# Source Attribution — Adjacent Row Changes + Keyed Dataset Comparison

> Source Attribution — Adjacent Row Changes + Keyed Dataset Comparison is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Runs two analytical reports on source attribution data: adjacent row-over-row change detection and keyed dataset comparison, across cited_sources and verified_links fields for up to 200 rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-news-02-161?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/source-attribution-adjacent-row-changes-keyed-dataset-comparison-3c7d9548
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JuAC1oaYvYxFlpRg8ro1F

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 source-attribution-adjacent-row-changes-keyed-dataset-comparison-3c7d9548 -d '<json body>'
```

Example prompt: Can you run adjacent row change detection and a keyed dataset comparison on my source attribution records? I have two datasets — each with up to 50 rows covering channel groups like 'news-feed' and 'social', with cited_sources and verified_links counts — and I want to analyze the cited_sources field specifically.

## When to prefer this

Choose this endpoint when you need both row-over-row trend analysis and a side-by-side keyed comparison of two source attribution datasets in a single call, without requiring live lookups or external data enrichment. Ideal for auditing news or media attribution pipelines where cited_sources and verified_links are the key metrics and datasets are already prepared locally.

## Known failure modes

- Missing required fields (row_id, channel_group, date, cited_sources, verified_links) causes validation error
- Exceeding 200 rows returns an error or truncation
- Invalid date format (not YYYY-MM-DD) causes schema rejection
- Null values in numeric fields may produce null deltas in output
- Mismatched row_ids between primary and comparison datasets may result in unmatched keys in comparison report
- Payment of 0.01 USDC required per call; insufficient funds will block execution

## How this service works

Source attribution — Adjacent row changes + Keyed dataset comparison: Adjacent row changes + Keyed dataset comparison for supplied source attribution records (cited_sources, verified_links). 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) an adjacent row changes report showing row-over-row deltas in the selected field (cited_sources or verified_links), and (2) a keyed dataset comparison report highlighting differences between the primary and comparison datasets matched by row_id, covering up to 200 rows per call.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/source-attribution-adjacent-row-changes-keyed-dataset-comparison-3c7d9548/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)