Every source, one intake, one ledger — and the two junctions that keep the record honest.
Flow diagram, 8 flows. Ledger to Reports: 58; Ledger to Exports: 34; Sensors to The weir: 55; The weir to Ledger: 78; The weir to Rulings: 14; Crew reports to The weir: 25; Lab assays to The weir: 12; Rulings to Ledger: 14.
01One weir, every source
Everything crosses the same intake, so duplicates die at the gate and provenance survives it.
02Conflicts take the side channel
Disagreeing readings divert through rulings — signed, dated, and merged back with both readings kept.
03Nothing leaves without lineage
Reports and exports draw from the ledger alone, so every number can point back to its row.