Evidence row 71274

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://ask.singitai.app/v1/exa/search"
    ]
  ],
  "name": "SingIt Ask",
  "owner_address": "0xc23d1dc0f5fce1abffb051e06cb93f0329968b4e",
  "raw": {
    "accepts": [
      {
        "amount": "10100",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xC23d1Dc0f5fCe1abfFB051e06cB93f0329968B4e",
        "scheme": "exact"
      },
      {
        "amount": "11100",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "4an2sqamWWhny9mjLsMtGXCDXakeNtg6vSLq4QvhdmQu",
        "scheme": "exact"
      }
    ],
    "description": "SingIt Search: Web search from Exa, up to 25 results with optional page contents. Call it when an agent needs current web results, with no API key or account.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "numResults": 5,
              "query": "x402 payment facilitators"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "billing": {
                "currency": "USDC",
                "exaAtomic": "7000",
                "feeAtomic": "1000",
                "markupAtomic": "2100",
                "totalAtomic": "10100"
              },
              "requestId": "example",
              "results": [
                {
                  "author": null,
                  "id": "https://x402.org",
                  "publishedDate": null,
                  "title": "x402",
                  "url": "https://x402.org"
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "category": {
                      "description": "Exa's category filter, e.g. news or research paper.",
                      "type": "string"
                    },
                    "contents": {
                      "description": "Page contents to return with each result (text, highlights, summary).",
                      "type": "object"
                    },
                    "endCrawlDate": {
                      "description": "Only pages Exa crawled on or before this ISO 8601 date.",
                      "type": "string"
                    },
                    "endPublishedDate": {
                      "description": "Only pages published on or before this ISO 8601 date.",
                      "type": "string"
                    },
                    "excludeDomains": {
                      "description": "Not these domains.",
                      "items": {
                        "type": "string"
                      },
                      "maxItems": 100,
                      "type": "array"
                    },
                    "includeDomains": {
                      "description": "Only these domains.",
                      "items": {
                        "type": "string"
                      },
                      "maxItems": 100,
                      "type": "array"
                    },
                    "numResults": {
                      "default": 10,
                      "description": "Results beyond 10 cost extra.",
                      "maximum": 25,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "query": {
                      "description": "What to search the web for.",
                      "maxLength": 2000,
                      "minLength": 1,
                      "type": "string"
                    },
                    "startCrawlDate": {
                      "description": "Only pages Exa crawled on or after this ISO 8601 date.",
                      "type": "string"
                    },
                    "startPublishedDate": {
                      "description": "Only pages published on or after this ISO 8601 date.",
                      "type": "string"
                    },
                    "type": {
                      "default": "auto",
                      "description": "Search mode: instant is lowest latency, fast adds page excerpts, auto picks per query.",
                      "enum": [
                        "instant",
                        "fast",
                        "auto"
                      ],
                      "type": "string"
                    },
                    "userLocation": {
                      "description": "Two-letter country code.",
                      "type": "string"
                    }
                  },
                  "required": [
                    "query"
                  ]
                },
                "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": {
                  "properties": {
                    "billing": {
                      "description": "What was charged, in USDC micro-units",
                      "properties": {
                        "currency": {
                          "const": "USDC",
                          "type": "string"
                        },
                        "exaAtomic": {
                          "type": "string"
                        },
                        "feeAtomic": {
                          "type": "string"
                        },
                        "markupAtomic": {
                          "type": "string"
                        },
                        "totalAtomic": {
                          "description": "The amount settled",
                          "type": "string"
                        }
                      },
                      "type": "object"
                    }
                  },
                  "required": [
                    "billing"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792921332/bazaar-icons/a240c598b3f928d1.png",
    "lastUpdated": "2026-10-25T18:41:26.485Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-25T18:41:26Z"
    },
    "resource": "https://ask.singitai.app/v1/exa/search",
    "serviceName": "SingIt Ask",
    "tags": [
      "search",
      "web-search",
      "exa",
      "answers",
      "citations"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "SingIt Search: Web search from Exa, up to 25 results with optional page contents. Call it when an agent needs current web results, with no API key or account."
}

What the leaf hashes

{"body":"33b34f726f9c1ea9b39f7688875a3eeb9043473591c3a7a15620192e68c504f2","id":71274,"kind":"listing","method":"baseline/1","observed_us":1793025481880370,"prev":null,"subject":"x402_bazaar:https://ask.singitai.app/v1/exa/search","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. 0x5cd9bab3f322ae0dee8945d25382442709be25da6f2925dad198b796e2a170ad
2. 0xbbdc7ef62f53f2fa30f1fa1ca2798c7e491df7b457f6493c9764aaf056590c4e
3. 0x728d3ac31d60d9f9f058d77b9ac3cd13a4e211f525a8fc654f778cb189153aef
4. 0x81933e47a96289c0769a8d7578c22e6fa8adeba82e31f673f0da006d4ea31d50
5. 0xeb17b45187427f4b720b424210a6b11046f7019fd153d8991d13225a830b6796
6. 0x671deb965187f8d81c9546a63973b0adc8be69cc8a625c1eee257cc3436fc8d7
7. 0x2d55f4f6aa0540108ddaf7533aa122c939e28e6b51b5f2a48bc919cc2829f22d
8. 0x11cd833d5e1469fe8d57145a8d5db7c2543cbc5c9483a7ca9166772e5d04ed04
9. 0x7eb75dd1e81cda92f3d3644a17b5670e7101382a0c9721c62bb15dc5ee80c13a
10. 0x03c42b42d3530e8b1af42dd3b73806d66f3f775bcfa635014cc03b899ee19ea5
11. 0xc6d2784f07e8c139bf8f780cbae14d0deadd031c795b132568f433e9f582c7d3
12. 0x2121cc2dbcb8663af57743dc445c8a59e5bbfffe89703f0606c9843f0d35aff8
13. 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae