{
  "measuredAt": "2026-09-15T21:15:54.814Z",
  "network": "base",
  "chainId": 8453,
  "window": {
    "from": "2026-09-15T15:00:00.000Z",
    "until": "2026-09-15T16:00:00.000Z",
    "seconds": 3600,
    "startBlock": 51347527,
    "endBlock": 51349326,
    "boundaryBlocks": [
      {
        "number": 51347526,
        "hash": "0x3f2f1d06b55ab4638904414eebf542a6c7f1d8c0df5a972d163ec8464d70a001",
        "timestamp": 1789484399
      },
      {
        "number": 51347527,
        "hash": "0xc0b273197e8fc245e91459fb2e3227913ab5219322134703868281351796cc2b",
        "timestamp": 1789484401
      },
      {
        "number": 51349326,
        "hash": "0x88176e0ea544eab9407d6a830785857be9ecd914d22177c1a44979cb0d9850c3",
        "timestamp": 1789487999
      },
      {
        "number": 51349327,
        "hash": "0xd3e8e2c80465c6929c3ded991fb89af1081772bd54ae9e665476a3cbecb7e740",
        "timestamp": 1789488001
      }
    ]
  },
  "method": "Complete historical UTC hour, finalized Firehose streams with identical block hashes and complete matching receipt-log fingerprints. Uncompressed sf.firehose.v2.Response protobuf payload bytes, measured after gRPC decompression, match the uncompressed basis used for Firehose billing. Also retain raw Block protobuf bytes and actual server gzip payload bytes separately. Excludes gRPC frame envelope, HTTP/2, TLS and network overhead; not a latency or invoice-total measurement. No extrapolation.",
  "byteBasis": "uncompressed-protobuf-response",
  "fullProtobufBytes": 5834739175,
  "fullBlockBytes": 5833933139,
  "fullGzipBytes": 1108267080,
  "blockCount": 1800,
  "stablecoins": {
    "USDC": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913"
  },
  "comparisons": {
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      "filter": {
        "addresses": [],
        "topics": [
          "0xd78ad95fa46c994b6551d0da85fc275fe613ce37657fb8d5e3d130840159d822",
          "0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67",
          "0x40e9cecb9f5f1f1c5b9c97dec2917b7ee92e57ba5563708daca94dd84ad7112f"
        ],
        "sendAllBlockHeaders": true
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      "measuredAt": "2026-09-15T21:14:26.420Z",
      "matchingLogsByTopic": {
        "0xd78ad95fa46c994b6551d0da85fc275fe613ce37657fb8d5e3d130840159d822": 5199,
        "0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67": 56087,
        "0x40e9cecb9f5f1f1c5b9c97dec2917b7ee92e57ba5563708daca94dd84ad7112f": 24892
      },
      "filteredProtobufBytes": 1968021383,
      "filteredBlockBytes": 1967218323,
      "filteredGzipBytes": 348359563,
      "matchingLogs": 86178,
      "matchedBlocks": 1800,
      "allMatchingLogsRetained": true,
      "evidence": "base-swaps-hour.ndjson.gz",
      "evidenceSha256": "4220e5129b3848ed0e5bab558e51ed31f7b7b29f3bf2fa4999c8de5aeac2540d"
    },
    "transfers": {
      "filter": {
        "addresses": [],
        "topics": [
          "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
        ],
        "sendAllBlockHeaders": true
      },
      "measuredAt": "2026-09-15T21:14:58.583Z",
      "matchingLogsByTopic": {
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": 538837
      },
      "filteredProtobufBytes": 4438786947,
      "filteredBlockBytes": 4437981961,
      "filteredGzipBytes": 796385987,
      "matchingLogs": 538837,
      "matchedBlocks": 1800,
      "allMatchingLogsRetained": true,
      "evidence": "base-transfers-hour.ndjson.gz",
      "evidenceSha256": "19e2338210bd431c59a1a510557080af45f314be58d8e83116b6f3d52f4e29c1"
    },
    "stable": {
      "filter": {
        "addresses": [
          "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913"
        ],
        "topics": [
          "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
        ],
        "sendAllBlockHeaders": true
      },
      "measuredAt": "2026-09-15T21:15:54.813Z",
      "matchingLogsByTopic": {
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": 179870
      },
      "filteredProtobufBytes": 3267737079,
      "filteredBlockBytes": 3266933343,
      "filteredGzipBytes": 578998038,
      "matchingLogs": 179870,
      "matchedBlocks": 1800,
      "allMatchingLogsRetained": true,
      "evidence": "base-stable-hour.ndjson.gz",
      "evidenceSha256": "36572626fc29de619265167cc9cfd6590774566b975e13a0b961220788e17106"
    }
  }
}