Proof that a hash was stamped: when we received it, the Merkle path from its leaf to th…
Proof that a hash was stamped: when we received it, the Merkle path from its leaf to the root, and the Base network transaction that recorded the root, with step-by-step instructions to check it yourself without trusting us.
by api.manylives.me · discovered, not yet claimed by its owner · updated 2026-10-09
Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.
What it does
Proof that a hash was stamped: when we received it, the Merkle path from its leaf to the root, and the Base network transaction that recorded the root, with step-by-step instructions to check it yourself without trusting us.
Tags: agents · webhooks · scheduler · timestamp · utilities · bazaar
Call contract
- Method
- GET
- Input
- query parameters
- Output
- json
- Last paid call
- 2026-10-09
{
"hash": "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08"
}{
"hash": "9f86…0a08",
"how_to_check": [
"…"
],
"stamps": [
{
"batch": "2026-10-09T12",
"block_time": "2026-10-09T13:05:12Z",
"leaf": "…",
"leaf_is": "sha256(hash + '|' + stamp_id)",
"proof": [
{
"sibling": "…",
"side": "right"
}
],
"received_at": "2026-10-09T12:00:00Z",
"root": "…",
"stamp_id": "stp_k3m8q2r7t9w4y6z2",
"status": "on_chain",
"tx": "0x…"
}
]
}Use with an agent
- Discover. Agents find this listing with
GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP toolsearch_resources, or/discovery/resources. - Inspect. Fetch
/resources/33707.jsonfor the price and payment options. - Pay. Call
GET https://api.manylives.me/paid/proof/verify. The provider answers402with its payment requirements. An x402 client signs one of the options below and retries withPAYMENT-SIGNATURE. - Execute. The provider returns
200with the data. Agent Bazaar is not in the request path and never sees your payment.
For humans
You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.
Pricing & payment
- Price
- $0.002 / request
- Protocol
- x402 v2
- Auth
- No account or API key. Pay per request.
- Networks
- Base
- Demand
- 2 calls · 2 unique payers in 30d (public x402 Bazaar data)
x402 payment requirements
| Scheme | Network | Asset | Amount | Pay to | Timeout |
|---|---|---|---|---|---|
| exact | Base eip155:8453 | USDC | $0.002 | 0xD161874249321F8AE3000C19DdD070e46682f1B3 | 120s |
accepts[] (raw JSON)
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0xD161874249321F8AE3000C19DdD070e46682f1B3",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "2000",
"amountUsd": 0.002,
"maxTimeoutSeconds": 120
}
]Schemas
Output schema (JSON Schema)
{
"properties": {
"example": {
"properties": {
"hash": {
"type": "string"
},
"how_to_check": {
"items": {},
"type": "array"
},
"stamps": {
"items": {
"properties": {
"batch": {
"type": "string"
},
"block_time": {
"type": "string"
},
"leaf": {
"type": "string"
},
"leaf_is": {
"type": "string"
},
"proof": {
"items": {
"properties": {
"sibling": {
"type": "string"
},
"side": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"received_at": {
"type": "string"
},
"root": {
"type": "string"
},
"stamp_id": {
"type": "string"
},
"status": {
"type": "string"
},
"tx": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
}
},
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}Example shape — generated from the schema, not a captured live response
{
"example": {
"hash": "string",
"how_to_check": [
"value"
],
"stamps": [
{
"batch": "string",
"block_time": "string",
"leaf": "string",
"leaf_is": "string",
"proof": [
{
"sibling": "string",
"side": "string"
}
],
"received_at": "string",
"root": "string",
"stamp_id": "string",
"status": "string",
"tx": "string"
}
]
},
"type": "string"
}Examples
curl "https://api.manylives.me/paid/proof/verify"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paidconst res = await fetch("https://api.manylives.me/paid/proof/verify");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}import httpx
res = httpx.get("https://api.manylives.me/paid/proof/verify")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerDetails
- Provider
- api.manylives.me
- Endpoint
- https://api.manylives.me/paid/proof/verify
- Machine-readable
/resources/33707.json