://twitter.com/VitalikButerin/status/2007559523528233041 He notes this is the culmination of a decade of work from early data availability sampling research and that ZK-EVM efforts began around 2020, referencing his original note on data availability and erasure coding. Sources: Vitalik Buterin on X, Jan 3, 2026 https://twitter.com/VitalikButerin/status/2007559523528233041; Ethereum Research Wiki GitHub https://github.com/ethereum/research/wiki/A-note-on-data-availability-and-erasure-coding/52e1d03b0254cded8b67105be17ba9890b7ad8d3 For traders, the key on-chain milestones to track per the stated roadmap are the 2026 gas limit increases, the 2026–28 gas repricings and state changes, and the 2027–30 shift toward ZK-EVM-based validation and distributed block building. Source: Vitalik Buterin on X, Jan 3, 2026 https://twitter.com/VitalikButerin/status/2007559523528233041

According to the source, Vitalik Buterin said a proposal called Fusaka will address Ethereum’s blob usage issues and emphasized a safety‑first rollout using PeerDAS so nodes can verify data availability without downloading full blocks; source: the provided social media post dated Sep 25, 2025. PeerDAS enables probabilistic data availability checks by light clients and is designed to increase data throughput for rollups, which the Ethereum Foundation links to lower L2 data costs via the EIP‑4844 blobs rationale; source: Ethereum Research forum discussions on PeerDAS (2023–2024) and Ethereum Foundation EIP‑4844 specification and rationale.

According to @VitalikButerin, Fusaka prioritizes safety and centers on PeerDAS to enable a live blockchain where no single node must download full block data, a design aimed at robust data availability for scaling. source: Vitalik Buterin on X, Sep 24, 2025. He explained that PeerDAS has each node request a small number of chunks to probabilistically verify that more than 50 percent of chunks are available, after which nodes can download those chunks and use erasure coding to recover the rest. source: Vitalik Buterin on X, Sep 24, 2025. In the first version, full block data must still exist in one place for initial broadcasting and for reconstruction when a publisher releases between 50 percent and less than 100 percent of a block, but these roles are untrusted and require only one honest actor to succeed even if many are dishonest. source: Vitalik Buterin on X, Sep 24, 2025. He added that future cell-level messaging and distributed block building will distribute even these remaining functions. source: Vitalik Buterin on X, Sep 24, 2025. Core developers will be highly cautious on testing, and the blob count will increase conservatively at first before becoming more aggressive over time. source: Vitalik Buterin on X, Sep 24, 2025. He stated PeerDAS is key to L2 scaling and eventually L1 scaling once the L1 gas limit is high enough to place L1 execution data into blobs, framing Fusaka and PeerDAS as central to Ethereum’s scaling roadmap. source: Vitalik Buterin on X, Sep 24, 2025.