Native L1 blobspace, sampled since Fusaka, pruned after about 18 days. Strongest on published cost per mb (verifiable, not negotiated) (9/10): The most machine-readable price in this pool, a protocol parameter with no vendor in the loop: over blocks 25,982,517-25,983,541 on 2026-09-15 the blob base fee had a median of 5,748,814 wei per blob gas = $0.0145/MiB, and each block's value is reproducible from its excessBlobGas (block 25,983,538: 210,133,829, giving 64,599,554 wei = $0.163/MiB during a fee spike). No account, no deposit, no negotiation. Weakest on sampling live + how long data stays retrievable (8/10): PeerDAS went live with Fusaka on 3 December 2025, with 'each full node holding only 1/8th of the data'; blob capacity now target 14 / max 21 per block after BPO2 on 7 January 2026. Retention is capped: MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS = 4096, 'which is around 18 days'.
Data Availability Layers
Data Availability Layers evaluated across verifiable published cost per MB, what actually secures the data, sampling live + how long data stays retrievable, and blast radius if it halts + documented uptime.
Ranked on 4 published criteria weighted 30/30/25/15, which set goal alignment — 30 of the 86 points. The rest: regional access 20, evidence depth 18, ease of use 10, institutional trust 8. Profile match is shown in breakdowns but carries no weight.
What matters most before choosing in this category
Weighted on verifiable published cost per MB (30), what actually secures the data (30), sampling live + how long data stays retrievable (25), and blast radius if it halts + 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?
Weighted on verifiable published cost per MB (30), what actually secures the data (30), sampling live + how long data stays retrievable (25), and blast radius if it halts + 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?
Expert review and 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.