A ZK-rollup can use Walrus to store its validity proofs or associated data blobs, then rely on WAL-backed availability guarantees to certify that this data remains accessible. Instead of posting full proofs on-chain, the rollup posts cryptographic references that point to data stored in Walrus.
WAL is used to pay for and enforce these storage commitments. Availability proofs generated by Walrus nodes allow the rollup to demonstrate that its proofs are not only valid, but also retrievable. This separation reduces on-chain costs while preserving trust, making WAL part of the rollup’s operational security rather than just a fee token.@Walrus 🦭/acc #walrus $WAL