# AOTrust Evidence Bundle

> AOTrust Evidence Bundle is a paid API for AI agents from api.aotrust.link, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).

Retrieves a full evidence pack for a notarized artifact including PDR, anchor status, inclusion proof, and verification recipe

## Facts

- Endpoint: POST https://api.aotrust.link/v1/attestation/bundle?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aotrust-evidence-bundle-f26e6c2a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DvYvnH1tbDXI2f0enWWg8

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 aotrust-evidence-bundle-f26e6c2a -d '<json body>'
```

Example prompt: Can you pull the full evidence bundle for the notarized artifact with SHA-256 hash a3f1c8d9e2b047f6a1234567890abcdef1234567890abcdef1234567890abcdef — I need the PDR, anchor status, inclusion proof, and the verification recipe so I can independently confirm it was properly notarized?

## When to prefer this

Use this endpoint when you need a complete, portable evidence pack for a single notarized artifact and want everything in one call: PDR, anchor status, inclusion proof, and a self-contained verification recipe. Prefer this over calling individual attestation sub-endpoints when you need to hand off proof to a third party, run compliance audits, or independently verify an agent's notarized output without access to AOTrust infrastructure.

## Known failure modes

- work_hash not found — returns error if the hash has never been notarized or doesn't exist in the system
- Invalid hash format — 400 error if work_hash is not a valid 64-character lowercase hex SHA-256 string
- Anchor not yet confirmed — bundle may be returned but anchor status shows pending if notarization is still being processed
- Payment failure — 402 if the $0.02 USDC x402 payment is not included or invalid
- Timeout — if the underlying anchoring service is slow to respond

## How this service works

Evidence pack: PDR + anchor status + inclusion proof + verify recipe for one work_hash

## Output

A structured evidence pack containing: the Provenance Data Record (PDR) for the artifact, its current anchor status (whether it has been confirmed on-chain), a cryptographic inclusion proof, and a step-by-step verification recipe that allows anyone to independently confirm the artifact's authenticity and integrity.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "work_hash": {
   "type": "string",
   "pattern": "^[0-9a-f]{64}$",
   "description": "sha256 hex of the notarized artifact"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aotrust-evidence-bundle-f26e6c2a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.aotrust.link](https://www.zero.xyz/host/api.aotrust.link/llms.txt)