# Solo Reward Poisson Standard Deviation — Weighted Result Mean

> Solo Reward Poisson Standard Deviation — Weighted Result Mean is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Computes a weighted mean of Poisson-distributed solo Bitcoin mining reward standard deviations across multiple mining scenarios

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-mining-reward-deviation-weighted-mean?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/solo-reward-poisson-standard-deviation-weighted-result-mean-aac0e0a6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kiOrZA7q-Z2kAgyKTmiou

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 solo-reward-poisson-standard-deviation-weighted-result-mean-aac0e0a6 -d '<json body>'
```

Example prompt: I have four solo mining scenarios — reward 3.125 BTC with 4 expected blocks (weight 1), reward 3.4375 BTC with 4.4 expected blocks (weight 2), reward 3.125 BTC with 4 expected blocks (weight 1), and reward 3.4375 BTC with 4.4 expected blocks (weight 2) — can you give me the weighted mean of the Poisson standard deviation across all of them?

## When to prefer this

Choose this endpoint when you need a single summary statistic aggregating Poisson reward deviation across multiple solo mining scenarios with differential importance weights. It is ideal when you have 2–200 distinct assumption sets and want a weighted average rather than per-row breakdown or a single-scenario calculation.

## Known failure modes

- Fewer than 2 rows provided — minimum 2 rows required
- Weights array length does not match rows array length
- expected_blocks or reward_btc set to zero or negative — exclusiveMinimum:0 applies
- More than 200 rows submitted — maxItems limit exceeded
- Non-numeric values in rows or weights arrays

## How this service works

Solo reward Poisson standard deviation — Weighted result mean: Weighted result mean for Solo reward Poisson standard deviation. 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 weighted result mean report.

## Output

Returns a single weighted mean value representing the average Poisson standard deviation of solo Bitcoin mining rewards across the supplied rows, computed using the provided weights. The report includes the formula and units used, but no live prices or guaranteed return figures.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "expected_blocks",
     "reward_btc"
    ],
    "properties": {
     "reward_btc": {
      "type": "number",
      "default": 3.125,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     },
     "expected_blocks": {
      "type": "number",
      "default": 4,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "reward_btc": 3.125,
     "expected_blocks": 4
    },
    {
     "reward_btc": 3.4375000000000004,
     "expected_blocks": 4.4
    },
    {
     "reward_btc": 3.125,
     "expected_blocks": 4
    },
    {
     "reward_btc": 3.4375000000000004,
     "expected_blocks": 4.4
    }
   ],
   "maxItems": 200,
   "minItems": 2
  },
  "weights": {
   "type": "array",
   "items": {
    "type": "number",
    "default": 1,
    "maximum": 1000000000000,
    "minimum": 0
   },
   "default": [
    1,
    2,
    1,
    2
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/solo-reward-poisson-standard-deviation-weighted-result-mean-aac0e0a6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
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