Two-thirds of EIP-8347's preimage file is dormant storage
· 5 min read
EIP-8347 changed one file format on August 20. The new format is brutally easy to size: 24 bytes per account, then 32 bytes per live storage slot. Point that arithmetic at mainnet on August 19 and the file comes out at 62.25 GB.
Roughly 40.7 GB of it maps to slot keys that had not been read or written in twelve months.