Evidence row 72300

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://checkdigit.openverbs.com/v1/routing"
    ]
  ],
  "name": "ABA routing check",
  "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": "Validate a 9-digit US ABA bank routing number by its weighted (3,7,1) mod-10 checksum. Spaces and hyphens are ignored.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "routingNumber": "021000021"
            },
            "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": {
                    "routingNumber": {
                      "description": "9-digit ABA routing number (spaces/hyphens allowed).",
                      "maxLength": 32,
                      "minLength": 1,
                      "type": "string"
                    }
                  },
                  "required": [
                    "routingNumber"
                  ],
                  "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": "2026-10-08T05:39:57.636Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T05:39:57.379Z"
    },
    "resource": "https://checkdigit.openverbs.com/v1/routing",
    "serviceName": "ABA routing check",
    "tags": [
      "aba routing validation",
      "validate routing number",
      "bank routing checksum",
      "us routing number lookup",
      "aba check digit"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Validate a 9-digit US ABA bank routing number by its weighted (3,7,1) mod-10 checksum. Spaces and hyphens are ignored."
}

What the leaf hashes

{"body":"9d2b97f63455a372f9646166de3acfbd5b1de3e49a4b8e18a4dae85425a047b0","id":72300,"kind":"listing","method":"baseline/1","observed_us":1793025485611043,"prev":null,"subject":"x402_bazaar:https://checkdigit.openverbs.com/v1/routing","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. 0xa450c3ac97cb565f07407d881f37cf833a56d372e7f98b7b4b102af46854a176
2. 0x301ed15532a445792deaae173650dbd66bd43499acaceac714ddf27ce410af80
3. 0x0c87979b7fb054240740d4567a13f4902ce344d7c3bb9b9d31ba76a176626e33
4. 0x285a559c6e179cfe90d9a88b349ad0ffc4f5079425ee264bb7285e47ef96dfda
5. 0xeb1d72f064c1a701fa28816beda199c61f703dbb7e75f7d22f1e07209cb91f2f
6. 0x4a02ee6e7ab32756a971df241ca28583399bd173adbdbc297ea5a81bca822052
7. 0x55052706b0458e816148db91c3f25657ebac4eef40974c6f93bdd17a80fea34a
8. 0x897f00a8f4eec974b7e8daf0e260b414fa69a265b398bed2025d9920b1cdc6c6
9. 0x379dce8f4f81c1da8c228257bf51d1eea95978e6d24e3625a0a38a1edb3348fe
10. 0xcfc41667c7e4033b09b3eb60ac1b4f7735f1d813168ca8ee332b26dbabe469c4
11. 0x63bb18928b05af339d3db18a674ec04120f1a31736f638d4e101d735122f8380
12. 0x21725c62783071369e87d9e0abedb3d8cc37bdab8d0d58308c28aeb7cfd2bc8c
13. 0xc34c13c58ba9c342ea1b833ac1882a4aea22777c4fd1092b2f83d3bac6b9f845
14. 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae