Ephemeris Snapshots Unit Label Consistency

{
  "data": {
    "chargedAmount": "12329",
    "inputHash": "sha256:cce97b43b7c0f0b8cc16c0e91669ec27de398de074d932b19df5b389d…",
    "limitations": [
      "Public or synthetic nonpersonal metadata only; these are caller …"
    ],
    "productId": "ephemeris-snapshots-unit-label-consistency",
    "result": {
      "authoritativeSourcesConsulted": false,
      "domainValidationEstablished": false,
      "findings": [],
      "method": "ephemeris-snapshots-unit-label-consistency/1",
      "metrics": [
        {
          "key": "ephemeris-snapshots-compatible-unit-records",
          "recordId": "ephemeris-snapshots",
          "value": "1"
        }
      ]
    },
    "resultHash": "sha256:015daf54f5cd4187a25fa0eaa6888ed020ab0caad5e203bcf96f1301d…",
    "version": "maha-typed-metadata-audit/1"
  },
  "proof": {
    "settlement_id": "0x00000000000000000000000000000000000000000000000000000000000000…"
  },
  "success": true
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://www.mahastrategies.com/api/v1/celestial/ephemeris-snapshots/unit-label-consistency' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","measurements":[{"centreRef":"declared-centre1","coordinateFrameRef":"declared-frame1","correctionRef":"declared-geometric","datasetRef":"ephemeris1","epochOriginRef":"declared-origin1","id":"m1","kernelDigest":"sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","quantity":"distance","snapshotRevision":"sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","targetRef":"synthetic-target1","tickUnitRef":"declared-seconds","timeScaleRef":"declared-scale1","unit":"kilometres","value":1}],"nonpersonalMetadata":true}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://www.mahastrategies.com/api/v1/celestial/ephemeris-snapshots/unit-label-consistency' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","measurements":[{"centreRef":"declared-centre1","coordinateFrameRef":"declared-frame1","correctionRef":"declared-geometric","datasetRef":"ephemeris1","epochOriginRef":"declared-origin1","id":"m1","kernelDigest":"sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","quantity":"distance","snapshotRevision":"sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","targetRef":"synthetic-target1","tickUnitRef":"declared-seconds","timeScaleRef":"declared-scale1","unit":"kilometres","value":1}],"nonpersonalMetadata":true}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.012329 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.012329" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.012329 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fcelestial%2Fephemeris-snapshots%2Funit-label-consistency&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/celestial/ephemeris-snapshots/unit-label-consistency", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "dataClass": "synthetic",
    "measurements": [
      {
        "centreRef": "declared-centre1",
        "coordinateFrameRef": "declared-frame1",
        "correctionRef": "declared-geometric",
        "datasetRef": "ephemeris1",
        "epochOriginRef": "declared-origin1",
        "id": "m1",
        "kernelDigest": "sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
        "quantity": "distance",
        "snapshotRevision": "sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
        "targetRef": "synthetic-target1",
        "tickUnitRef": "declared-seconds",
        "timeScaleRef": "declared-scale1",
        "unit": "kilometres",
        "value": 1
      }
    ],
    "nonpersonalMetadata": true
  }),
});
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.012329 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.012329"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://www.mahastrategies.com/api/v1/celestial/ephemeris-snapshots/unit-label-consistency",
        json={
            "dataClass": "synthetic",
            "measurements": [
                {
                    "centreRef": "declared-centre1",
                    "coordinateFrameRef": "declared-frame1",
                    "correctionRef": "declared-geometric",
                    "datasetRef": "ephemeris1",
                    "epochOriginRef": "declared-origin1",
                    "id": "m1",
                    "kernelDigest": "sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
                    "quantity": "distance",
                    "snapshotRevision": "sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
                    "targetRef": "synthetic-target1",
                    "tickUnitRef": "declared-seconds",
                    "timeScaleRef": "declared-scale1",
                    "unit": "kilometres",
                    "value": 1,
                },
            ],
            "nonpersonalMetadata": True,
        },
    )
    print(res.status_code, res.text)