Evidence row 278532

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://www.oracleinsight.xyz/api/v1/safety/pre-trade"
    ]
  ],
  "name": "www.oracleinsight.xyz/api/v1/safety/pre-trade",
  "owner_address": "0x5fbbbcbf2ade44f5c604e5e55f11945e1addd231",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x5FBbbCbF2Ade44F5c604E5E55f11945E1ADdD231",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:137",
        "payTo": "0x5FBbbCbF2Ade44F5c604E5E55f11945E1ADdD231",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:42161",
        "payTo": "0x5FBbbCbF2Ade44F5c604E5E55f11945E1ADdD231",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:143",
        "payTo": "0x5FBbbCbF2Ade44F5c604E5E55f11945E1ADdD231",
        "scheme": "exact"
      },
      {
        "amount": "20000000000000000",
        "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:56",
        "payTo": "0x5FBbbCbF2Ade44F5c604E5E55f11945E1ADdD231",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
          "lastValidBlockHeight": "439803142",
          "recentBlockhash": "Gq3jPz3g3buRe85q2ZX4Ch1ZWPzMT8JpY9g9CvUrBnFX"
        },
        "maxTimeoutSeconds": 60,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "BfVX9jcEALijnEuGPcGTjqjBgTFLTFMt6F7NrMHzGWf4",
        "scheme": "exact"
      }
    ],
    "description": "Pre-trade safety check: oracle-immune-system verdict for one trade, with verifiable EIP-712 attestation support. BLOCK verdicts are complete checks and are charged.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "action": "swap",
              "asset": "ETH",
              "chainId": 1,
              "tradeAmountUsd": 1000
            },
            "type": "http"
          },
          "output": {
            "example": {
              "consensusPrice": 3124.5,
              "crossProviderAgreement": 0.998,
              "manipulationRiskScore": 0.08,
              "maxDeviationPct": 0.42,
              "participantCount": 5,
              "recommendedMaxPositionUsd": 95000,
              "staleDataRisk": false,
              "verdict": "PASS"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "action": {
                      "description": "Type of DeFi operation",
                      "enum": [
                        "swap",
                        "borrow",
                        "lend",
                        "liquidate",
                        "repay"
                      ],
                      "type": "string"
                    },
                    "asset": {
                      "description": "Asset symbol, e.g. ETH, BTC, USDC",
                      "type": "string"
                    },
                    "chainId": {
                      "description": "Chain ID, e.g. 1=Ethereum, 0=chain-agnostic",
                      "type": "number"
                    },
                    "destinationAsset": {
                      "description": "Optional destination asset symbol (v2 binds it as destinationAssetId)",
                      "type": "string"
                    },
                    "protocolId": {
                      "description": "Optional lending protocol id to evaluate against (e.g. aave-v3-ethereum)",
                      "type": "string"
                    },
                    "schemaVersion": {
                      "description": "Attestation schema version: 1 (default, 11-field), 2 (26-field, CAIP-19 + quorum gate), or 3 (27-field: v2 + the signed independence threshold, so the gate is self-verifying)",
                      "enum": [
                        1,
                        2,
                        3
                      ],
                      "type": "number"
                    },
                    "targetProviders": {
                      "description": "Comma-separated list of oracle providers to restrict the check to",
                      "type": "string"
                    },
                    "tradeAmountUsd": {
                      "description": "Trade size in USD",
                      "type": "number"
                    }
                  },
                  "required": [
                    "asset",
                    "chainId",
                    "action",
                    "tradeAmountUsd"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T19:04:20.099Z",
    "quality": {
      "l30DaysTotalCalls": 52,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-24T20:29:25.298Z"
    },
    "resource": "https://www.oracleinsight.xyz/api/v1/safety/pre-trade",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Pre-trade safety check: oracle-immune-system verdict for one trade, with verifiable EIP-712 attestation support. BLOCK verdicts are complete checks and are charged."
}

What the leaf hashes

{"body":"be55167ac3d6e74977638c539bf77e0fc9849bd9f1c38c71c634004a7f7e2e6a","id":278532,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042077556489,"prev":124556,"subject":"x402_bazaar:https://www.oracleinsight.xyz/api/v1/safety/pre-trade","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. 0x80bd5ab06c76165df201101dc610160a9ccf07ca035e12c6fcb060a75905c3b2
2. 0x6167956695499eb1ae84ba56d5dd07db7669e3c6562f23799a17bf6585b6685b
3. 0x4e780b9c8c11a082169b4d096cfb5d66550c3772b66d8bdefe6bb7a9a384feba
4. 0xdf299c796dec1dfe0c33a5e8b3a0da20228d7420a32ad71211b861eeb012966d
5. 0x6608ed9a8971240037e6921eb70ddc7e910d805a9b70f657e1d4629e9df01c37
6. 0xaea3027f04f99ea96801413f3906dc84d358fc5ba0372d3732ffaf3a4a211c7b
7. 0xe7a6593de257ff53259a3409983ae2bacb040da7386fa9b2b10008616d7770e4
8. 0x562029970ffad822b0ec440c503f78e29f2587bd79e91bf50f9bd59cee75ad10
9. 0xdafb5a8c55f43e531a22975d02397685ba7d758ee272ba3d5841772ecb9f8d82
10. 0x836b84f8e93674b08861122bb833431f014aff63ef724715df187e6998b02882
11. 0x62490dd1c15d5301c6fb2c08f1d6ceb3a0d4c216f6e742424332881907db0fcd
12. 0xb9c4107c5cbaf0844324e5ba287c90e0643bb7b9e48e7877adda9372132cf0ea
13. 0x4d2ee986a690e903126f449b4e9e62d5572b350357ab4496a83488949b131c29
14. 0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae