# Provably-Fair Round Seed Reveal

> Provably-Fair Round Seed Reveal is a paid API for AI agents from pyfile-agent.taile3ff35.ts.net, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).

Reveals the server seed for a specified lottery/draw round so anyone can independently verify the fairness of past random selections.

## Facts

- Endpoint: GET https://pyfile-agent.taile3ff35.ts.net/data/fair/reveal
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/provably-fair-round-seed-reveal-6f47b0b0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CBML6NHpXrsTzz7ApW4oB

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability provably-fair-round-seed-reveal-6f47b0b0
```

Example prompt: Can you reveal the server seed for round 7 so I can verify the draw was fair?

## When to prefer this

Use this endpoint when you need to cryptographically audit or verify the outcome of a past random draw or lottery round conducted by this service. It is specifically designed for post-round transparency and pairs naturally with the provably-fair winner selection endpoint on the same host.

## Known failure modes

- Round ID not found or does not exist — returns 404 or error message
- Round seed not yet revealed because the round is still in progress
- Missing required 'round' query parameter — returns 400 or validation error
- Server unavailable or payment failure via x402 protocol

## How this service works

Reveal the server_seed for a round so anyone can verify past draws. ?round=<id>

## Output

Returns the server seed (a cryptographic value) associated with the specified round ID, enabling anyone to reproduce the random selection algorithm and confirm the draw outcome was not tampered with.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   }
  },
  "output": {
   "type": "object"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/provably-fair-round-seed-reveal-6f47b0b0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pyfile-agent.taile3ff35.ts.net](https://www.zero.xyz/host/pyfile-agent.taile3ff35.ts.net/llms.txt)