Evidence row 123152

Observed 26 Oct 2026, 14:40 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://twin.unykorn.org/hash-keccak256
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: bbb905d11447262981723fa6c7e00a127512a574484a1fd3606621b5f0a52f85
Leaf: 0xca91842f3488f2cb6d30068329e14904362f3b2f8917d0948eb8da8af34e60a2

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://twin.unykorn.org/hash-keccak256"
    ]
  ],
  "name": "twin.unykorn.org/hash-keccak256",
  "owner_address": "0x7d9a65d06dcc435a52d5880c6310bd6e96c156db",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxAmountRequired": "3000",
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxAmountRequired": "3000",
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "52EqTZigRAnBphuYAuREjQJx5H5ryyc1RETpDR2dZFQp",
        "scheme": "exact"
      }
    ],
    "description": "Ethereum keccak256 — the original Keccak, not NIST SHA3 — Genesis402 / UnyKorn Operator Network",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "params": {
                "text": "transfer(address,uint256)"
              }
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "generated_at": "<iso8601>",
              "ok": true,
              "receipt": {
                "amount_usd": 0.003,
                "receipt_id": "g402-<16hex>",
                "tx_hash": "0x<64hex>"
              },
              "type": "hash-keccak256"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "body": {
                  "properties": {
                    "params": {
                      "properties": {
                        "hex": {
                          "description": "0x-prefixed hex data",
                          "pattern": "^0x[0-9a-fA-F]*$",
                          "type": "string"
                        },
                        "text": {
                          "description": "UTF-8 text, up to 48 KiB",
                          "maxLength": 49152,
                          "type": "string"
                        }
                      },
                      "type": "object"
                    }
                  },
                  "required": [
                    "params"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-06T10:07:16.7Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-06T10:07:16.584Z"
    },
    "resource": "https://twin.unykorn.org/hash-keccak256",
    "tags": [
      "hashing",
      "digest",
      "deterministic",
      "integrity",
      "keccak256"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Ethereum keccak256 — the original Keccak, not NIST SHA3 — Genesis402 / UnyKorn Operator Network"
}

What the leaf hashes

{"body":"bbb905d11447262981723fa6c7e00a127512a574484a1fd3606621b5f0a52f85","id":123152,"kind":"listing","method":"baseline/1","observed_us":1793025622797651,"prev":null,"subject":"x402_bazaar:https://twin.unykorn.org/hash-keccak256","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).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON