Request for Grant Proposals: Application State Migration

[ewynx]

Hi team! This is HashCloak’s proposal:

Grant Proposal: Application State Migration | HashCloak

Summary This proposal aims for a prototype of on-chain self-migration. After upgrading rollup A to rollup B, users can prove they had certain private notes at rollup A and those notes get added on rollup B. The only thing we trust from the old rollup (A) is the latest archive root on L1. Following Mike’s and Palla’s suggestion we’ll make use of a migration key embedded in the salt of the contract addresses on both versions of the rollup. The private notes of a user are added on rollup B if they…

Note that posts can’t tag state-migration as the tag doesn’t exist, so it’s only tagged rfgp.