# Mahastrategies Transparency Hash Chain Verification

> Mahastrategies Transparency Hash Chain Verification is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.0385/call, status unknown (last checked 2026-10-20).

Verifies a bounded civic-ledger public organizational decision hash chain against declared checkpoints, detecting expected-head truncation without Merkle proof or anchor.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/micro/transparency-hash-chain-verification?utm_source=zero.xyz
- Price: $0.0385/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mahastrategies-transparency-hash-chain-verification-67d47acc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6rvLCFgV2ufzg91CZF7--

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 mahastrategies-transparency-hash-chain-verification-67d47acc -d '<json body>'
```

Example prompt: Can you verify this public civic-ledger hash chain — the data class is 'public', public non-personal records is true, and I have the preceding chain object, the expectedHead object, and up to 12 receipts — and tell me if the chain is intact or if there's a truncation at the expected head?

## When to prefer this

Use this endpoint when you need lightweight, no-Merkle-proof hash chain verification for bounded civic or public organizational decision ledgers, specifically when you want to detect expected-head truncation against declared checkpoints. Prefer it over full Merkle-proof systems when simplicity and cost efficiency matter and the data is confirmed public/non-personal.

## Known failure modes

- Invalid or malformed preceding chain object causes verification failure
- expectedHead object mismatch triggers truncation detection flag
- receipts array exceeds 32 items returns schema validation error
- dataClass not set to 'public' or 'synthetic' returns enum validation error
- publicNonpersonalRecords not set to true returns rejection
- Missing required body fields returns 400-level error

## How this service works

Verify a bounded civic-ledger-1 public organizational decision suffix against declared checkpoints, including expected-head truncation detection. No Merkle proof or anchor.

## Output

Returns a structured result object with verification outcome, a boundaries array (up to 128 entries) indicating checkpoint states, an inputDigest and receiptDigest (hash strings up to 71 chars), the offerId 'transparency-hash-chain-verification', version string, and the charge amount in base units (38500).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "dataClass",
      "publicNonpersonalRecords",
      "preceding",
      "expectedHead",
      "receipts"
     ],
     "properties": {
      "receipts": {
       "type": "array",
       "maxItems": 32,
       "minItems": 0
      },
      "dataClass": {
       "enum": [
        "public",
        "synthetic"
       ],
       "type": "string"
      },
      "preceding": {
       "type": "object"
      },
      "expectedHead": {
       "type": "object"
      },
      "publicNonpersonalRecords": {
       "enum": [
        true
       ],
       "type": "boolean"
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "version",
      "offerId",
      "amountBaseUnits",
      "inputDigest",
      "result",
      "boundaries",
      "receiptDigest"
     ],
     "properties": {
      "result": {
       "type": "object"
      },
      "offerId": {
       "enum": [
        "transparency-hash-chain-verification"
       ],
       "type": "string"
      },
      "version": {
       "enum": [
        "maha-microproducts/0.1"
       ],
       "type": "string"
      },
      "boundaries": {
       "type": "array",
       "maxItems": 128,
       "minItems": 0
      },
      "inputDigest": {
       "type": "string",
       "maxLength": 71
      },
      "receiptDigest": {
       "type": "string",
       "maxLength": 71
      },
      "amountBaseUnits": {
       "enum": [
        "38500"
       ],
       "type": "string"
      }
     },
     "additionalProperties": false
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mahastrategies-transparency-hash-chain-verification-67d47acc/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)