# Quantum Calibrations - Revision Delta Map

> Quantum Calibrations - Revision Delta Map is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.021311/call, status unknown (last checked 2026-10-16).

Compares two sets of quantum calibration record revisions and enumerates changes in owner, subject, revision, content, and scope pin fields by stable record ID.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/compute/quantum-calibrations/revision-delta-map?utm_source=zero.xyz
- Price: $0.021311/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quantum-calibrations-revision-delta-map-dfea32bd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8G8OZ-3O0ZFi2whDnJXMD

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 quantum-calibrations-revision-delta-map-dfea32bd -d '<json body>'
```

Example prompt: Compare my two sets of quantum calibration revision records — here are the 'before' records and 'after' records (up to 32 each), both classified as synthetic and non-personal — and tell me exactly which record IDs changed and which fields (owner, subject, revision, content, scope pin) were different.

## When to prefer this

Use this endpoint when you need to compare two discrete snapshots of quantum calibration records and enumerate field-level differences by stable record ID. It is purpose-built for structured diff of calibration declaration metadata (owner, subject, revision, content, scope pin) and is not a general-purpose diff tool. Prefer it over generic comparison utilities when the data is quantum calibration formatted and must conform to the public/synthetic, non-personal constraint.

## Known failure modes

- Input exceeds 32 KiB limit — request rejected
- dataClass not set to 'public' or 'synthetic' — validation error
- nonpersonalMetadata not set to true — request rejected
- before or after arrays exceed 32 items — schema validation failure
- Malformed revision record structure — parse error
- Payment not provided or insufficient USDC — 402 response

## How this service works

Enumerate owner, subject, revision, content and scope pin changes by stable record ID in two supplied revisions for bounded backend/run/register/measurement-pin records. Caller-supplied public/synthetic nonpersonal calibration declarations only. No hardware measurement, device/API access, recalibration, mitigation, performance guarantee or scientific certification. Input limit: 32 KiB. Result retention: 24 hours; minimal receipt metadata: 90 days.

## Output

A map of stable record IDs to their detected field-level changes across the before and after revision arrays, covering owner, subject, revision, content, and scope pin fields. Results are retained for 24 hours; minimal receipt metadata is retained for 90 days. Input limit is 32 KiB.

## 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/quantum-calibrations-revision-delta-map-dfea32bd/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)