Evidence row 60276

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://21millionpixels.art/api/agent/paint"
    ]
  ],
  "name": "21millionpixels.art/api/agent/paint",
  "owner_address": "0xdd666cdcf2bccff8d1c8161ed24ff26c0ed429b9",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0xdD666CDCf2BCcff8D1C8161ed24FF26c0ed429b9",
        "scheme": "exact"
      },
      {
        "amount": "5000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxTimeoutSeconds": 60,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "EyktjqCmoUgWGpFfBf5FCGPcXJVdv31MTVN9gcs5rZgP",
        "scheme": "exact"
      }
    ],
    "description": "Paint one pixel on 21millionpixels.art, a shared 21,000,000-pixel canvas. Reads are free; paid pixels skip the human cooldown.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "color": 3,
              "username": "my-agent",
              "x": 2500,
              "y": 2100
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "changed": true,
              "color": 3,
              "ok": true,
              "paidTo": "0xdD666CDCf2BCcff8D1C8161ed24FF26c0ed429b9",
              "payer": "0x857b06519e91e3a54538791bdbb0e22373e36b66",
              "plot": 105250,
              "plotOwned": false,
              "settled": true,
              "transaction": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
              "username": "my-agent",
              "version": 1234,
              "x": 2500,
              "y": 2100
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "color": {
                      "description": "palette index; 1-32 for everyone, 33-108 for wallets that own a plot, 0 clears the tile. GET /api/info lists the hex values and which indices are retired",
                      "maximum": 108,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "username": {
                      "description": "optional; the name this wallet paints under",
                      "maxLength": 20,
                      "minLength": 3,
                      "pattern": "^[a-z0-9_-]+$",
                      "type": "string"
                    },
                    "x": {
                      "description": "column, 0 at the left",
                      "maximum": 4999,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "y": {
                      "description": "row, 0 at the top",
                      "maximum": 4199,
                      "minimum": 0,
                      "type": "integer"
                    }
                  },
                  "required": [
                    "x",
                    "y",
                    "color"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "headers": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "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": "2026-10-23T23:30:51.264Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-23T23:30:50.8Z"
    },
    "resource": "https://21millionpixels.art/api/agent/paint",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Paint one pixel on 21millionpixels.art, a shared 21,000,000-pixel canvas. Reads are free; paid pixels skip the human cooldown."
}

What the leaf hashes

{"body":"880dc8a1d1f61affda09e509e9d7c69e752e8d01cd08e9f0d6eda94c76cac7cb","id":60276,"kind":"listing","method":"baseline/1","observed_us":1793025448208910,"prev":null,"subject":"x402_bazaar:https://21millionpixels.art/api/agent/paint","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. 0x22b3758036b1f0d2212d2f003a85d64605e3f200eb7014976002e3b9dfea94e1
2. 0x22a9bd657b86fbe261af895e685a4b6ab23e59eb0125c781b613c5a842d6c95e
3. 0xce37596dd9caa35f4cdf45da560e774cfd23aef289e33dc39f3537d89cc5d94e
4. 0x2565fc6641a31223c38d144b8db77c72bcc23b785116c8220f4e0b79fc9dd884
5. 0x6716db4346a6b32ff00fb9f7b1986392744493e220c9139a504fbda61b69f5c9
6. 0xc58b74b99b957b588dfa013c967ef6023a8aeec4d6129ae6bfd8a94ecb92089b
7. 0xe00f4354d3767e0027885dd9b083e7e353ed382d0c98fa73f8e57252d230b4e1
8. 0xec9f85364865c9f801b355e7c742aea1b4bb8d1487b58d99fef17c8be9d6f076
9. 0xc4d31746ee4009607b818b075e9b119d44593a4f85049ab30bc82550557369b7
10. 0x7836a5556966cf30ecd08c3d2e71317aa77f32634124306502017aed314b7f61
11. 0xafd0058f5459c39aa93b8bea4d66dcde1a2763032ab59f971a1c12b8652db90b
12. 0xac5b705d705b0f1bc42cf2ad1a7f1f197ea96178ce0704432cbb5d556e8671a4
13. 0x9d75d4d3ab6219edefa04be60b32fdd56be7a7672f370a5115f02f7b098ecd27
14. 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae