# Ground: Verified datasets

> Daily on-chain datasets read from contract state, published with a receipt for every row.

Markdown copy of https://voltfincrypto.com/products/ground

## One source of truth for on-chain data.

Ground reads each token's supply from contract state at the last block of every UTC day, on every covered chain, and publishes it as a versioned dataset with a receipt for every row.

- **Read from the chain.** Values come from contract calls pinned to a block, not from a third party's API.
- **Versioned snapshots.** Each publication is a fixed version, so a board or report always names the data it read.
- **Missing means missing.** A value that could not be read is shown as missing, never as zero or a partial sum.