Vectiq Field Books & Traceability
Accounting, invoices, treasury and yield tracking sharing one record with the operational log - and a batch history the buyer can verify on chain

Overview
The value here is not a ledger; anyone can buy a ledger. It is that the ledger and the field log are the same record. The harvest figure in the accounting report is the figure that was weighed, the input cost attached to a block is the input that was actually applied there, and the treatment behind a traceability claim is the one a worker logged that morning rather than a reconstruction typed in at export time.
Batches are anchored on chain with smart contracts for supply agreements and looked up by the end buyer through a QR code. Worth being precise about what that buys: blockchain does not make the data true, it makes it tamper-evident afterwards - which is only worth anything because the record it anchors came out of daily operations.