Evidence row 1507717

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": 4,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-30T18:32:04.544Z"
    },
    "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":"4e227fbab386c647a4b3feee58de314975d672b48f98894cb33530e870a9f989","id":1507717,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793472702985465,"prev":1262525,"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 2026-10-31 (246033 rows).

1. 0x795f0ab989c565ac0ec2ecea62670a2298cd1b5d6defc0692adf1ca0fc960718
2. 0x0d00fd16eddef0c7e062d7deb225ea6d6f6842d9d034e576b98b1573c44291c9
3. 0x791ebcf96236d4170fb8d4a1de57be2c26e9eb4b5a003d4f2a59cad402b01917
4. 0xca164a54402d181b8c8b22ceb7ea8a2cc6c1209fffddb5223aacece725386fab
5. 0x6c57581a4691d3ce4a023ce94e0999c6270e9828eec3f18e826764ebff6ac010
6. 0xa881a06795fde254585fbc5bfc7b781e79523020d03055417a95dc95158d9acf
7. 0x3b25b49c01eb0b5116aa2f4edcf962967b9c4900a420c535dc60e0ab070a92be
8. 0x2267a0a874393a38a8b00ba874e5172db76b5f5556dbb452bfa6d2d392c30cca
9. 0xb207847b78c289cbb67c8b0e080fd9e3dd2939c7ed3e4adfbc563decee508d08
10. 0x323aa7ba297e28ebb89ff7f9791c99f946c10b6de6ef6a5454e98de8fe302bb0
11. 0x680ae7742bdb68d8129dda1655bbcc704f8a613bcf7f1ae4088f6cf2e1d1b8a2
12. 0x9b3951142ae0ce5f127a3563afb9f64e9145a8ac76acf4f420d92d6bee8fdd0f
13. 0x6f342b409fb218fea5a9ebd88615e8d17e77e4fdcc8d4dada1317b6321231eab
14. 0x84193793d818f53b9c5052b74eabfcc53522dfa943c3bf7c8bd476913e085e52
15. 0xb553c856ad5fb96dd995dd0c40f65a2d8efc7b7f254a1ac0f2c104350e544985
16. 0x919f237dec4df392868ab95f1d4300b185479ae64464cbc2e7385ad1fd6ab390
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0