{
 "note": "USDT machine-payment rail watch \u2014 monthly first-party probe. Protocol-agnostic: counts EIP-3009 authorization settlements on Tether rails (Plasma/Stable, USDT0) regardless of protocol branding; raw transfer volume is context, not census. History is append-only and never backfilled.",
 "updated_at": "2026-11-07 03:18 UTC",
 "history": [
  {
   "probed_at": "2026-11-07 03:18 UTC",
   "plasma": {
    "chain_tx_per_min": 393,
    "usdt0_txs": 177,
    "methods": {
     "transfer": 171,
     "approve": 4,
     "transferFrom": 2
    },
    "eip3009_auth_settlements": 0
   },
   "stable": {
    "chain_tx_per_min": 87,
    "usdt0_txs": 0,
    "methods": {},
    "eip3009_auth_settlements": 0
   },
   "facilitator_x402_semanticpay_io": "HTTP Err",
   "eip3009_auth_total": 0,
   "verdict": "dormant \u2014 rails alive, machine-payment settlements zero"
  }
 ]
}