Evidence row 526744

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-gateway-production-1f21.up.railway.app/hash"
    ]
  ],
  "name": "x402-gateway-production-1f21.up.railway.app/hash",
  "owner_address": "0xf7eb4b12d673df433d76b2dbd9ca41db3fe1836e",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 90,
        "network": "eip155:8453",
        "payTo": "0xF7Eb4b12D673dF433d76B2DBD9CA41Db3fE1836E",
        "scheme": "exact"
      }
    ],
    "description": "Compute SHA256 hash or SHA-512, SHA-1 and MD5 checksums for UTF-8 text and return hex plus Base64 digests. Use for SHA256 hashing, checksum verification, integrity checks, content fingerprints, cache keys, deduplication and agent pipelines.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "algo": "sha256",
              "text": "hello world"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "status": "ready"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "algo": {
                      "description": "Hash algorithm; defaults to sha256.",
                      "enum": [
                        "sha256",
                        "sha512",
                        "sha1",
                        "md5"
                      ],
                      "type": "string"
                    },
                    "text": {
                      "description": "Text to hash.",
                      "maxLength": 250000,
                      "type": "string"
                    }
                  },
                  "required": [
                    "text"
                  ],
                  "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"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T10:16:30.05Z",
    "quality": {
      "l30DaysTotalCalls": 37,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-27T10:16:29.85Z"
    },
    "resource": "https://x402-gateway-production-1f21.up.railway.app/hash",
    "tags": [
      "hash",
      "sha256",
      "sha512",
      "sha1",
      "md5"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Compute SHA256 hash or SHA-512, SHA-1 and MD5 checksums for UTF-8 text and return hex plus Base64 digests. Use for SHA256 hashing, checksum verification, integrity checks, content fingerprints, cache keys, deduplication and agent pipelines."
}

What the leaf hashes

{"body":"e12103260d39f465a8d2382a3363fdd75eebc8025267694501d43d24e5b8db87","id":526744,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124791310601,"prev":451810,"subject":"x402_bazaar:https://x402-gateway-production-1f21.up.railway.app/hash","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. 0xeedf7bad4b4e3bbf00d6968a502738a60549f475b024817d97a4781b411a973f
2. 0xc1d762d1ab44c416d1bec2d14f0f40ef7a16ab317ceb233cd663977f8235aa72
3. 0x05ffb65decf1230be25100a2219cb9533828bc21095e13036c67fd928380dfbe
4. 0xcd8a2786556eef5ffb107097c90e9e6df3ceed9ab09974badf8f12cb108a06be
5. 0xf83f92f8e5c5f7e10dc06ef270b28b24c521d97eb6df7ead9faa122170311903
6. 0xe7d37839954eb6ab75a35ec74829e0b73859e21a773e74493c87b687ce3d08c5
7. 0xeb88a6f21abd8b0bd827a6d52799b5bc7fe05a8bbd17385365f92f24f567df95
8. 0x72c4f91f64eb1518ea919abd9b51b1263bbe33fb548e88fb43824123086f2326
9. 0xea0703842e146f38a877f41b7b5d826da0e310267d25a82662764ad9b1a65994
10. 0x7822c4b652255b3b973e1d15069be7538a6a787558f35d1947b363ffe4129717
11. 0x1b4399bae757271424da8a4da03b907adf56af6574a865598cf68ad834ce7e01
12. 0xc0448a83784154aec794ac7a249e46b6f618529dfd246ef492240c5d9b62d921
13. 0xe0ddf3e1c8349b7fe55d4b2a6864486a77de3e3c0e371df44d69aeb837cfd79c
14. 0xce1471491ffb52101d7cd9884cca0fb37a9496f6e8250375054907d24a35d04f
15. 0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4