Evidence row 76828

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://ip.openverbs.com/v1/subnet"
    ]
  ],
  "name": "Subnet calculator",
  "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": "Compute network details of a CIDR block — network & broadcast address, usable host range, total and usable address counts. Works for IPv4 and IPv6 (counts returned as strings for large IPv6 blocks). Honours RFC 3021 for /31.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "cidr": "192.168.1.0/24"
            },
            "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": {
                    "cidr": {
                      "description": "CIDR block, e.g. \"192.168.1.0/24\" or \"2001:db8::/48\".",
                      "maxLength": 64,
                      "minLength": 3,
                      "type": "string"
                    }
                  },
                  "required": [
                    "cidr"
                  ],
                  "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": "2026-10-08T06:12:25.696Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-08T06:12:25.439Z"
    },
    "resource": "https://ip.openverbs.com/v1/subnet",
    "serviceName": "Subnet calculator",
    "tags": [
      "subnet calculator",
      "cidr calculator",
      "ip network range",
      "calculate usable hosts",
      "network broadcast address"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Compute network details of a CIDR block — network & broadcast address, usable host range, total and usable address counts. Works for IPv4 and IPv6 (counts returned as strings for large IPv6 blocks). Honours RFC 3021 for /31."
}

What the leaf hashes

{"body":"b40b2a7bf434e3aa6b8b14b461c0f55cd9beb3b311ef5062f3406bc9acf9a3e9","id":76828,"kind":"listing","method":"baseline/1","observed_us":1793025492991790,"prev":null,"subject":"x402_bazaar:https://ip.openverbs.com/v1/subnet","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. 0x9e516895fcc85bc1a916e166fca783558766066421d1d54d6611b74ca55b6b1c
2. 0xeab2e8cfa91d7ea50baf5918a5f2e306db83b016ea4af4dc18b1e086b2f82a92
3. 0x9b46f77cd3225198f7461d5797e207b9c0bea9080cd17d563e64e4e6c81156da
4. 0x9d14b2a063d5a9cc09d580de9ec004d07fbda26e3efb4834442f099daa0f6e3c
5. 0x1741b278fb25ef3feca49ee43b6b4e08a23f1bcea3b23c8fc75f4699eb3e231d
6. 0x3bd6b26b8ff53cded88613eb1ad06f0c9cf6156e64aa79b43322aacc941e5069
7. 0xd48948d2bd2be2a17cb534ab18ece3a05446239303bcab370882d64e35ba9002
8. 0x332b282e2fb99d8e8435f9de2636abba196c51e8f8703c9baa83cbbaa220d8a7
9. 0xfe8f32850d20cf2e7aaaf9929e81ec89f9d29af0c025e85c6b386c2b7c4e400a
10. 0xe28c07fee0e288e36600367941f03b5da3143ee4c0b53ee2d78734dbe5523f0d
11. 0xcf41009271d76f70a486c0f32eb0d9e4d76bad43d622f4b5d56f18872edb19e1
12. 0x73cca5e5ba14c0aaa799d5324b89eb846e3c5546aab3b2cda0c05c5eeaa03168
13. 0x99a4e0f8b23989f58b564c1b6e419578b4388f6e0dbf6e50177c1bd476302d0e
14. 0x6713795704ddd9c528d421fadd9cc96b0200a4ddbba84f88e718d4968dde888b
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae