Every ledger row hashes into a daily root; every root chains to the last and lands on Solana. The institution can no longer rewrite its own history. Shipped, running, under a cent a day.
- Triple entry. Debit, credit, and a third entry no bookkeeper can touch: sha256(prev_root + merkle_root + day), anchored as a Solana memo transaction.
- One transaction commits all history. Each day’s root contains the day before it, so the newest anchor seals everything behind it.
- Public verification. Anyone can request any entry’s Merkle path and check it against the chain. No account. No permission. No trust.
- Only hashes leave the building. Never customer data.
GATE
Founder approval. PASSED. First anchor finalized 2026-08-29, block 442678226.