Evidence row 125941

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.dailyelo.com/v1/rpc/health"
    ]
  ],
  "name": "base-rpc-health-map",
  "owner_address": "0xd617a7145ca56e3ed58d639f9dec6999b22441ee",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xD617a7145ca56E3ed58d639F9DEC6999B22441eE",
        "scheme": "exact"
      }
    ],
    "description": "Which Base public RPCs serve a stale chain tip. Every 30s we ask all major public RPCs for eth_blockNumber in parallel and record how many blocks behind the fastest peer each was, plus latency and error rate. An RPC never reports its own lag, so an agent reading a balance from a lagging endpoint cannot tell. Omit ?rpc for the full map; ?rpc=<host> for one.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "rpc": "https://mainnet.base.org"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "endpoints": [
                {
                  "behind_1plus_rate": 0.03,
                  "error": 2,
                  "error_rate": 0.0007,
                  "height_behind": {
                    "max": 2,
                    "p50": 0,
                    "p90": 0,
                    "p99": 1,
                    "samples": 2878
                  },
                  "latency_ms": {
                    "max": 5053,
                    "p50": 88,
                    "p90": 135,
                    "p99": 232,
                    "samples": 2878
                  },
                  "ok": 2878,
                  "probes": 2880,
                  "rpc": "https://base-rpc.publicnode.com",
                  "stale": 0
                }
              ],
              "network": "eip155:8453",
              "schema": "rpchealth/v1",
              "updated_at": 1719500000,
              "window": {
                "endpoints_compared": 10,
                "hours": 24,
                "probe_interval_s": 30,
                "probe_rounds": 2880
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "description": "Which Base RPC endpoints are serving a stale chain tip right now. Every 30s we ask all major public RPCs for eth_blockNumber in parallel (same instant) and record how many blocks behind the fastest peer each one was, plus latency and error rate. Omit ?rpc for the full map; pass ?rpc=<url|hostname> to look up one endpoint. Measurements only, no recommendation.",
                  "properties": {
                    "rpc": {
                      "description": "optional: RPC url or hostname to look up (omit for the full map)",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-22T22:43:30.566Z",
    "quality": {
      "l30DaysTotalCalls": 7,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-22T22:43:30.381Z"
    },
    "resource": "https://x402.dailyelo.com/v1/rpc/health",
    "serviceName": "base-rpc-health-map",
    "tags": [
      "rpc",
      "infra",
      "base",
      "monitoring",
      "latency"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Which Base public RPCs serve a stale chain tip. Every 30s we ask all major public RPCs for eth_blockNumber in parallel and record how many blocks behind the fastest peer each was, plus latency and error rate. An RPC never reports its own lag, so an agent reading a balance from a lagging endpoint cannot tell. Omit ?rpc for the full map; ?rpc=<host> for one."
}

What the leaf hashes

{"body":"18f7fbe234159a5fb91aff7083526cc33ac791a2076f8a666885f31fd96a82e1","id":125941,"kind":"listing","method":"baseline/1","observed_us":1793025627056839,"prev":null,"subject":"x402_bazaar:https://x402.dailyelo.com/v1/rpc/health","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x7ae81e64402f49fe0a5cb888295afde184e6f9e98ece3f70036cb679bbfbb185
2. 0x2bedad4817988dc6e67aec994255ce02d289fdf51dbbb8d2e78d26ca1f8ba298
3. 0x9c045d236531883ce2622313ee0bbf037367b99420b4348534e3a2d89752403d
4. 0x7ca26de7d5e031b65c0ac9f9f36f06a9b237f249aabacafbd86324b2a3a24d55
5. 0x2c9d61ac54d3e95302aae5a372514afed2ebbf7be5928d3fb82585dd07672146
6. 0x1ceecba5a7fe3b48e410c2f62b33e550bd33ca042bfa6c40261d44eb16829bca
7. 0xed047e5390dc9ffb72b536f8b5fb752949a85eaf6728b5fff81b9da73d660515
8. 0x08f720718f17fa6fdc02f7e826b645882866efd292fb9bc1be7fe5cdd9b2e803
9. 0x8538b668ed58b72cabc6b99d60f85a3ea2176e1d3ec947794899400b5f19d061
10. 0x227b1846e9338d14a584d945977a59dd6a05f2e84a33212202400515ac9c0632
11. 0xe7152aaccc7d7d5da2d13bc6ee8ec470b8c1a5abe7dfed1431f0ed53ec50ebc5
12. 0xa6406b1a5540d26e0cbd03bb274a01c10968fadb17913a6043bb9427ddfb71ba
13. 0x01c95624b1f2385ef774ee258a9ae58a4df07a1bdaa829de84e1d5201f3f39c2
14. 0x7721d38652b6444b18e1193824e50490ade04851ce6221771f6e374c4527d80f
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae