# Publication Proofing — Exact Row Deduplication + Two-Measure Correlation

> Publication Proofing — Exact Row Deduplication + Two-Measure Correlation is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-11-02).

Deduplicates exact rows and computes correlation between checked_pages and flagged_pages across up to 200 publication proofing records, returning two analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-writing-18-050?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/publication-proofing-exact-row-deduplication-two-measure-correlation-fe6cde30
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BlUhpTiKOn5UjeJ0-I-BS

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 publication-proofing-exact-row-deduplication-two-measure-correlation-fe6cde30 -d '<json body>'
```

Example prompt: I have a list of up to 200 publication proofing records with checked_pages and flagged_pages counts — can you deduplicate exact rows and compute the correlation between those two measures for me?

## When to prefer this

Choose this endpoint when you have up to 200 publication proofing records with checked_pages and flagged_pages metrics and need both exact-row deduplication and pairwise correlation computed in a single low-cost call ($0.01 USDC). It is ideal for lightweight, offline analytical passes on proofreading or document review datasets without needing live lookups, external enrichment, or persistent storage. Prefer alternatives if you need histogram binning, outlier detection, or more than two measures analyzed simultaneously.

## Known failure modes

- More than 200 rows submitted — request rejected or truncated
- Missing required fields (row_id, document_group, date, checked_pages, flagged_pages) — validation error
- Invalid date format not matching YYYY-MM-DD pattern — schema rejection
- All null values for checked_pages or flagged_pages — correlation computation may fail or return undefined
- Empty rows array — minimum 1 row required

## How this service works

Publication proofing — Exact row deduplication + Two-measure correlation: Exact row deduplication + Two-measure correlation for supplied publication proofing records (checked_pages, flagged_pages). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.

## Output

Two analytical reports: (1) a list of exact duplicate rows identified in the submitted proofing records, and (2) a two-measure correlation result quantifying the statistical relationship between checked_pages and flagged_pages across the submitted rows (up to 200 rows total).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "document_group",
     "date",
     "checked_pages",
     "flagged_pages"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "checked_pages": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "flagged_pages": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "document_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "checked_pages": 10,
     "flagged_pages": 1,
     "document_group": "group-a"
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "checked_pages": 20,
     "flagged_pages": 2,
     "document_group": "group-b"
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "checked_pages": 15,
     "flagged_pages": 3,
     "document_group": "group-a"
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "checked_pages": 30,
     "flagged_pages": 4,
     "document_group": "group-b"
    }
   ],
   "maxItems": 200,
   "minItems": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/publication-proofing-exact-row-deduplication-two-measure-correlation-fe6cde30/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)