# Mining Difficulty Relative Change — Benchmark Correlation

> Mining Difficulty Relative Change — Benchmark Correlation is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Computes the Pearson (or similar) correlation between a series of mining difficulty relative changes and a set of user-supplied benchmark values, returning a bounded correlation report.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-mining-difficulty-change-correlation?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mining-difficulty-relative-change-benchmark-correlation-a2c9c3fb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MKynofII8RpXhL5t25mqg

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 mining-difficulty-relative-change-benchmark-correlation-a2c9c3fb -d '<json body>'
```

Example prompt: Compute the benchmark correlation for these mining difficulty changes — old difficulties were 100, 110, 100, 110 and new difficulties were 110, 121, 110, 121 — and compare them against benchmarks of 10, 20, 30, and 40.

## When to prefer this

Choose this endpoint when you need a quick, low-cost ($0.01 USDC) statistical correlation between a series of mining difficulty relative changes and a set of reference benchmark values. It is ideal for cryptocurrency mining analysis workflows where you want to measure how closely difficulty adjustments track pre-defined growth targets or thresholds, without needing live price feeds or profit projections.

## Known failure modes

- Fewer than 2 rows or benchmarks provided — returns validation error
- new_difficulty or old_difficulty set to zero or negative — rejected by schema (exclusiveMinimum: 0)
- Mismatched array lengths between rows and benchmarks may produce unexpected correlation results
- Values exceeding maximum bounds (10^16 for difficulties) rejected
- Missing required fields new_difficulty or old_difficulty per row returns schema error
- Non-numeric values in rows or benchmarks cause request failure

## How this service works

Mining difficulty relative change — Benchmark correlation: Benchmark correlation for Mining difficulty relative change. Supplied mining assumptions only; formula and units disclosed. No live prices, mining or guaranteed return. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one bounded benchmark correlation report.

## Output

A bounded benchmark correlation report containing correlation coefficients between the computed mining difficulty relative changes (derived from each new_difficulty/old_difficulty pair) and the supplied benchmark series, along with the formula and units used. No live prices or guaranteed returns are included.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "new_difficulty",
     "old_difficulty"
    ],
    "properties": {
     "new_difficulty": {
      "type": "number",
      "default": 110,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     },
     "old_difficulty": {
      "type": "number",
      "default": 100,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "new_difficulty": 110,
     "old_difficulty": 100
    },
    {
     "new_difficulty": 121.00000000000001,
     "old_difficulty": 110.00000000000001
    },
    {
     "new_difficulty": 110,
     "old_difficulty": 100
    },
    {
     "new_difficulty": 121.00000000000001,
     "old_difficulty": 110.00000000000001
    }
   ],
   "maxItems": 200,
   "minItems": 2
  },
  "benchmarks": {
   "type": "array",
   "items": {
    "type": "number",
    "default": 1,
    "maximum": 1000000000000000000,
    "minimum": -1000000000000000000
   },
   "default": [
    10,
    20,
    30,
    40
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mining-difficulty-relative-change-benchmark-correlation-a2c9c3fb/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)