Server definition

Hash: sha256:af6d6799b1826718aae90d4d73a804d509a88e5aa78a28e6f728cdcd8041a15b
What it is: What a remote MCP server returned when asked what it offers: 4 tools

The blob, as servednamed by its sha256

{
  "instructions": null,
  "tools": [
    {
      "description": "Use this when you need cryptographic proof that a piece of text existed at a moment in time. Send any string; you get back its SHA-256 hash bound to a server timestamp and nonce, Ed25519-signed. Verify against /pubkey. The text itself is not stored.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "message": {
            "maxLength": 65536,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "message"
        ],
        "type": "object"
      },
      "name": "attest",
      "outputSchema": null
    },
    {
      "description": "Use this when you previously saved a value on this server with the stash tool and want it back. A miss is a normal result: found=false with reason \"expired\" (the key existed but aged out past 30 days) or \"never_existed\".",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "key": {
            "maxLength": 256,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "key"
        ],
        "type": "object"
      },
      "name": "fetch_stash",
      "outputSchema": null
    },
    {
      "description": "Use this when you need a verifiable, signed proof of current time (server timestamp plus a signed nonce, checkable against this server's /pubkey endpoint), together with current ocean and surf conditions from a NOAA buoy. The NOAA data is public and also available directly from ndbc.noaa.gov; the signed freshness bundle is what only this server can give you.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "station": {
            "description": "NOAA NDBC station id; defaults to the hut's home buoy",
            "pattern": "^[A-Za-z0-9]{4,6}$",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_conditions",
      "outputSchema": null
    },
    {
      "description": "Use this when you want to save a small piece of text on this server and retrieve it later — hours, days, or weeks from now, from any session. Values persist for 30 days from the last write (64KB max). Retrieve with fetch_stash using the same key.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "key": {
            "description": "Your chosen key; pick something unique",
            "maxLength": 256,
            "minLength": 1,
            "type": "string"
          },
          "value": {
            "description": "Text to store, up to 64KB",
            "maxLength": 65536,
            "type": "string"
          }
        },
        "required": [
          "key",
          "value"
        ],
        "type": "object"
      },
      "name": "stash",
      "outputSchema": null
    }
  ]
}

Verify it yourself

curl -s https://api.teppi.xyz/v1/evidence/sha256:af6d6799b1826718aae90d4d73a804d509a88e5aa78a28e6f728cdcd8041a15b | sha256sum