Evidence row 548476

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-hash-api.vercel.app/sha256"
    ]
  ],
  "name": "x402-hash-api.vercel.app/sha256",
  "owner_address": "0x8686bd9bc270df09240e7d220a4bd4c627dccb03",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x8686bd9BC270Df09240E7D220A4Bd4c627DCCb03",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "2miRk3MikF5Uetgkd7o9MY7W6BESUaQTkDFupDZVPBym",
        "scheme": "exact"
      }
    ],
    "description": "SHA-256 hash — compute a SHA-256 hex digest of a text string (sha256 hash / cryptographic hash).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "data": "hello",
              "encoding": "utf8"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "algorithm": "sha256",
              "digest": "..."
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "data": {
                      "description": "payload to hash",
                      "type": "string"
                    },
                    "encoding": {
                      "description": "utf8 | hex | base64",
                      "type": "string"
                    }
                  },
                  "required": [
                    "data"
                  ]
                },
                "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": "2026-10-27T10:16:43.088Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 5,
      "lastCalledAt": "2026-10-27T10:16:42.291Z"
    },
    "resource": "https://x402-hash-api.vercel.app/sha256",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "SHA-256 hash — compute a SHA-256 hex digest of a text string (sha256 hash / cryptographic hash)."
}

What the leaf hashes

{"body":"f65836d163344c80c432b90a9ac368f36fb0ef4e1626ee066623e2e781a638a0","id":548476,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133306623545,"prev":453370,"subject":"x402_bazaar:https://x402-hash-api.vercel.app/sha256","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. 0xd4c5857ca068ffe22bf1e1183cd6bd795e2b07cf36e02e270e46efdec51138fa
2. 0xdd18a490dd0df6172f781f642508fcd524184bf5964eb89374947046d73199e1
3. 0x53bf0f40d4246e6b5b0ed85b3d4abd09c0c32e41d92e2db1f8d38e2a7f242f5f
4. 0x159b90a95e82a1ff82364ab8ae3bb707e9364c4093aebaa3b09fac2e5b166d5f
5. 0x86e5f47ba7d7eb7e5d8552047802883bb98af252dacef92e00b623d421b4d861
6. 0x37b5e6a0bb5cac86f1d4adf333438accd8fef87ef0f78bde187b498bb5e4a5fa
7. 0x55586847c8eb793bc57cacd1418e02c01e8063f360aefe7d71a16e55c8517ecf
8. 0x2a8ffce98e0f3d907eb4b3f12c88269aed05b760b220982272f78470d7cc7ea7
9. 0x5cba9a089896f78e0ee5482880716c4e9b678becf6cc7bd6c98c4ca69e3505c1
10. 0xb2c9fd2cbd2be2029da1f9d85a500b831a0507567d9d4ee91005df2d2ad7b9fa
11. 0xb260f65f574273b29152a0381cb63c4d5e250d7b6498b9b4f5aaf104e094e9d8
12. 0xba42125112c82614fda070baa3201b37bda47b7485d074641cdd174984f8ddaf
13. 0x3b3e4fecead12aaf883ab4f21b6e21efddd0a8d055ced058cb62bcdca8a6c9d6
14. 0x8f676edfb4faaa290229d8f4f69ab721fc627424463d62f5146b3d1ca7f2f0c6
15. 0x969cd44e5a4e8dc3110540398fbf689659eb51df735c1cda5d8f021ef9ff5683
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4