Evidence row 295553

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Check up to 50 packages at exact versions (for example from package.json, package-lock.json, requirements.txt, go.mod, pom.xml, Cargo.toml or a .csproj) against OSV.dev in one batch. Returns a summary count and only the packages with problems: malicious-package flags first, then vulnerabilities by severity with the version that fixes each and the minimum upgrade target. Use when the user pastes a dependency file or list, or asks to \"audit my dependencies\" or \"check my package.json / requirements.txt\", or which dependencies are vulnerable or outdated. Entries without an exact version are skipped and listed; transitive dependencies are only checked if included in the list.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "ecosystem": {
            "description": "Default ecosystem for all entries. Package ecosystem: npm, PyPI, Go, Maven, crates.io or NuGet (aliases like pip, python, cargo, rust, golang, java, dotnet also work)",
            "maxLength": 20,
            "minLength": 2,
            "type": "string"
          },
          "packages": {
            "description": "Packages to check, each with name and exact version",
            "items": {
              "properties": {
                "ecosystem": {
                  "description": "Ecosystem for this entry; defaults to the top-level ecosystem",
                  "maxLength": 20,
                  "minLength": 2,
                  "type": "string"
                },
                "name": {
                  "maxLength": 214,
                  "minLength": 1,
                  "type": "string"
                },
                "version": {
                  "description": "Exact installed version, e.g. 4.17.15",
                  "maxLength": 80,
                  "minLength": 1,
                  "type": "string"
                }
              },
              "required": [
                "name",
                "version"
              ],
              "type": "object"
            },
            "maxItems": 50,
            "minItems": 1,
            "type": "array"
          }
        },
        "required": [
          "packages"
        ],
        "type": "object"
      },
      "name": "check_dependencies"
    },
    {
      "description": "Audit a whole lockfile or dependency file in one call, including transitive dependencies where the file records them. Paste the file content as-is: package-lock.json, npm-shrinkwrap.json, yarn.lock, pnpm-lock.yaml, requirements.txt (== pins), poetry.lock, uv.lock, Pipfile.lock, Cargo.lock, go.sum, go.mod, packages.lock.json (NuGet) or gradle.lockfile. Up to 3,000 packages are checked against OSV.dev. Returns a summary and only the packages with problems: malicious-package flags first, then vulnerabilities by severity with the minimum upgrade target. Use when the user pastes or attaches a lockfile, asks for a full or transitive dependency audit, or asks \"is my project vulnerable?\". Prefer this over check_dependencies when the user has the file itself.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "content": {
            "description": "The full text of the lockfile or dependency file, pasted as-is",
            "maxLength": 3000000,
            "minLength": 10,
            "type": "string"
          },
          "filename": {
            "description": "File name, e.g. package-lock.json, yarn.lock, Cargo.lock, go.sum, poetry.lock. Helps detect the format",
            "maxLength": 120,
            "type": "string"
          }
        },
        "required": [
          "content"
        ],
        "type": "object"
      },
      "name": "check_lockfile"
    },
    {
      "description": "Check one open-source package (npm, PyPI, Go, Maven, crates.io or NuGet) for safety and freshness. Returns a malicious-package flag (from OSV MAL- and malware advisories), known vulnerabilities with severity and the version that fixes each, the minimum version that clears all of them, the latest stable version, whether the given version is outdated or deprecated, licences, last release date, and the linked repository's OpenSSF Scorecard. If no version is given, the latest version is checked. Use when the user asks \"is <package> safe?\", \"is it malware?\", \"which version should I use?\", \"should I upgrade?\", or about a package's known CVEs, and before recommending any package or version to install (npm install, pip install, go get, cargo add, etc.). Data comes from OSV.dev and deps.dev; newly published malware may not be listed yet.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "ecosystem": {
            "description": "Package ecosystem: npm, PyPI, Go, Maven, crates.io or NuGet (aliases like pip, python, cargo, rust, golang, java, dotnet also work)",
            "maxLength": 20,
            "minLength": 2,
            "type": "string"
          },
          "name": {
            "description": "Package name, e.g. lodash, @types/node, requests, github.com/gin-gonic/gin, org.apache.logging.log4j:log4j-core, serde, Newtonsoft.Json",
            "maxLength": 214,
            "minLength": 1,
            "type": "string"
          },
          "version": {
            "description": "Optional exact version to check, e.g. 4.17.15. Omit to check the latest release",
            "maxLength": 80,
            "type": "string"
          }
        },
        "required": [
          "ecosystem",
          "name"
        ],
        "type": "object"
      },
      "name": "check_package"
    },
    {
      "description": "Look up one vulnerability or malicious-package advisory by ID (CVE, GHSA, PYSEC, GO, RUSTSEC, MAL and other OSV IDs) and return its summary, severity, CVSS vector, aliases, publish date, the affected packages with their affected and fixed version ranges, and key references. Use when the user mentions a specific advisory or CVE ID (\"what is CVE-2021-44228?\", \"am I affected by this GHSA?\") and wants to know what it is, what is affected or which version fixes it. Only covers advisories in OSV.dev.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "id": {
            "description": "Advisory ID, e.g. CVE-2021-44228, GHSA-29mw-wpgm-hmr9, PYSEC-2018-28, MAL-2025-20690",
            "maxLength": 80,
            "minLength": 5,
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_vulnerability"
    }
  ]
}

What the leaf hashes

{"body":"2f8263e4da9f61bcbe5daed85899c705099e998c6a34ca46ab38184680f8f612","id":295553,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793051015766475,"prev":null,"subject":"648beb03-4177-40ab-870a-ad84ce693d20","subject_kind":"endpoint"}

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. 0x0590806f98c4174d1c48e2fdd94d056edf63819f243d34b510d2c24937be0c26
2. 0xdc0558bdf8054a7fa7f5bb5d99d17de4d80d908617dafd8764bc90533f0973d3
3. 0x11071744ebdd3750518cf10aaa81dc22eb95995aa4a8fe721bc498b3c49601fc
4. 0xb4a655490a37738adb3e4b981c0e9488ef9ae5818b01625b7fe6780f003a0729
5. 0xdfc92df0a0e37c9d0ccfaa1fea089d49130a378240920234e8e125f27b71705c
6. 0x02bbe0996a1d376d1fad519280b8279bc098e65ad7dbbf684397acefdf3ca92d
7. 0x27c528fb8e7a48c8ad4adcaa973157fe7d3a63f283539da2d07dfbd545fab79a
8. 0xb3848dc3ee99873dec25f97a607d5d6e6bf425c320a45fd1cd3cabf2f9ac3a63
9. 0x722fbb07d5dbdec6b342192af17963d74b052eb7d6398822992a7843a87d580e
10. 0x29a79a1e444b726bf2db966f6ad9d0448d93ae7b7180fd783a410b336c52af9b
11. 0x88fb9d02ea6ed7254b70cfe02388b31c183a7a709aad6303948d66f85ad516b1
12. 0x7910a200eb458bec3c3badb3b2ead3e75cec5f3ba263800cea6b9f32efb53f25
13. 0x610fdf3e989af0a6b4a400a3a8aab9156d757f8c96efe4e9d0594dfd04de1cc0
14. 0xd1d3499072edb10edc68f84bcae2365d2ab534df689250cab18c751b6f13b6ff
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae