Evidence row 2633239

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://foundations.tensegrity.works/mcp/elements/search"
    ]
  ],
  "name": "Foundations Elements",
  "owner_address": "0x955012ddc5c9b7f86ad8d48f3f26d61bdbc899a9",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxAmountRequired": "20000",
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x955012ddC5c9b7F86Ad8D48F3F26d61BdBC899a9",
        "scheme": "exact"
      }
    ],
    "description": "Foundations Elements search",
    "extensions": {
      "bazaar": {
        "info": {
          "discoverable": true,
          "input": {
            "method": "GET",
            "queryParams": {
              "kind": "charts",
              "q": "funnel"
            },
            "type": "http"
          },
          "output": {
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "kind": {
                      "type": "string"
                    },
                    "q": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "waitlist": {
        "info": {
          "action": "signup",
          "label": "Request Elements access",
          "url": "https://tensegrity.company/elements?utm_source=x402&utm_medium=api"
        },
        "schema": {
          "properties": {
            "action": {
              "const": "signup"
            },
            "label": {
              "type": "string"
            },
            "url": {
              "format": "uri",
              "type": "string"
            }
          },
          "required": [
            "url",
            "action"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-03T08:22:17.672Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-03T08:22:17.43Z"
    },
    "resource": "https://foundations.tensegrity.works/mcp/elements/search",
    "serviceName": "Foundations Elements",
    "tags": [
      "ui-catalog",
      "agents",
      "x402"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Foundations Elements search"
}

What the leaf hashes

{"body":"29154b90bfd1061f10ef0d7a281bcf3f5a51c4bcbefba43853c2894a7bc749da","id":2633239,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793734401854666,"prev":null,"subject":"x402_bazaar:https://foundations.tensegrity.works/mcp/elements/search","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0x4a2e53b52aa7d4001581203b3784315fa3279dd87748d91c64740fd7394d9644
2. 0x9c672df5a82a6a47cc034ff32252a4a4bb63887066918a229a21c8cbf51a5fe4
3. 0x42fd97d1d4384de8bfa4ac0c24a3db1c5142c5805d60004c6112e7664fb1c98e
4. 0x5d064f74ff7fe4d0895454ae399d656166b501f2ef9e8adc0e40c463f8052a5f
5. 0xe2e5ff1d5c6d3f79aa39b488cfa32e32def6c4912af5d54532714ecc2114c98d
6. 0x8d166957e88b9c1a885326da3c6adcfe41c82c7bc985fd7c62bd2ee05ab580bd
7. 0x8ab84c40c017c1e3b1b5274c5fc914c685f613f60124fdc28fd33cce5301df6e
8. 0xf7e5400294cc1018b87f7486c436ffa8e64d9bb6518e1f235026adc6fc8dcbac
9. 0xa97b2f3235e968b28118dfc55cef115a0cc009a2048598a685366a803ccff05f
10. 0x581ba9cf0eb0991ea15a996d1af38a0331731fa586c12ee4fe9c88cda2e6fb57
11. 0x4fee6b6035cffd8074620180946b470ad0c6a3b75224fab2ba16f28b4708b99b
12. 0xe78bd9e7fcf86c5ca6ffa6b48e71fb238078dfe3bd58a35e0f7e2b1b1cfedccd
13. 0x25e7c6e3ae958d725091b9780092a534731cdfe4819dd1ffe52af56311601eb8
14. 0x5e9968227987a7f0940fee03a33017f5e7157de7f0889921817733c1ab8871d1
15. 0xd106fbd3b5dac57c72dd4fc8931f69b38fd5a542627e63d015b63dadf2188a2f
16. 0x35ca4633a97853eefbf38aaf743dd7ff85a4c731ccc8e31a34fd826c3142d6ea
17. 0x87df2ed9052c264d606c076742aa7e54b69fc8344b21e972ebcb19d020b7ecf3
18. 0x012ad914f3f945da3b6b48eddc7a1388613e4afc04339deb76c609611864e9b9
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7