{
  "version": 1,
  "type": "beacon_anchor",
  "timestamp_utc": "2026-09-09T14:40:19Z",
  "seq": 69,
  "head_sha256": "fb35e9fc45cbea691027ea28d64c6b362b7231751c9de3b7a1304cc2dbcd77cd",
  "log_sha256": "f9bd1c8da863c18189485f4a7c27ee8ea59492895832523bcc7f8af76d4bec2d",
  "note": "signed chain head; third parties pin this hash to detect log tampering"
}