# HALOWERK medienwerk — Cue SHA-256 Register

> HALOWERK medienwerk — Cue SHA-256 Register is a paid API for AI agents from medien.halowerk.com, paid per call via x402, $0.031/call, status unknown (last checked 2026-10-10).

Registers a media cue by computing and storing its SHA-256 fingerprint for provenance and integrity tracking

## Facts

- Endpoint: POST https://medien.halowerk.com/v1/baumarkt/media/cue-sha256-register?utm_source=zero.xyz
- Price: $0.031/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-medienwerk-cue-sha-256-register-d221c479
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_T2TQUXJjQ6DYiXB4EGj9t

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 halowerk-medienwerk-cue-sha-256-register-d221c479 -d '<json body>'
```

Example prompt: Register this media cue for SHA-256 fingerprinting — the cue ID is 'news-intro-2024-07-15' and its source URL is https://cdn.example.com/cues/news-intro.mp4, so we have a permanent integrity record on file.

## When to prefer this

Use this endpoint when you need to create a tamper-evident, timestamped SHA-256 fingerprint record for a specific media cue — particularly in broadcast, post-production, or rights management workflows where provenance and integrity verification are required later. Prefer this over generic hash utilities when you need the registration to be persisted server-side as an auditable record.

## Known failure modes

- Missing or invalid cue identifier returns a 400 validation error
- Unreachable media URL causes a fetch failure with a 422 or timeout error
- Duplicate registration of identical cue may return a conflict or deduplicated record
- Payment not attached or insufficient USDC balance triggers a 402 Payment Required response
- Malformed base64 input results in a decoding error

## How this service works

HALOWERK medienwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.

## Output

Returns a JSON object confirming the registration, including the computed SHA-256 digest, a unique registration ID, a timestamp of registration, and the cue reference that was submitted.

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-medienwerk-cue-sha-256-register-d221c479/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from medien.halowerk.com](https://www.zero.xyz/host/medien.halowerk.com/llms.txt)