Evidence row 555641

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://how.is/v1/domain/dnssec"
    ]
  ],
  "name": "how.is/v1/domain/dnssec",
  "owner_address": "0xa76a0e93c5af3fd43521300b0a58ef5f70fc44f6",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xa76a0E93C5af3fd43521300B0a58eF5F70fC44F6",
        "scheme": "exact"
      }
    ],
    "description": "Whether DNSSEC is signed and validates for a domain.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "domain": "github.com"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "_shape": "data.data: isSigned, isValid, validationStatus, chainOfTrust, dsRecords, dnskeyRecords, errors, warnings, recommendations."
              },
              "receipt": {
                "charge_usd": 0.005,
                "rail": "x402",
                "settlement_tx": "0x…",
                "tool": "dnssec"
              },
              "result": "DNSSEC for the requested subject"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "domain": {
                      "description": "A bare domain name, e.g. example.com",
                      "maxLength": 253,
                      "type": "string"
                    }
                  },
                  "required": [
                    "domain"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T19:58:45.787Z",
    "quality": {
      "lastCalledAt": "2026-10-27T19:58:45.787Z"
    },
    "resource": "https://how.is/v1/domain/dnssec",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Whether DNSSEC is signed and validates for a domain."
}

What the leaf hashes

{"body":"7f36ba3287fb84cafee23c34cfdc2f3bd361d1249413f2be54ea217e3b571990","id":555641,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133801003551,"prev":null,"subject":"x402_bazaar:https://how.is/v1/domain/dnssec","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xc532b255e5f2e8529860a96a74d0a87460c0d7e676e6273121b2693d488dea95
2. 0x4aa1400d6bf7006b008ba553db2b0034b068b93674147f950823f7e8ac8490c3
3. 0x91c21a62ce21891879a58a02e8714532a24aa3662a7dff6fac85ca1ad05ce8ac
4. 0xad2600578c2b86e5a4fc39a8cde638a318d690fdaca903c25d15ab48ed3ae8bb
5. 0xf5129b6df0c2543502076e2ad37aee2d9ab1c8b2f6d37437ad7eb4d1b82f0a17
6. 0xe77a8abbc18abec3dce11d8a431cd8ca062ec59c4effebcbc28af3bc544fbb7d
7. 0x3c71cab2238026219959fad182ceb35b662fa1ef6473b0aef46d62f5571b6c63
8. 0xb8846ca42be0f2f2e3266e35bdc4dbb1b3c6d8406372cc22555168065460fe1e
9. 0x4fac025d2b63a8c2420b92d9888c01e1f66e9470e0e24df4fc7854add0b06477
10. 0xa86a044552bf4b7203194e42b15773bbe1e42e6ac0ee79aa572564bcb910c6cb
11. 0xaee0b65107319ac7d478b02b678408530570d0ec7f9fc1210cadd287c876dc5a
12. 0xee8734682e9314905d7abd2575a48cec1c4d752265d2b88ce346211a72684543
13. 0x72d49c3472216d5e76117068ea9a2a5f617bdb2ffda241f677ce8098a0219dfc
14. 0x077edf0f29e2a3aa19c876439830696b88f0236fd0b2a3c43c76f38cdd29bb2b
15. 0x73341bb09dd901ca47f26173883431496e3d98d6b0fb5b89f36218126d46c5d4
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4