# Losbeto Trust Hash - SHA-256 Cryptographic Proof

> Losbeto Trust Hash - SHA-256 Cryptographic Proof is a paid API for AI agents from losbeto-production-dd7c.up.railway.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Returns a SHA-256 cryptographic hash serving as a verifiable proof-of-data receipt for audit trails of any Losbeto API response

## Facts

- Endpoint: GET https://losbeto-production-dd7c.up.railway.app/trust-hash
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/losbeto-trust-hash-sha-256-cryptographic-proof-d1150448
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_B0Szpau8cjF3DXY2XYSvl

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 losbeto-trust-hash-sha-256-cryptographic-proof-d1150448
```

Example prompt: Give me a SHA-256 trust hash from Losbeto as a cryptographic receipt I can use for my audit trail — return it in JSON format.

## When to prefer this

Use this endpoint when you need a tamper-evident, verifiable audit trail receipt for any Losbeto API response — particularly in compliance workflows, on-chain verification scenarios, or when downstream consumers need to independently verify the integrity of crypto data (SOL price, Fear & Greed Index) returned by Losbeto.

## Known failure modes

- Invalid format parameter returns error
- Service unavailable on Railway infrastructure leading to 5xx
- Payment not processed (x402 payment required error)
- Malformed response if JSON format not specified correctly

## How this service works

Prova hash verificável para conteúdo/manifest/endpoint

## Output

A JSON object containing a SHA-256 hash that acts as a cryptographic proof-of-data receipt, usable for verifying the integrity and authenticity of Losbeto API responses in audit trails.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "queryParams": {
     "type": "object",
     "properties": {
      "format": {
       "type": "string",
       "description": "Response format (json)"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "description": "SHA-256 proof-of-data hash for audit trails: a verifiable cryptographic receipt of any Losbeto response, for agents that must prove what they were told and when."
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/losbeto-trust-hash-sha-256-cryptographic-proof-d1150448/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from losbeto-production-dd7c.up.railway.app](https://www.zero.xyz/host/losbeto-production-dd7c.up.railway.app/llms.txt)