{
 "rule": "sma-50-volcap",
 "method": "hash = sha256(prev_hash + payload). Payloads are published 7 days after issue; recompute each hash to verify nothing was changed.",
 "rows": [
  {
   "day": "2026-09-24",
   "issued_at": "2026-09-25T00:07:35.247Z",
   "late": false,
   "prev_hash": "genesis",
   "hash": "d2e2850bc0e4ccf90218ccc527ff97e949dd8ac1dabffef3d26ccc06997faab2",
   "payload": null
  },
  {
   "day": "2026-09-25",
   "issued_at": "2026-09-26T00:07:41.882Z",
   "late": false,
   "prev_hash": "d2e2850bc0e4ccf90218ccc527ff97e949dd8ac1dabffef3d26ccc06997faab2",
   "hash": "f5029997d33529a1ad5cafa2e87c8ab286182f49c01672a71b4cbdb14983735c",
   "payload": null
  }
 ]
}