# Scientific Dataset Records - Revision Delta Map

> Scientific Dataset Records - Revision Delta Map is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.021338/call, status unknown (last checked 2026-10-16).

Compares two revisions of a scientific dataset record and returns a structured delta covering owner, subject, revision, content, and scope pin changes by stable record ID.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/intel/scientific-dataset-records/revision-delta-map?utm_source=zero.xyz
- Price: $0.021338/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scientific-dataset-records-revision-delta-map-8196c85c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_P3vQzxHaB1B3q4K0OtUQo

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 scientific-dataset-records-revision-delta-map-8196c85c -d '<json body>'
```

Example prompt: Compare two revisions of a public scientific dataset record for me — here are up to 32 record IDs for the 'before' snapshot and up to 32 for the 'after' snapshot, using only non-personal metadata, and tell me what changed in terms of owner, subject, content pins, and scope pins between the two revisions.

## When to prefer this

Choose this endpoint when you need a precise, revision-pinned diff of scientific dataset record metadata — specifically owner, subject, content, and scope pin changes — between two known snapshots. It is ideal for compliance audits, data governance workflows, or automated change detection pipelines where you already have stable record IDs for both revisions. It does not perform independent certification, so use it when you trust the supplied manifests and need structured delta output rather than third-party validation.

## Known failure modes

- Array size exceeds 32 items — request rejected
- dataClass not one of 'public' or 'synthetic' — validation error
- nonpersonalMetadata not set to true — request rejected
- Record IDs not found or not resolvable — empty or partial delta returned
- Malformed record ID format — parsing error
- Payment not supplied or insufficient — 402 payment required

## How this service works

Enumerate owner, subject, revision, content and scope pin changes by stable record ID in two supplied revisions for repository/dataset/schema/method/revision-pinned manifest Supplied-record analysis, not independent certification. Full contract at the free describe URL.

## Output

A structured delta map keyed by stable record ID, listing changes in owner, subject, revision pin, content pin, and scope pin fields between the two supplied revision snapshots. No independent certification is performed; the analysis is scoped to the supplied records and their declared manifests.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "after": {
   "type": "array",
   "maxItems": 32,
   "minItems": 0
  },
  "before": {
   "type": "array",
   "maxItems": 32,
   "minItems": 0
  },
  "dataClass": {
   "enum": [
    "public",
    "synthetic"
   ],
   "type": "string"
  },
  "nonpersonalMetadata": {
   "type": "boolean",
   "const": true
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scientific-dataset-records-revision-delta-map-8196c85c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.mahastrategies.com](https://www.zero.xyz/host/www.mahastrategies.com/llms.txt)