Native L1 blobspace, sampled since Fusaka, pruned after about 18 days. Strongest on verifiable published cost per MB (9/10): Blob pricing is a protocol rule in EIP-4844 and EIP-7918, reproducible to the wei from any block header. At the 22 October 2026 median it is about $0.0116 per MiB, with a same-day range of $0.0048 to $0.0355, because blobs trade on a spot fee market. Weakest on sampling live + how long data stays retrievable (8/10): PeerDAS (EIP-7594) is live on mainnet since December 2025: nodes sample and custody columns instead of downloading every blob. Blob data is kept for 4,096 epochs, about 18 days, then pruned; after that a rollup depends on archives or its own copies. Published price: EIP-4844 (Final, fetched 22 October 2026): GAS_PER_BLOB 2**17 (131,072); MIN_BASE_FEE_PER_BLOB_GAS 1.
Data Availability Layers
Data Availability Layers evaluated across a verifiable published cost per MB, what actually secures the data, live sampling and how long data stays retrievable, and the blast radius if it halts, with documented uptime.
Ranked here: data availability layers that secure a rollup's data and keep it retrievable, for anyone moving that data off Ethereum to cut costs. Not ranked here: products that are not data availability layers for rollup data moved off Ethereum.
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How this page is reviewed
Reviewed means every product ranked on this page was read against its sources on or after that date; every ranked category is re-read at least every 45 days. Models research, extract and parse. A deterministic engine ranks. Every quote passes an adversarial refute pass.
Accountable for this review: Mathias Siemonsmeier, Founder.
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Ranked on 4 published criteria weighted 30/30/25/15, which set goal alignment — 30 of the 86 points. The rest: regional access 20 (constant here), evidence depth 18 (constant here), ease of use 10 (constant here), institutional trust 8 (constant here). Profile match is shown in breakdowns but carries no weight.
- Verification failure: an invalid state or transfer is accepted.Scored by What actually secures the data · 30% (Ethereum Blobs (EIP-4844 / PeerDAS) 9/10, Ethereum L1 Calldata 10/10, Celestia 6/10)Scored by Sampling live + how long data stays retrievable · 25% (Ethereum Blobs (EIP-4844 / PeerDAS) 8/10, Ethereum L1 Calldata 6/10, Celestia 6/10)
- Liveness failure: the operator stops, censors you or loses data.Scored by Blast radius if it halts + documented uptime · 15% (Ethereum Blobs (EIP-4844 / PeerDAS) 9/10, Ethereum L1 Calldata 10/10, Celestia 7/10)
What matters most before choosing in this category
Weighted on verifiable published cost per MB (30), what actually secures the data (30), live sampling and how long data stays retrievable (25), and the blast radius if it halts, with documented uptime (15). The heaviest is verifiable published cost per MB: Can a buyer read a real price per MB off a public page or on-chain parameter today, and what is it when converted to USD at spot?
The #1 overall and the scoring weights
How this category is reviewed
Reviewed on published cost per MB, what actually secures the data, sampling and retention, and blast radius if the layer halts.