Evidence row 120040

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/json/format"
    ]
  ],
  "name": "Saylor Innovations Dev Tools",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:devkit:json-format",
          "name": "USD Coin",
          "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
          "memo": "saylor:devkit:json-format",
          "reference": "GXc87pjHpZAKy3Pi7rDecDb5z4BFK5EPMuQSBqkDGgjE",
          "session": "eyJhcnRpY2xlSWQiOiJkZXZraXQ6anNvbi1mb3JtYXQiLCJyZWZlcmVuY2UiOiJHWGM4N3BqSHBaQUt5M1BpN3JEZWNEYjV6NEJGSzVFUE11UVNCcWtER2dqRSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyMjM1NDY3MDU2fQ.Ikf4s-c4kRc4Ml5gFSvupnz37abnoaIPnAn-xCVvFAA"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "JSON formatter and beautifier - pretty-print or minify JSON with chosen indent and optional key sorting",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "indent": "2",
              "json": "{\"b\":1,\"a\":[1,2]}",
              "sort_keys": "true"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "formatted": "{\n  \"a\": [\n    1,\n    2\n  ],\n  \"b\": 1\n}",
              "indent": 2,
              "input_bytes": 17,
              "output_bytes": 39,
              "sort_keys": true
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "POST",
                    "PUT",
                    "PATCH",
                    "DELETE",
                    "HEAD"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "indent": {
                      "description": "optional 0-8, default 2",
                      "type": "string"
                    },
                    "json": {
                      "description": "JSON text to format",
                      "type": "string"
                    },
                    "sort_keys": {
                      "description": "optional true",
                      "type": "string"
                    }
                  },
                  "required": [
                    "json"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "checked_at": {
                      "description": "Time the check was run (UTC)",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "formatted": {
                      "type": "string"
                    },
                    "indent": {
                      "type": "number"
                    },
                    "input_bytes": {
                      "description": "Input, in bytes",
                      "type": "number"
                    },
                    "output_bytes": {
                      "description": "Output, in bytes",
                      "type": "number"
                    },
                    "sort_keys": {
                      "description": "Sort keys",
                      "type": "boolean"
                    }
                  },
                  "required": [
                    "formatted"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json",
                  "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/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-17T11:09:07.094Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-17T11:09:06.718Z"
    },
    "resource": "https://saylorinnovations.com/api/json/format",
    "serviceName": "Saylor Innovations Dev Tools",
    "tags": [
      "json",
      "format",
      "calculator"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "JSON formatter and beautifier - pretty-print or minify JSON with chosen indent and optional key sorting"
}

What the leaf hashes

{"body":"0df9bd17a36f2010dc55270eedd7232299e55c9050ad152f65880245ef287f6a","id":120040,"kind":"listing","method":"baseline/1","observed_us":1793025617129457,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/json/format","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. 0x4bb560bdb05e03c30369479d1a9aaeaf5f2a6a41416622dd4a5eef89558679c0
2. 0xde7b706e1e6a472d02a387348caf1964f0d4892167e21d12079d1e322af9b568
3. 0x27c760a385cf79eaebcfee62e6faef2b2fa665cae98281cd50be44b7ca8562d6
4. 0x481e87f80f7d39252ec7ab348fe5bc61e39466102db454ad9c51c54f2eb03913
5. 0x113b0d498fb3de75cbd5bca85cdf7d1c9f70b08ff7b5a4220b87f19e0e65557a
6. 0x2dac427056c2041f747d960c1cbe45ea1de8d38e511c70f473fb74233cb587f2
7. 0xd3454f691b8ba0b9b53d275a589acf2413ed0e6e4c8f1da52e5c782577692374
8. 0x69c699acbd359aeb7e6db54a348f489964f2748d39ca3d05587e0ce8f7d08cb1
9. 0x2eff88dd310b0d6e4c81b9dd08dc1d8ecc83459ce7b44d736b37e179137413f8
10. 0x25535a5918795cc2fd8a0d10ce751f574b6ad2a93510526d842cb104854c5af1
11. 0x8e1dce5acc3a34df8e5fee91635037c0b87740a313eb455495b8fa04b41070e7
12. 0x67ae8949b58cb7b0dd4cfa0f9aeeee715e0ae6b87fef0ba46483bbf280004c53
13. 0x1ffd24a0422348bb2305058cc138e276511e1c074bf8139af5b773941f0e5de2
14. 0x88e326a39b26e2c125306c9d3805d14398ace088bba9a2a0aa376b811cfb201a
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae