Why ZK rollups need data availability - Polygon co-founder

Zero cognition proofs person been hailed arsenic a large advancement for blockchain exertion but the efficacy of these protocols volition necessitate streamlined information availability solutions to unlock their afloat potential.

Anurag Arjun, co-founder of Polygon and blockchain information availability protocol Avail, highlighted the value of information availability for ZK rollups successful an interrogation with Cointelegraph.

ZK rollups are a furniture 2 blockchain scaling solution for blockchain networks allowing transactions to beryllium batched and submitted to a furniture 1 blockchain with the proviso of a cryptographic proof. ZK proofs purpose to supply faster and much businesslike transaction processing portion maintaining the information of a blockchain system. 

As Ethereum continues connected its roadmap pursuing its displacement to proof-of-stake aft the Merge, information availability is acceptable to go an important origin successful an expanding dependence connected rollup scaling protocols for transaction batching and verification.

Arjun, who’s spearheading Avail’s maturation pursuing the platform’s rotation disconnected from Polygon Labs, said that basal furniture blockchain protocols of the aboriginal volition person to optimize information availability for proofs, verifications and settlements alternatively than execution.

“If the execution is being scaled by furniture 2s oregon rollups, the basal furniture past doesn't person to interest astir execution. They present person to optimize connected things that they are utilized for, which is information availability.”

The modulation sees blockchain exertion moving from a ‘monolithic benignant of blockchain architecture’ to much modular setups similar that of Avail, which provides infrastructure for zk rollups and different off-chain scaling solutions.

Related: Polygon’s ‘holy grail’ Ethereum-scaling zkEVM beta hits mainnet 

Arjun said that zk proofs are under-appreciated fixed that they person removed the request for crypto economical assumptions successful blockchain systems:

“It changes the full landscape, you nary longer request these precise dense execution engines oregon validator tally systems due to the fact that you person ZKs that supply implicit execution impervious guarantee. The lone different happening that you necessitate is information availability.”

The value of information availability for zk proofs is tied to the quality of the technology, which fundamentally provides impervious of a transaction oregon web authorities without revealing the information itself.

“That's wherefore it's named a validity proof, it does not springiness immoderate denotation of what the information is like.”

Providing a protocol that handles information availability besides addresses the existent costs associated with submitting zk rollups and optimistic rollups to the Ethereum blockchain for example. 

As Arjun explained, rollups look 2 superior costs successful submitting transaction information and impervious data, with up to 70 percent of today’s costs spent connected storing transaction information connected Ethereum. Transaction information submission costs and impervious verification costs could beryllium reduced importantly by utilizing a basal furniture information availability protocol.

Arjun added that proofs and information spell manus successful manus contempt the information that ZKs supply verifiable mathematical proofs oregon ‘absolute execution impervious guarantee’ connected concatenation without revealing information oregon the information needing to beryllium verified. 

Magazine: Here’s however Ethereum’s ZK-rollups tin go interoperable