London-based startup Herodotus has introduced a developer tool called “on-chain accumulator," allowing users to read and verify data from any point in Ethereum’s history using a cryptographic method known as “storage proofs.”

Developed in collaboration with StarkWare, a company focused on scalability solutions, the technology aims to overcome a current limitation in Ethereum that only validates the last 256 blockhashes.

“Suddenly, everyone will be able to access whatever they want from parts of Ethereum’s history — and, very soon, will be able to go however far back they want,” said Kacper Koziol, co-founder of Herodotus. “It’s an innovation that is sorely needed to bring Ethereum in line with the principles of transparency and accessibility that are so central in blockchain …