Server definition

Hash: sha256:818294a3944d046da4b082934bc14cab5cd3142fb71fad57be9e122e079ada71
What it is: What a remote MCP server returned when asked what it offers: 6 tools

The blob, as servednamed by its sha256

{
  "instructions": null,
  "tools": [
    {
      "description": "Wrap any payload in a tamper-evident record: a UUID, a timestamp (NTP-verified when reachable, local clock otherwise -- the record says which), and a sha256 over the canonical record. One call, the record is complete and tamper-evident.",
      "inputSchema": {
        "properties": {
          "payload": {
            "description": "Any JSON value to attest"
          },
          "server": {
            "default": "time.cloudflare.com",
            "description": "NTP server for the verified timestamp",
            "type": "string"
          }
        },
        "required": [
          "payload"
        ],
        "type": "object"
      },
      "name": "attest",
      "outputSchema": null
    },
    {
      "description": "Evaluate a math expression safely: + - * / // % **, parentheses, functions (abs round min max sqrt floor ceil exp log log2 log10 pow sin cos tan), constants pi e tau inf. Parsed to an AST and only whitelisted nodes are computed -- no eval(), no names, no arbitrary code.",
      "inputSchema": {
        "properties": {
          "expression": {
            "description": "e.g. \"(1500 * 0.23) + 47\"",
            "type": "string"
          }
        },
        "required": [
          "expression"
        ],
        "type": "object"
      },
      "name": "calculate",
      "outputSchema": null
    },
    {
      "description": "Unified diff between two texts, with added/removed line counts. For reviewing edits, comparing outputs, or validating transformations.",
      "inputSchema": {
        "properties": {
          "context": {
            "default": 3,
            "description": "Lines of context around each change",
            "minimum": 0,
            "type": "integer"
          },
          "text_a": {
            "description": "Original text",
            "type": "string"
          },
          "text_b": {
            "description": "Revised text",
            "type": "string"
          }
        },
        "required": [
          "text_a",
          "text_b"
        ],
        "type": "object"
      },
      "name": "diff",
      "outputSchema": null
    },
    {
      "description": "Generate one or more random UUIDv4 identifiers -- for records, sessions, and IDs created in agent pipelines.",
      "inputSchema": {
        "properties": {
          "count": {
            "default": 1,
            "description": "How many UUIDs to generate",
            "maximum": 1000,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "generate_uuid",
      "outputSchema": null
    },
    {
      "description": "Query an NTP server for current UTC time and this clock's offset. Appends the sample to the drift log and returns the trend inline: current offset, drift rate (ms/day), and whether the clock is stable, drifting, or accelerating.",
      "inputSchema": {
        "properties": {
          "server": {
            "default": "time.cloudflare.com",
            "description": "NTP server to query",
            "type": "string"
          },
          "timezone": {
            "description": "IANA timezone for a 'local' field, e.g. America/New_York. Optional -- the HTTP transport also takes ?tz= in the URL.",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_time",
      "outputSchema": null
    },
    {
      "description": "Check a record produced by attest: recompute the sha256 over the record and compare. Pass/fail -- did this payload produce this hash at this timestamp. Any modified field breaks it.",
      "inputSchema": {
        "properties": {
          "attested": {
            "description": "The record returned by attest",
            "type": "object"
          }
        },
        "required": [
          "attested"
        ],
        "type": "object"
      },
      "name": "verify",
      "outputSchema": null
    }
  ]
}

Verify it yourself

curl -s https://api.teppi.xyz/v1/evidence/sha256:818294a3944d046da4b082934bc14cab5cd3142fb71fad57be9e122e079ada71 | sha256sum