Evidence row 119071

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://readability.openverbs.com/v1/grade"
    ]
  ],
  "name": "Consensus grade level",
  "owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
        "scheme": "exact"
      }
    ],
    "description": "Summarise a text's difficulty as a single consensus US grade level (averaging the five grade formulas), plus the Flesch Reading Ease, a plain-language difficulty band and an approximate age range.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "text": "example"
            },
            "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": {
                    "text": {
                      "description": "Text to grade.",
                      "type": "string"
                    }
                  },
                  "required": [
                    "text"
                  ],
                  "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": "2026-10-08T05:39:21.053Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T05:39:20.772Z"
    },
    "resource": "https://readability.openverbs.com/v1/grade",
    "serviceName": "Consensus grade level",
    "tags": [
      "grade level estimate",
      "text difficulty grade",
      "reading grade level",
      "consensus readability grade",
      "age range readability"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Summarise a text's difficulty as a single consensus US grade level (averaging the five grade formulas), plus the Flesch Reading Ease, a plain-language difficulty band and an approximate age range."
}

What the leaf hashes

{"body":"af2ebe2311a70a053d86c826f9ab98372bbb9dc6ee45649c898e756a33435fe5","id":119071,"kind":"listing","method":"baseline/1","observed_us":1793025614431729,"prev":null,"subject":"x402_bazaar:https://readability.openverbs.com/v1/grade","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. 0xc4130a952583a906133a47083e2989137291a953fdb56d86932bb074a9ac9ca4
2. 0x434847257309f5cf456ff794367b6a3de8de71d8384a508a4d7463d13a90dcc0
3. 0x0565efea7c3e1b0722ff32ee5995a0ba6cad392a845e544954f78cdd96877e2b
4. 0xfd5992a4c3f3ec7e379c51d0d8365d7f08545a64aa4c3bfa4d4cf8763331a45e
5. 0x38802429fbeeeeaa604f90b704cac2b9e17a8437c3473fa2ccdeace936dd5707
6. 0x618f2b457d170a96405d13e20ef31f39a88918fe9d1ecaf4f655219563da47c8
7. 0x29772ff2ceec0d73703e3db1d996c36f8d6fd5e874add0ced3ba4e920a50f65b
8. 0xda0ec7cdd945a045d2128a95bae007d3dfe6bdec78f95b708b1a7b6f29060d9b
9. 0xb27d4aa33f64f45fa7d713149f17d13b2ee30393cc7a102b9a52040296e5cde5
10. 0xdc850e305944c852a3843d2749ca3439ee04fdbf864b6a8660cc3fd8b5aced96
11. 0x2cd92a66ffb802d7ebc327d20fe07925be80289ee1c2910e6818dc40c67f2487
12. 0x63002f2569d43725bbf2d04d90ec9e6cf925c96b6dda5e7e220ecfbdd9c2444d
13. 0x641fba1f23ec69d96721e34ace1926954d835b9614cb5eae215a069c056399b8
14. 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae