Evidence row 555644

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": {
      "lastCalledAt": "2026-10-27T19:58:36.212Z"
    },
    "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":"896a84f6d12fbc2d643c119bd08865a657057ac025fad6cdd4f99f2d693c0195","id":555644,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133801010036,"prev":null,"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 2026-10-27 (273461 rows).

1. 0xed4d082013bcd9aa9c82754765cccd013b53643d737a69e0b0c2ef7dc0bb2748
2. 0x2715544414fb6b1e82da38db3deb89d701bb5433df838e123da5eb702f029935
3. 0xb2c4aaccb35a2b5d85b1ecb12a903a01318acea55d25e9848cbba61b30205422
4. 0x30c1b813322f5bc73f6b1b881da33887c2fc8e0d4acc7a4abeb3afcb23509da8
5. 0x0c6017f65959e008967ed0afaa0ecdd97dfffd0ca9ecc2da85f39c80fbf913a1
6. 0x99b20b74e7d9167695743ae0563105732d0e7aecbdfcae89d8eb441057a9c678
7. 0xade96f1b3b80767dce81a5c2a0479ad5d6abccfe43226727b7c5838fdc2b3843
8. 0x05376c45a8e8fd4993b9a19e39e12af558346ce9258780edbfb194bba6b5b610
9. 0x047641be305aa58742e9c24ce5c236b92ab9a859b5dfd207fbf2624cb08db96b
10. 0xaa641459302adde22dc32481fb241cabfec0126d1840e00062addb5172888cb4
11. 0x0a78a08a4d8ea932d1929a4db7274efa66e37530ebf9892f88bad1aa94953b78
12. 0x1bd815b8c338cfc2bcf769f9c67988a5890577c27b5e900948b5339a99e158a8
13. 0x89602081fbcc80aef8908f5df765767a1a41cc8b089111259ea78e6583a8bc4b
14. 0x41f9f462759cb539183e979fb3eb967d94755cf039c44a64a9a3c4ad97523cfd
15. 0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4