{
  "dataset": "state-of-the-agentic-web",
  "record": {
    "id": "mpp-announced",
    "metric": "Machine Payments Protocol announced (Stripe + Tempo)",
    "metric_family": "protocol-maturity",
    "measures_pillar": "/protocols",
    "entity_measured": "MPP",
    "value": "2026-03-18",
    "unit": "announcement date",
    "date": "2026-03",
    "period": "2026-Q2",
    "figure_kind": "cited",
    "source": "https://stripe.com/blog/machine-payments-protocol",
    "trend": "new",
    "last_verified": "2026-06-15"
  }
}