Evidence row 123567

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://upgrade-brief.shopttyass-85f.workers.dev/mcp"
    ]
  ],
  "name": "upgrade-brief.shopttyass-85f.workers.dev/mcp",
  "owner_address": "0x4e2bca3826e930c2c984b7abb299b5812d5075ea",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0x4E2bca3826E930C2c984B7Abb299b5812D5075Ea",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "BRPU1mcPKaag1LxajqUX6BiKFfXxbEZnkFP7QsaZeRXx",
        "scheme": "exact"
      }
    ],
    "description": "npm changelog between two versions: full release notes of every version in the range (newest first), with dates, bump type, deprecations, extracted breaking changes and package.json changes.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "description": "npm changelog between two versions: full release notes of every version in the range (newest first), with dates, bump type, deprecations, extracted breaking changes and package.json changes.",
            "example": {
              "from": "4.1.2",
              "package": "chalk",
              "to": "5.0.0"
            },
            "inputSchema": {
              "properties": {
                "from": {
                  "description": "Current version (exact or prefix)",
                  "type": "string"
                },
                "maxVersions": {
                  "type": "integer"
                },
                "package": {
                  "description": "npm package name",
                  "type": "string"
                },
                "prereleases": {
                  "type": "boolean"
                },
                "to": {
                  "description": "Target version, default latest",
                  "type": "string"
                }
              },
              "required": [
                "package",
                "from"
              ],
              "type": "object"
            },
            "toolName": "npm_changelog",
            "transport": "streamable-http",
            "type": "mcp"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "description": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                },
                "inputSchema": {
                  "type": "object"
                },
                "toolName": {
                  "type": "string"
                },
                "transport": {
                  "enum": [
                    "streamable-http"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "mcp",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "toolName",
                "inputSchema"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-22T13:57:39.12Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-22T13:57:37.883Z"
    },
    "resource": "https://upgrade-brief.shopttyass-85f.workers.dev/mcp#npm_changelog",
    "type": "mcp",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "npm changelog between two versions: full release notes of every version in the range (newest first), with dates, bump type, deprecations, extracted breaking changes and package.json changes."
}

What the leaf hashes

{"body":"dacea9ad052a7aaaed72f8b370420d9af827a14c2efb33b03d585e56e781a1b0","id":123567,"kind":"listing","method":"baseline/1","observed_us":1793025623326709,"prev":null,"subject":"x402_bazaar:https://upgrade-brief.shopttyass-85f.workers.dev/mcp#npm_changelog","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. 0xa5f07e454d74aca759a44f390d31afa8c4ddfb6b4de726c09f09ec6d881944ad
2. 0xab6e5bebdbe25439c6c13d7b3c19c56433a052b2e0d979d9b504dedeb3b2da17
3. 0x6c331507beb72007b268f3c97c17edf069b9ba551c51056e613e3e5eb097d1a7
4. 0x89c7e47749d037bbd11eaf259759dfd1d160c76865b9693e3d8673fe3e2b7ce8
5. 0xfc72f2a6d13505d8a512707dd066fffce72ba9945735ffa949e43e14b02c6c0f
6. 0xb14d6eb86edfc5eb820f2fef1fb18377588fa4868f845f5b2961f9b0cdbae372
7. 0xaba54720e941a27850174d36c79a6daf8cc1f36f6b5f703a35ecea4745e2b626
8. 0xdbbde2f72e5a041d4f117f1bbaf9635d23837e315cd7f6fa5e3799569ceade81
9. 0xa77958e153943a895f1beb52fba3929bfedafb69f1e9d958d6f4b9a972909969
10. 0x33d703f598c504ec2e707e9e28f8a7d8d8905961d218b5b3fe1041ecd10ed9d3
11. 0xf237135c66ca84b49bee4316c469fc0289ef400162349fc2344fca1bb98dbd0e
12. 0x21725c62783071369e87d9e0abedb3d8cc37bdab8d0d58308c28aeb7cfd2bc8c
13. 0xc34c13c58ba9c342ea1b833ac1882a4aea22777c4fd1092b2f83d3bac6b9f845
14. 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae