Evidence row 751982

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://how.is/v1/domain/available"
    ]
  ],
  "name": "how.is/v1/domain/available",
  "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": "Is this domain name registered? Asked of the registry over RDAP, with the standard first-year and renewal price when it is free to register.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "domain": "github.com"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "_shape": "data: available (true/false; null when only DNS could be checked, then likely_available), registered_on, suffix, source (rdap/dns), confidence, price{registration_usd, renewal_usd, registrar, note}, caveat."
              },
              "receipt": {
                "charge_usd": 0.005,
                "rail": "x402",
                "settlement_tx": "0x…",
                "tool": "available"
              },
              "result": "Domain availability 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": "2026-10-27T19:58:36.212Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-27T19:58:35.885Z"
    },
    "resource": "https://how.is/v1/domain/available",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Is this domain name registered? Asked of the registry over RDAP, with the standard first-year and renewal price when it is free to register."
}

What the leaf hashes

{"body":"5fdf933807836d9abf4362e4abbd7397322f3477c1d001b86aab396f73827206","id":751982,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178798550902,"prev":555644,"subject":"x402_bazaar:https://how.is/v1/domain/available","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0xc870211c06c1401e6ef79a36da8775a8d0b14252a9af2ee9f22f94674d9a3d85
2. 0x1f5b58af439abb0442049e1f6ab53bd27e53077c7f7af3f03fa2f8401c795394
3. 0xd6d6551e68dfd191618ec2a89c881be87c232e9bf741ccec73c3ecb4f1aa2521
4. 0x7cfef91437bbfbd0b8da8f1643d9c3964d477bc1d3977135c50d8d00f499233f
5. 0x13e5792db3ddcaa52a0b7529ceadf382cdf1ed3f5577f5cebe71e80e5af0a7f0
6. 0x429d4cab6d36a92ea21e11f7c8561c75d19202a5756c2ac6a082be4b1b8d9b51
7. 0x24dd7d013a15e22f26c554ae7e5f76867bc4a7f9d0cf9228a69675019843e139
8. 0x004629b627419ac41702b3396df581e00908a474f1a57d21c6820cc2f16bc669
9. 0x761f88ecef9f63c85c652a2713ccab674e10dc97a30b0eaa5c91b861d15ef35e
10. 0xb87dc341811996b5fdc637bc965a1c44d52800be252462ae26bf02fa689dbff9
11. 0xc226b31512a7b8df6fa03fe0c3eac0fa8a50aa90e10ef08e66314993281dd213
12. 0x4a243266328b748b77feea27d81730e25ab3bb67e7d665543bbf624e2632d6d3
13. 0x1f99df47306e7104ac9c626f7183c80611a0f90b978c68f0770fd8379ecbaeb9
14. 0x8e49280a62bd5d52127f332ab6aea9d7c57381f541e0178094a62272a9d2e741
15. 0x6d86d2282dd724b1b80d031e4e3cf9ed095b746e38c9e58d933efb597daff87f
16. 0x32beeeb960280bc48748681cb10297ede9403461fe9c8143fdf946548e552926
17. 0xe08e8bd91858a8a10c46ecde9c29a6288b960987303173c5e882afb46ce91fa0
18. 0xe6cfe00ae4e02bc12327e45b5f3334ea5850ba3bcc8e3101d30a8189856a95af

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae