Evidence row 2202422

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://payperwork.app/ai/v1/chat/completions"
    ]
  ],
  "name": "payperwork",
  "owner_address": "0x707117d13dfba0f091e909582021ab2a5465be3a",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x707117d13DFBa0F091e909582021Ab2A5465Be3A",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "permit2",
          "facilitatorAddress": "0x8CDA367232d78c067116e3260da881d2da8ffa39",
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x707117d13DFBa0F091e909582021Ab2A5465Be3A",
        "scheme": "upto"
      }
    ],
    "description": "OpenAI-compatible chat completions on frontier models: GPT-6.1 Sol and Terra, GPT-5.5, Claude Sonnet 5.5 and Haiku 5.5, Gemini 3.8 Flash, Grok 4.7, GPT-6 Luna.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "max_tokens": 64,
              "messages": [
                {
                  "content": "Say hello in five words.",
                  "role": "user"
                }
              ],
              "model": "anthropic/claude-haiku-5.5"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "choices": [
                {
                  "finish_reason": "stop",
                  "index": 0,
                  "message": {
                    "content": "Hello there, nice to meet you.",
                    "role": "assistant"
                  }
                }
              ],
              "id": "chatcmpl-123",
              "model": "anthropic/claude-haiku-5.5",
              "object": "chat.completion",
              "usage": {
                "completion_tokens": 8,
                "prompt_tokens": 12,
                "total_tokens": 20
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "max_tokens": {
                      "type": "integer"
                    },
                    "messages": {
                      "items": {
                        "properties": {
                          "content": {
                            "type": "string"
                          },
                          "role": {
                            "type": "string"
                          }
                        },
                        "required": [
                          "role",
                          "content"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "model": {
                      "type": "string"
                    },
                    "temperature": {
                      "type": "number"
                    }
                  },
                  "required": [
                    "messages"
                  ],
                  "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"
        }
      },
      "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"
        }
      }
    },
    "lastUpdated": "2026-11-01T19:04:46.13Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-01T19:04:45.603Z"
    },
    "resource": "https://payperwork.app/ai/v1/chat/completions",
    "serviceName": "payperwork",
    "tags": [
      "ai",
      "llm",
      "inference",
      "chat",
      "agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "OpenAI-compatible chat completions on frontier models: GPT-6.1 Sol and Terra, GPT-5.5, Claude Sonnet 5.5 and Haiku 5.5, Gemini 3.8 Flash, Grok 4.7, GPT-6 Luna."
}

What the leaf hashes

{"body":"70a46eeef78e48069feedb09c1c37cc8ccab2da48490c349bbc6a7ac17620428","id":2202422,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646816173733,"prev":1790843,"subject":"x402_bazaar:https://payperwork.app/ai/v1/chat/completions","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x9f7ab5fde0f9c48af12408387148c280a66ea11df36a7ceabd37e88c04c83f72
2. 0xe537d5d8a85fe457f1c3f35cd46287b43a67c7f43abd7fc79d569343af220eb6
3. 0x23432eeeda4618c17caf15ca7f2d57bb2edf2607838d1cc6c6998075023c7392
4. 0x91c4e64fd679ec55f9813f5d9d0998766b4349e10cae8191b2bd396affcbde0b
5. 0xc9a97010c6180f22d1dd79f5c9f7aa76e5c7b9e8ddff171a6ffd93ca5b82ea49
6. 0x784f82a6127991f2e6525352eab3e5e466e3bf8597bf96f21c2b019f255e019f
7. 0xc349edeaa9dbb2c80c19ae79ae2087c19f3163b42429d73d6bbb48d4be97f08d
8. 0xedbec2b8f3fed1d5a8be5b34a4ba2a010232bc90a46b33d82971e71548984971
9. 0x850150b4433e2a5013bb088bc315f06c7856b64588141749872680f991ab1d57
10. 0x8f71a5648f0501ec96fef753772826965de984f442d9379bd3dcb002725bc757
11. 0x21ed42ef9d4b969ab9323d61271dc9de4354686276c10894ed97a393503c9e42
12. 0x276e2fa0c21c2220acec5005667f6b7cfa183a8daaf7f317e5077bc4c6e08db0
13. 0x2ff7b1db58554b94f3d17b53c4f892ded109f497ad86eeaa0f83588921b759b1
14. 0xdff61622855886d80ecda4fb808422c854d0801605b73184332cf83604a730ff
15. 0x9c91ecb84461aa4cb2a891252746755d862a88fe9bad822700cdb99eaab2edca
16. 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
17. 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af