{
  "id": null,
  "title": "StellaOps Findings Ledger",
  "timezone": "utc",
  "schemaVersion": 39,
  "version": 1,
  "refresh": "30s",
  "tags": ["ledger", "findings", "stellaops"],
  "panels": [
    {
      "type": "timeseries",
      "title": "Ledger Write Latency (P50/P95)",
      "gridPos": { "h": 8, "w": 12, "x": 0, "y": 0 },
      "targets": [
        { "expr": "histogram_quantile(0.5, sum(rate(ledger_write_latency_seconds_bucket{tenant=\"$tenant\"}[5m])) by (le))", "legendFormat": "p50" },
        { "expr": "histogram_quantile(0.95, sum(rate(ledger_write_latency_seconds_bucket{tenant=\"$tenant\"}[5m])) by (le))", "legendFormat": "p95" }
      ],
      "fieldConfig": { "defaults": { "unit": "s" } }
    },
    {
      "type": "timeseries",
      "title": "Write Throughput",
      "gridPos": { "h": 8, "w": 12, "x": 12, "y": 0 },
      "targets": [
        { "expr": "sum(rate(ledger_events_total{tenant=\"$tenant\"}[5m])) by (event_type)", "legendFormat": "{{event_type}}" }
      ],
      "fieldConfig": { "defaults": { "unit": "ops" } }
    },
    {
      "type": "timeseries",
      "title": "Projection Lag",
      "gridPos": { "h": 8, "w": 12, "x": 0, "y": 8 },
      "targets": [
        { "expr": "max(ledger_projection_lag_seconds{tenant=\"$tenant\"})", "legendFormat": "lag" }
      ],
      "fieldConfig": { "defaults": { "unit": "s" } }
    },
    {
      "type": "timeseries",
      "title": "Merkle Anchor Duration",
      "gridPos": { "h": 8, "w": 12, "x": 12, "y": 8 },
      "targets": [
        { "expr": "histogram_quantile(0.95, sum(rate(ledger_merkle_anchor_duration_seconds_bucket{tenant=\"$tenant\"}[5m])) by (le))", "legendFormat": "p95" }
      ],
      "fieldConfig": { "defaults": { "unit": "s" } }
    },
    {
      "type": "stat",
      "title": "Merkle Anchor Failures (5m)",
      "gridPos": { "h": 4, "w": 6, "x": 0, "y": 16 },
      "targets": [
        { "expr": "sum(rate(ledger_merkle_anchor_failures_total{tenant=\"$tenant\"}[5m]))", "legendFormat": "fail/s" }
      ],
      "options": { "reduceOptions": { "calcs": ["lastNotNull"] } }
    },
    {
      "type": "stat",
      "title": "Attachment Failures (5m)",
      "gridPos": { "h": 4, "w": 6, "x": 6, "y": 16 },
      "targets": [
        { "expr": "sum(rate(ledger_attachments_encryption_failures_total{tenant=\"$tenant\"}[5m])) by (stage)", "legendFormat": "{{stage}}" }
      ],
      "options": { "reduceOptions": { "calcs": ["lastNotNull"] } }
    },
    {
      "type": "stat",
      "title": "Ledger Backlog",
      "gridPos": { "h": 4, "w": 6, "x": 12, "y": 16 },
      "targets": [
        { "expr": "sum(ledger_ingest_backlog_events{tenant=\"$tenant\"})", "legendFormat": "events" }
      ]
    }
  ],
  "templating": {
    "list": [
      {
        "name": "tenant",
        "type": "query",
        "label": "Tenant",
        "datasource": null,
        "query": "label_values(ledger_events_total, tenant)",
        "refresh": 1,
        "multi": false,
        "includeAll": false
      }
    ]
  },
  "annotations": { "list": [] },
  "time": { "from": "now-6h", "to": "now" },
  "timepicker": { "refresh_intervals": ["30s", "1m", "5m", "15m", "1h"] }
}