Evidence row 1507931

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://verdict.kechlab.com/v1/instruction-guard"
    ]
  ],
  "name": "Verdict 402",
  "owner_address": "0xb36c56a749f81ffeb44a134082dd4744e1d254eb",
  "raw": {
    "accepts": [
      {
        "amount": "8800",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xb36c56A749f81FFeb44a134082DD4744E1d254Eb",
        "scheme": "exact"
      }
    ],
    "description": "Before handing a user message to an assistant: does it try to push the assistant off its task or to pull out its hidden setup text? Code spots known phrases, encoded blocks and invisible characters; the engine reads disguised requests (role-play, fiction, rewordings). Returns allow, review or block.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "assistant_role": "customer support assistant",
              "prompt": "What are your opening hours on Saturdays?"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "mode": "instruction-guard",
              "paid_sats": 10,
              "payment_hash": "x402:<sha256 hex>",
              "receipt": {
                "payload": {
                  "at": "<ISO 8601 time>",
                  "kid": "<signing key id>",
                  "mode": "instruction-guard",
                  "payment_hash": "x402:<sha256 hex>",
                  "v": 1,
                  "verdict_sha256": "<sha256 hex of the verdict>"
                },
                "signature": "<base64url Ed25519 signature>"
              },
              "verdict": {
                "decision": "allow",
                "reasons": [],
                "rule": "block if 2 or more signals, or bypass >= 0.8, or extraction >= 0.8 ; review if one signal or a score >= 0.4 ; otherwise allow",
                "scores": {
                  "bypass": 0.01,
                  "disguised": 0.02,
                  "extraction": 0.01
                },
                "signals": []
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "assistant_role": {
                      "description": "(optional) the role of the assistant, for example customer support for a bank",
                      "type": "string"
                    },
                    "prompt": {
                      "description": "the user message to check before passing it to the assistant",
                      "type": "string"
                    }
                  },
                  "required": [
                    "prompt"
                  ],
                  "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": "2026-10-31T12:32:15.369Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-31T12:32:14.762Z"
    },
    "resource": "https://verdict.kechlab.com/v1/instruction-guard",
    "serviceName": "Verdict 402",
    "tags": [
      "prompt-injection",
      "guardrail",
      "ai-agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Before handing a user message to an assistant: does it try to push the assistant off its task or to pull out its hidden setup text? Code spots known phrases, encoded blocks and invisible characters; the engine reads disguised requests (role-play, fiction, rewordings). Returns allow, review or block."
}

What the leaf hashes

{"body":"b9771e44c43b456c16d39a00ac780dc3de33c4acff9a1274f37c7b683b1934ed","id":1507931,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793472705841074,"prev":null,"subject":"x402_bazaar:https://verdict.kechlab.com/v1/instruction-guard","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0x60324dec5e1173e051aaeee5ef48d182beec0837030a88b7ee646f6e01d74f14
2. 0x17edee5525047d5e54d17826b4b01eeaa1e1ac2a079fb6d037cd777c2d6e3718
3. 0x654d61565b739290998db41ff88ed8a7b2bec3bb4450975e1adc9fc3ef1b7138
4. 0x516a8a9af59b6e1b4c7ca936a4d33d046425c8d2c7e26826b158182a460b5e45
5. 0x6f4db1423fca69dd69d1fbc147d96d5fc546ba2930045aa63cc561db5dffc30b
6. 0xa7ba1d46c553b7e3ec15f407cab995a486cca14e547a588c9b44bf28deb06696
7. 0xe5258c29b5e904beca6b6d328c8d8bf5d2d3b8e6d3b1a9afa877212aee684fa5
8. 0x094e94aa6eba2a458f838565485eeeb09ae8a0ec98ee679af47ab06d0f4ac215
9. 0x69cc40bddf1179236f5cb4b24b989e7a59276fe9183ca92e1219aad95ee88426
10. 0xf9a4dda2c11159aa9a812bff372d0b37096e7d57f1b1d868f5df504ac17d4275
11. 0x35dd700307c7b96fcdc54dce42117e1dc30c97fbfe046cdd000d4db21d017fa2
12. 0xb050fb959229ce2d2752a2e58057828b1a49fa3aa1ed7ec678a5298072e25c59
13. 0x238075122bf391de34d3a894036bb855e1137942648f00143f9a686a726fcddd
14. 0xe765fc7bdfb534be348bf6984775b8261507431e58900f7a1ab269c53c5b1e8b
15. 0xb9a00c724331b305deaa876d5d2baf53b847ff3c7ce37abb0ae1653b2534aad5
16. 0xad4540f06e3fdfe46524d8592f8d854d4849e16217bc047eaf024f0abebe34b0
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0