"Keep the result and its evidence together" is the part ML Systems built first, and it shaped the whole ontology. Our domain is a house, not a customer base, but the safeguard is the same: every entry on the ledger is a claim, not a value. Who made it, at what evidence grade (measured 90, sensed 85, stated 80, record 70, modeled 60), and which one stands. A model's claim enters as modeled, the lowest grade; it can be confirmed only if an independent party agrees, and only the Custodian stamps. What we got wrong was the list of who may claim at all: six names, and the four agent minds owning finance, deconstruction, build and market were not on it, so "find meaning and act" had nowhere to land for those phases. Fix proposed, not shipped: claimants without seats. A mind may claim; it may never ground. The write-up is "Seven Families, One Ledger" on my DEV profile (salparvez).