# Archive NATS: jobs, multipart split, hash receipts, WORM bloom fan-out

Zapier never speaks NATS. HTTPS stops at zappier → middleware. Middleware owns jobs, splitting, chain lookup, and archive aggregation.

## End-to-end

```text
Zapier  --HTTPS-->  zappier (meter, x-api-key)
                 --HTTPS-->  middleware /zapier/v1/timestamp[/wait]
                              1. split multipart
                                 chain: SHA256 only (+ optional public-meta digest)
                                 archives: public JSON, encrypted private JSON, files
                              2. publish jobs.watch → return jobId (202)
                              3. waiters subscribe jobs.events
                              4. lookup SHA256 on chain (mock or Verae)
                                 already sealed → original receipt, no new seal
                                 later attach records → extra receipts
                              5. if includeAttached:
                                 publish verae.archive.query
                                 WORM nodes: bloom miss = silence
                                 bloom hit = reply
                                 aggregate until WAIT_ARCHIVE_MS
                              6. jobs.events completed JSON → waiter / REST Hook
```

Blockchain stores **hash + time + block + certificate**. Public metadata, encrypted metadata, and file bytes live on **WORM archives**.

## Splitter

`splitRequest(body | multipart)`:

| Field | Destination |
|-------|-------------|
| `data` / `sha256` | Chain register or lookup |
| `publicMetadata` | Archive put (clear) |
| `privateMetadata` | Archive put (ciphertext) |
| `files[]` | Archive put; chain gets content hashes + ids |
| `includeAttached` | Whether wait path queries archives |

## Hash already registered

Return original `jobId` and original seal. Do not write a second chain timestamp.

If later attach jobs exist for that hash, `receipts` is an array: seal first, then attachment receipts in time order.

## Subjects

| Subject | Publisher | Subscriber |
|---------|-----------|------------|
| `verae.zapier.jobs.watch` | HTTP edge | job poller |
| `verae.zapier.jobs.events` | poller | waiter, webhook router |
| `verae.archive.put` | splitter | archive that owns the shard |
| `verae.archive.query` | aggregator | **every** archive (not a shared queue group) |
| `verae.archive.reply.<correlationId>` | archive on bloom hit | aggregator |

Query payload: `{ correlationId, sha256, tenantId, kinds[] }`.  
`kinds` may include `tree` for Merkle leaf proofs (hashes sealed only as a bulk summary root).  
Reply payload: `{ archiveId, sha256, records[] }`.

Bloom miss → no reply. Aggregator timeout → complete with whatever arrived.

## WORM archives

Each process holds append-only records + a bloom of SHA256 keys it stores. False positives OK; false negatives must be rare. Bloom is not an ACL — on hit, still check tenant/share.

Harness: three mock archives with overlapping hashes.

## Completed job JSON (wait / hook)

```json
{
  "jobId": "…",
  "status": "completed",
  "sha256": "…",
  "receipts": [
    { "kind": "seal", "timestamp": "…", "certificate": "…", "blockIndex": 42 },
    { "kind": "metadata-attach", "attachedAt": "…", "publicMetadata": {} }
  ],
  "files": [{ "id": "…", "sha256": "…", "archiveId": "archive-b" }],
  "archivesQueried": true,
  "archiveReplies": 2
}
```

Flag off or all blooms miss → `files` empty, extra receipts omitted.

## Security

- Zapier never connects to NATS or archives.
- Private metadata only on authenticated archive replies.
- NS1 NATS stays loopback; use `scripts/nats-tunnel.sh`.