Evidence row 72303

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://checksum.openverbs.com/v1/adler32"
    ]
  ],
  "name": "Adler-32",
  "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": "Adler-32 checksum (as used by zlib) over the input payload. Faster than CRC-32 but weaker for short inputs. Returns the checksum as an unsigned integer and 8-digit hex. Non-cryptographic.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "data": "example",
              "encoding": "utf8"
            },
            "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": {
                    "data": {
                      "description": "Input payload.",
                      "maxLength": 5000000,
                      "type": "string"
                    },
                    "encoding": {
                      "description": "How to decode `data`. Default utf8.",
                      "enum": [
                        "utf8",
                        "hex",
                        "base64"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "data"
                  ],
                  "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": "2026-10-05T13:12:58.434Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-05T13:12:58.151Z"
    },
    "resource": "https://checksum.openverbs.com/v1/adler32",
    "serviceName": "Adler-32",
    "tags": [
      "adler32 checksum",
      "calculate adler32",
      "zlib checksum",
      "adler32 api",
      "fast data checksum"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Adler-32 checksum (as used by zlib) over the input payload. Faster than CRC-32 but weaker for short inputs. Returns the checksum as an unsigned integer and 8-digit hex. Non-cryptographic."
}

What the leaf hashes

{"body":"eeac236a47105c1e8af593ba1ab7a1e1f9a5896fe0a9eabc3e0470e93337a202","id":72303,"kind":"listing","method":"baseline/1","observed_us":1793025485614142,"prev":null,"subject":"x402_bazaar:https://checksum.openverbs.com/v1/adler32","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. 0x5b4387181127ecfe35ef4ec34fefe4a25de4c8079b427c137bae4700d7088414
2. 0xf8105eb0c0a521bfb9985cb077ecd3d0cabccbe20cdc2244b577e3d1246f2849
3. 0x80ed62f873d1b3abebfbeb8419f51b96e15fbf9f0590511e79248534f533a28f
4. 0x506c0b6429cddd4789482029aac945e397122ca2d70d2029336e6257f6701d93
5. 0x039eeac3a6c22be4a592e00be2ee13d6ba7bcb853aff9e2c70f67bf5a3b93848
6. 0x9e68848efbfc6b763e193c0edd2bbf4b75304d87ea9aa5e0708705f708bf2e7b
7. 0x82115b8f44fd0204a1808f3ce5332456ff2848b7f937db60b9447915913cddcd
8. 0xefb4daf579169226230604952346cff66d2cdd7ae99249672dfb4bd3294134c0
9. 0x8d0bd3baaa8fbba8c2d7df70045aa5170bafa3e9908d8f865d799d6bf3162ad5
10. 0x3a905df6e7d9d413c4aff72b3831488fc24fa642cf9278ec5d44adbae8b73cb5
11. 0x37fa4d73456b07df68aa870df84ffd5c60272595484ae0f1ec31434e6c19eb44
12. 0xc4c7772b121e7eab8b40f10646f850453150d76d672e4926bf2534db20273157
13. 0xc8abb13c711b67d9f1ef145286ed450a0f5566f054a4b290ea3d711873bcbe20
14. 0x5cdeb4648502e0633d01cc4f3379d48cccb9d4f528565b2868eb93db0df9e829
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae