Evidence row 65836

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.cra-agent.tech/v1/upto/think"
    ]
  ],
  "name": "CRA AGENT think",
  "owner_address": "0x33b37c6d7a98b58da3ccb3f36a4b578053d0ea74",
  "raw": {
    "accepts": [
      {
        "amount": "100000",
        "asset": "0x3600000000000000000000000000000000000000",
        "extra": {
          "assetTransferMethod": "permit2",
          "facilitatorAddress": "0xf3b533226162224F783D0cC18E642F16bce369BD",
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:5042",
        "payTo": "0x33b37c6d7a98b58da3Ccb3F36A4b578053d0Ea74",
        "scheme": "upto"
      },
      {
        "amount": "100000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "permit2",
          "facilitatorAddress": "0x4c934c63C786157Fefd990945b25eA60a0FB0205",
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x33b37c6d7a98b58da3Ccb3F36A4b578053d0Ea74",
        "scheme": "upto"
      },
      {
        "amount": "100000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "paymentFlow": "escrow",
          "receiverAuthorizer": "9dpHxn3XFZMZv59vE5MKxhfwGUCCgkcCUzYZLpdEm7ox",
          "tokenProgram": "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA",
          "withdrawDelay": 900
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "26SsHut3dRbK9cWUJcrMfkKn3TKXSFMw61zyqm6tgWjK",
        "scheme": "upto"
      }
    ],
    "description": "Ask the thinking agent anything. It pays for its own thoughts and tools on Arc; you pay what it spent plus $0.005, up to $0.10.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "task": "What moved EURC against USDC on Arc today?"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "answer": "1. Circle launched Arc mainnet on September 16, 2026 (Circle press release). 2. Arc uses USDC as its gas token (Cointelegraph).",
              "charged": {
                "ceilingUsdc": "0.10",
                "feeUsdc": "0.005",
                "spentUsdc": "0.018265",
                "totalUsdc": "0.023265"
              },
              "spent": {
                "purchases": 1,
                "thinkingUsdc": "0.011265",
                "thoughts": 3,
                "toolsUsdc": "0.007",
                "totalUsdc": "0.018265"
              },
              "steps": [
                {
                  "costUsdc": "0.007",
                  "detail": "web search",
                  "kind": "buy",
                  "seller": "Exa",
                  "status": 200
                }
              ],
              "stoppedBecause": "answered",
              "task": "What did Circle announce about Arc this week? Two facts with sources."
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "task": {
                      "description": "What you want answered, 3 to 500 characters.",
                      "example": "What moved EURC against USDC on Arc today?",
                      "type": "string"
                    }
                  },
                  "required": [
                    "task"
                  ],
                  "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"
        }
      },
      "eip2612GasSponsoring": {
        "info": {
          "description": "The facilitator accepts EIP-2612 gasless Permit to `Permit2` canonical contract.",
          "version": "1"
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "amount": {
              "description": "The amount to approve (uint256). Typically MaxUint.",
              "pattern": "^[0-9]+$",
              "type": "string"
            },
            "asset": {
              "description": "The address of the ERC-20 token contract.",
              "pattern": "^0x[a-fA-F0-9]{40}$",
              "type": "string"
            },
            "deadline": {
              "description": "The timestamp at which the signature expires.",
              "pattern": "^[0-9]+$",
              "type": "string"
            },
            "from": {
              "description": "The address of the sender.",
              "pattern": "^0x[a-fA-F0-9]{40}$",
              "type": "string"
            },
            "nonce": {
              "description": "The current nonce of the sender.",
              "pattern": "^[0-9]+$",
              "type": "string"
            },
            "signature": {
              "description": "The 65-byte concatenated signature (r, s, v) as a hex string.",
              "pattern": "^0x[a-fA-F0-9]+$",
              "type": "string"
            },
            "spender": {
              "description": "The address of the spender (Canonical Permit2).",
              "pattern": "^0x[a-fA-F0-9]{40}$",
              "type": "string"
            },
            "version": {
              "description": "Schema version identifier.",
              "pattern": "^[0-9]+(\\.[0-9]+)*$",
              "type": "string"
            }
          },
          "required": [
            "from",
            "asset",
            "spender",
            "amount",
            "nonce",
            "deadline",
            "signature",
            "version"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1790868402/bazaar-icons/b54cadcdf7b27fb9.png",
    "lastUpdated": "2026-10-01T15:33:19.7Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-01T15:33:28.261Z"
    },
    "resource": "https://api.cra-agent.tech/v1/upto/think",
    "serviceName": "CRA AGENT think",
    "tags": [
      "agent",
      "research",
      "llm",
      "arc"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Ask the thinking agent anything. It pays for its own thoughts and tools on Arc; you pay what it spent plus $0.005, up to $0.10."
}

What the leaf hashes

{"body":"e7e2c425caaaa1b363a1173378855f030c7cb68665d194878823fbdb7bff6690","id":65836,"kind":"listing","method":"baseline/1","observed_us":1793025459266994,"prev":null,"subject":"x402_bazaar:https://api.cra-agent.tech/v1/upto/think","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. 0x5d2d8f5cba49d6cfc9d5753818bec6e9ae1797df98e16e5db8d41c67f6265083
2. 0xb916f1585c7ff5151c3d2cac837fd40804ed25e6ad8850d35ddcaba745f892ee
3. 0x929773c2452aa553199b2c5ae7db84f7d91c218ec9db291c451a3353e3be6894
4. 0xe83cce821192984403954fde88fe14c7a5b76e0eecf65f7c7b5f79f6a648e940
5. 0xdf44935a16ca9b3710bc4d7b615be57eca9d6090164afc9a23c707bd2aa1ea30
6. 0x8216e88be37ad9b81e2a580cd38e67faa97c7f0e3abb1a79cc27d760481edfd8
7. 0xa43f72ad748626b989e9ac431abccfce26ff4ac374654bb5723dd10c6e6f93d0
8. 0xf5c626e30e4ade9fc33b819ed022da91a7247d7a9ceef2ac7016e313ebdcf239
9. 0xe83b2a73139a45ac5e787f5f8d00e2fdb51ec0acd6751a60cbf0f65dfcfc455f
10. 0x71c75f9312be1c838a554f724b6fc57894e7c4486ab7e013b6a6a8d65cfaebea
11. 0xb91bf0ba3ebff769d1b88f93fcb076477149787a7e31c3c28ce4fe8823b7c144
12. 0x2121cc2dbcb8663af57743dc445c8a59e5bbfffe89703f0606c9843f0d35aff8
13. 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae