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Evidence row 63927

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://agentshelf.syntexa.ch/v1/base-nonce
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
18f2ddac22570cf5ea187795e2bfc7c9117214ab34bef6e3ca7f4594bf5f42bd
Leaf
0x70ba1c3634871620c0573194eabb9b2be601286505a7816349319eb15c68f8f0

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agentshelf.syntexa.ch/v1/base-nonce"
    ]
  ],
  "name": "agentshelf.syntexa.ch/v1/base-nonce",
  "owner_address": "0x1d61faa032d3f40d9c470d2bf3a3f53de0e55a38",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x1D61FAA032d3f40D9C470D2bf3A3f53De0E55a38",
        "scheme": "exact"
      }
    ],
    "description": "Call when an agent needs the next pending nonce and confirmed transaction count for one Base address. Send address (EIP-55 or one case). Read-only eth_getTransactionCount on eip155:8453. No spend. Send JSON {\"address\":\"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045\"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/base-nonce first.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
              "billed": true,
              "network": "eip155:8453",
              "nonce": "5",
              "ok": true,
              "receipt_id": "rcpt_01EXAMPLE000000000000000",
              "transaction_count": "4",
              "warnings": []
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "examples": [
                    {
                      "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
                    }
                  ],
                  "properties": {
                    "address": {
                      "description": "Address on Base mainnet. Example: 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045. Returns the pending nonce (next to send) and the latest confirmed transaction count. EIP-55 or all one case. Read-only.",
                      "examples": [
                        "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "address"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "additionalProperties": false,
                  "examples": [
                    {
                      "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
                      "billed": true,
                      "network": "eip155:8453",
                      "nonce": "5",
                      "ok": true,
                      "receipt_id": "rcpt_01EXAMPLE000000000000000",
                      "transaction_count": "4",
                      "warnings": []
                    }
                  ],
                  "properties": {
                    "address": {
                      "examples": [
                        "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
                      ],
                      "type": "string"
                    },
                    "billed": {
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "network": {
                      "const": "eip155:8453",
                      "examples": [
                        "eip155:8453"
                      ],
                      "type": "string"
                    },
                    "nonce": {
                      "examples": [
                        "5"
                      ],
                      "type": "string"
                    },
                    "ok": {
                      "const": true,
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "receipt_id": {
                      "examples": [
                        "rcpt_01EXAMPLE000000000000000"
                      ],
                      "type": "string"
                    },
                    "transaction_count": {
                      "examples": [
                        "4"
                      ],
                      "type": "string"
                    },
                    "warnings": {
                      "default": [],
                      "examples": [
                        []
                      ],
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "ok",
                    "receipt_id",
                    "billed",
                    "address",
                    "network",
                    "nonce",
                    "transaction_count"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-17T08:29:03.228Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-17T08:29:02.436Z"
    },
    "resource": "https://agentshelf.syntexa.ch/v1/base-nonce",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Call when an agent needs the next pending nonce and confirmed transaction count for one Base address. Send address (EIP-55 or one case). Read-only eth_getTransactionCount on eip155:8453. No spend. Send JSON {\"address\":\"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045\"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/base-nonce first."
}

What the leaf hashes

{"body":"18f2ddac22570cf5ea187795e2bfc7c9117214ab34bef6e3ca7f4594bf5f42bd","id":63927,"kind":"listing","method":"baseline/1","observed_us":1793025455815547,"prev":null,"subject":"x402_bazaar:https://agentshelf.syntexa.ch/v1/base-nonce","subject_kind":"source_record"}

Proof

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

  1. 0x70bae5c45f5e509e9627d7e1d496cb247b2dbc9fb961c6fbf3c59ef77125624b
  2. 0xcc55946d8b743078d08386a8bc23745a5ef40a13875b8ea81b200cdfe96fd562
  3. 0xa32147d13570053f820b2d705c18278ce8821283aef27b60cadf09e2f6bbb340
  4. 0x7b6cacb6876e2a047cc9b3542ef83895f954d40b617215f7f79a673711c3b349
  5. 0x39eac95bdc383a9b5f25b2e58fcd59d6da660c96822d4a942987fc9e598e7d27
  6. 0xd6d37f7e5e212a189f8dc9f4eb1888767b43e3ccc8c0a4128f1da6f3dfe8e836
  7. 0x01fc212e8bcdf4707a1146e827dd5109103a93229c71a011c5f5a1c14807f15c
  8. 0x68ace2b23863c07baf76c5982c8b23143d30bb4f21cd0533cf09549184b48620
  9. 0xc9ba8e512a3ad74ee604f8b1759e25b1172f9f8f62ba4f8f8bcc35beb64f6fcb
  10. 0x3801dc224ee69349c6fe3a8804f83a6392c51dbf385196ccaca4e1bc01124391
  11. 0x85ea4bbb5113622e4aa66d1805aad88594922ba95c70691ba980547dd9edd2b2
  12. 0x5be1d69fd9353c3a75685caffea8c98e8f079f5072011c82517cc5f365ba32f8
  13. 0x14b83e3bc6587240f31cd033d09d131e0775b7b00aada9042597008a70399013
  14. 0xfc9b5a81a7a83a1c735a4fe64590beb9db14d2366f463161358af28c3ea9a81d
  15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
  16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON