Evidence row 1262525

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://emailauth.openverbs.com/v1/spf-check"
    ]
  ],
  "name": "Email authentication",
  "owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
        "scheme": "exact"
      }
    ],
    "description": "Evaluate an SPF record against an IPv4/IPv6 address using only its literal ip4/ip6/all mechanisms. DNS-dependent mechanisms (include, a, mx, exists, redirect) reached before a match yield an honest `indeterminate` result rather than a guess.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "ip": "192.0.2.10",
              "record": "v=spf1 ip4:192.0.2.0/24 -all"
            },
            "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": {
                    "ip": {
                      "description": "IPv4 or IPv6 address of the sending host.",
                      "minLength": 1,
                      "type": "string"
                    },
                    "record": {
                      "description": "SPF TXT record to evaluate.",
                      "type": "string"
                    }
                  },
                  "required": [
                    "record",
                    "ip"
                  ],
                  "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": "2026-10-30T18:32:04.838Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-30T12:30:55.017Z"
    },
    "resource": "https://emailauth.openverbs.com/v1/spf-check",
    "serviceName": "Email authentication",
    "tags": [
      "check spf ip",
      "evaluate spf record",
      "spf ip validation",
      "spf sender check",
      "email authentication check"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Evaluate an SPF record against an IPv4/IPv6 address using only its literal ip4/ip6/all mechanisms. DNS-dependent mechanisms (include, a, mx, exists, redirect) reached before a match yield an honest `indeterminate` result rather than a guess."
}

What the leaf hashes

{"body":"696a382f49d6c93f6fdcbbce0fd3eea6aab6b307df22ff62bba0d1dca5cfc4ec","id":1262525,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385566676895,"prev":74845,"subject":"x402_bazaar:https://emailauth.openverbs.com/v1/spf-check","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0x7ca08da47f97498fa965f5d25c063db6ec7ac3820890e06b18749361e8633e01
2. 0x297d2e086bc8435c25cfaccfa008d730a0e9765373b0c30661c7b32816ad9abe
3. 0xc6d268f8d4d7e94933a3e2d427fc2090880a5feb453504c1f34c5b541bc47fc8
4. 0xcb770884f9f1b1dcb8eb004b3d5ad7ffe12cb5ad5ddb418f136d9afdee81ac55
5. 0xea33a56dcaf5516be34dcccc1a3fad4ed77a7d46e1f18047b62707d9880871ad
6. 0x96a21326ea17e99fefec1539ab207ceb8ba0d5cac60313ec4a202020ef8cd793
7. 0x62404a2c5c19bd9da0ddf1bf5cd0e2c68a117f508964272541a2ddfc85ec6d96
8. 0xdb7ad3f1a333f2ed5da19545f4e48953e0ff63a201b447201d1d003f0153e2ec
9. 0xd7c9409e4481e7bbbed19cd6692561d5982ff850f81cc5f75bf1f9b0d17a01c1
10. 0x1b85e0fd2c310769be0bac23069bb73b8dc37b63e296f5d62176929a2c47ae46
11. 0xba39a79b1c1d2edce767f863123b66e64687c5458b38230ebca558fa95b41e09
12. 0x1f5f9f811b3acae7b4c2226e26168d9d75a6c990f75984607118479efc3160a0
13. 0x7d78eff4c9ce267d28036a409ba9eaf648f301fa99e543592b9bd1ea5660fdc5
14. 0x98147b4434f11be9b2162fe0bf2cff64bd30ca1bfe5cd0edf25228078b678708
15. 0x235114e50a987e65d728b9ef8b5978846cd7c01f22effc55dd604c388ce359ec
16. 0xdbaaffa44665d1fa60d33d2c4075bd87629b76d01a6ee63e621e78590303b56d
17. 0xffe660edb9e5c6e3449a49454634c3e7b2f9fe703e5697f723b021735647ab7e
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861