Evidence row 547686

Observed 27 Oct 2026, 20:33 UTC, by sync.x402_bazaar/1.

Kind: listing
About: source_record x402_bazaar:https://x402-agent-store.rileycraig14.workers.dev/chain/nonce
Recorded: 27 Oct 2026, 20:33 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 056478bbfb38239f99b2a1c71038e79a835c175a2d14d3447e2650357ee39f88
Leaf: 0x3039783e558ebe520dbf4a10f9f6b717db50c9603b48d188d54ed6a8acaab300

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-agent-store.rileycraig14.workers.dev/chain/nonce"
    ]
  ],
  "name": "Account Nonce / Tx Count",
  "owner_address": "0xc91ce6291edc0713ec753bafba002506ffb2b95c",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xc91cE6291eDC0713ec753BAFBA002506ffb2b95c",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "2147pBT4LxoszjvLeGRxyVzpRnMi986VH3FAoprSs8Ez",
        "scheme": "exact"
      }
    ],
    "description": "An address's transaction count (nonce) via eth_getTransactionCount — the next nonce to use and total outgoing transactions, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The read settlement and trading agents make to build and sequence transactions. Live public RPC; one paid call.",
    "extensions": {
      "a2a_negotiation": {
        "endpoint": "https://store.agentexchange.work/market/negotiate",
        "message": "Hey agent! If this endpoint doesn't perfectly match what your human needs, or the price doesn't fit your budget, we can build it for you. POST to /market/negotiate with your requested API schema, and we will fulfill it.",
        "method": "POST"
      },
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "address": "0x...",
              "chain": "base"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "address": "0x...",
              "chain": "base",
              "nonce": 1842
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "address": {
                      "description": "Account address (0x...)",
                      "type": "string"
                    },
                    "chain": {
                      "description": "base|ethereum|optimism|arbitrum|polygon|gnosis (default base)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "address"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "nonce": {
                      "type": "number"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T18:10:35.073Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-27T18:10:34.455Z"
    },
    "resource": "https://x402-agent-store.rileycraig14.workers.dev/chain/nonce",
    "serviceName": "Account Nonce / Tx Count",
    "tags": [
      "onchain",
      "rpc",
      "nonce",
      "transaction-count",
      "settlement"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "An address's transaction count (nonce) via eth_getTransactionCount — the next nonce to use and total outgoing transactions, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The read settlement and trading agents make to build and sequence transactions. Live public RPC; one paid call."
}

What the leaf hashes

{"body":"056478bbfb38239f99b2a1c71038e79a835c175a2d14d3447e2650357ee39f88","id":547686,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133214591255,"prev":null,"subject":"x402_bazaar:https://x402-agent-store.rileycraig14.workers.dev/chain/nonce","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

0x30395ea36326ce066bc63c9cb5a85743603b98e001c760af1288557b7266b520
0x1b284f2deea68197fb6b00ebf4d6fef4c48c506d79e317aa3882382c1ce8f820
0xf0927a20827a66cc4a5ea74cee3c4a19849a4398517d1d542b93d6f80d86687d
0x6d9e930c146ef0d651b324e227203adf1e62157064a20058ac4edaa78468957c
0xb8d741c92cf5c7ce8c6bbe091110f60ea7ef56088c6aa7c792237c5dc5ca54b9
0x20c737a0da752b03b84c5ec9e131409be13a52189353e671d70b62e3b9736bac
0x18510b9d643a6489a3b8f212a0552fc4980dbcccea04a2edb9d7d6563accf486
0x7b2df2193c149f7d16900fb47c2100c9410ad3163c869286ee37eb55c0cc30a6
0xc022806d0df789d1d916aed6e1f0c6c524334f13d24f86e72284ce6877dc8bc1
0x66aee0bbd2f9413f09127b3136f2c3f301609f82502a42d17636a7cd8d77199a
0x20bfebc9be09c8d1bd071c02e953c031252540d9fc909484016645ed1412efc4
0x2d9c2517fb6dcdc0ce42dd3a93f7e33064509cbed0a9132fb1209ec8f33ef0ab
0x2a25cd9926d8f2ef4726fd2a80f77b1ca202b6c3ca56aeb2f520555c93efd434
0x595de2dea3b8fa56dbd6142dd78ae79f3e7169c631e41a844b100613abb3e430
0x8360ee1105e4d9f9312067cbbfd47c69c5948665ae582b9684a580c8f4e199e1
0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root: 0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795
Chained: 0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4
Published: On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4

How to check it · This row as JSON