Verify one Ed25519 signature over up to 8,000 characters of exact UTF-8 receipt
Verify one Ed25519 signature over up to 8,000 characters of exact UTF-8 receipt text using a supplied 32-byte public key. Returns cryptographic validity and message hash. Does not establish issuer identity, trusted time, licensing or the truth of the receipt. No private keys accepted. New modular adapter: retained result recovery for 24 hours, minimal receipt metadata for 90 days. Existing live route unchanged.
Answers HTTP 429 without x402 payment termsour last check, 2026-10-18
0 of 1checks answered this week
n/amedian answer time
$0.012501listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://www.mahastrategies.com/api/v1/verify/receipts/signature
| Category | Everything else |
|---|---|
| Provider host | www.mahastrategies.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | no x402 terms | 429 | 10 ms |
Example input (from the provider)
{
"body": {
"dataClass": "synthetic",
"encoding": "exact-utf8",
"message": "Synthetic receipt; no transaction asserted.",
"publicKeyBase64": "AQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQE=",
"signatureBase64": "AgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg=="
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"dataClass": {
"enum": [
"public",
"synthetic"
],
"type": "string"
},
"encoding": {
"enum": [
"exact-utf8"
],
"type": "string"
},
"message": {
"maxLength": 8000,
"minLength": 1,
"type": "string"
},
"publicKeyBase64": {
"maxLength": 44,
"type": "string"
},
"signatureBase64": {
"maxLength": 88,
"type": "string"
}
},
"required": [
"dataClass",
"encoding",
"message",
"publicKeyBase64",
"signatureBase64"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"data": {
"type": "object"
},
"proof": {
"type": "object"
},
"success": {
"const": true
}
},
"required": [
"success",
"data",
"proof"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}