Evidence row 1531954

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://instructional-decision-engine-x402.vercel.app/archive/references"
    ]
  ],
  "name": "NovaPath",
  "owner_address": "0x6b62673ccbe35ff0dc68490c7ca576334e0d607e",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x6B62673cCbe35ff0dc68490c7Ca576334e0D607e",
        "scheme": "exact"
      }
    ],
    "description": "Search a cross-domain Internet Archive metadata snapshot spanning education, science, technology, economics, history and government. Returns up to five bibliographic references, original item links and reported licenses. Fixed bounded sample; no full text or reuse permission.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "limit": 3,
              "query": "education"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "limit": {
                      "maximum": 5,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "query": {
                      "description": "Public business or topical keywords only; 1–10 distinctive terms. No personal/contact data, URLs or instructions.",
                      "maxLength": 120,
                      "minLength": 3,
                      "type": "string"
                    }
                  },
                  "required": [
                    "query",
                    "limit"
                  ],
                  "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"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-31T00:58:01.552Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-31T00:58:01.34Z"
    },
    "resource": "https://instructional-decision-engine-x402.vercel.app/archive/references",
    "serviceName": "NovaPath",
    "tags": [
      "internet-archive",
      "research",
      "bibliography"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Search a cross-domain Internet Archive metadata snapshot spanning education, science, technology, economics, history and government. Returns up to five bibliographic references, original item links and reported licenses. Fixed bounded sample; no full text or reuse permission."
}

What the leaf hashes

{"body":"12ebe54d09db2e11cce238a80509929720e7ccc84774def9778af55b5791e94f","id":1531954,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793473467551864,"prev":null,"subject":"x402_bazaar:https://instructional-decision-engine-x402.vercel.app/archive/references","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0x5ab109fd22bb752c4f7eb5dc57381fa5a62c2885b38787c14cbdf96e40471e06
2. 0xe4316d51c1f239ad2313cc64894c2f1cac961aeb3b664fbd2c3a8ac839559433
3. 0x199faf07a68ceeb3807b177b599692dc61cb0592802a0d30735c1a79072c4086
4. 0x5372fd6f98c7a44a10e02ff103dc54226799c41a9d8a279963aed64547f82227
5. 0xb400f661b598eb9abc818630839ba84d5eec7bca3b89c85e5ad8bb9f16ab4dc0
6. 0xebff8c23d09ec9e4213b875190d7b2ce07a55238c4ee242dba38b607fc752547
7. 0x50fbacb1dafea39570223c51d649aa9b5f623d3ac3fe7a3352b382bdfabe0c42
8. 0xc12615713586bd78adb843ccdf07bcf96897aeb248fa1b0e2b14f78feefa94c3
9. 0x27b79beb954edfb236dd807500b8d17a752e9d1d2fd12a604bfef4309692e4e9
10. 0x28e53465acd36eda1f3c6d212e60261251fbbb6cc2ffad4b901bad4470ac6af3
11. 0x9afd09c350860785cb68b1159f8d8c89df44a6f49b5338270e2c42297cc73b1c
12. 0x6fadba2948b309bd48a48f64fd9c137089509615974e833bfc862ecf75270ecf
13. 0x3f29202637d7ceda8fabfbf7810410a7ec3b1bc07170e352d26f9ba4ee18d86c
14. 0x4491b6c04d316f311f7fea4ea34ae52fbca9c230259096575b403fb7b124627a
15. 0xb9a00c724331b305deaa876d5d2baf53b847ff3c7ce37abb0ae1653b2534aad5
16. 0xad4540f06e3fdfe46524d8592f8d854d4849e16217bc047eaf024f0abebe34b0
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0