15秒。5つのアルゴリズム。2014年から止まらず稼働中。

// Send 100 DGB via Core RPC (Node.js, no external deps)
import http from 'node:http';
const body = JSON.stringify({ jsonrpc: '1.0', id: 'web', method: 'sendtoaddress',
  params: ['DXXXXXXXXXXXXXXXXXXXXXXXXXXXX', 100] });

const req = http.request({
  hostname: '127.0.0.1', port: 14022, method: 'POST',
  auth: 'rpcuser:rpcpass',
  headers: { 'Content-Type': 'application/json', 'Content-Length': body.length }
}, res => {
  let d = ''; res.on('data', c => d += c);
  res.on('end', () => console.log(JSON.parse(d)));
});
req.write(body); req.end();

# Listen for new blocks (Python, requests)
import requests, time

URL = "http://rpcuser:rpcpass@127.0.0.1:14022"
last = 0
while True:
    info = requests.post(URL, json={
        "jsonrpc": "1.0", "id": "py", "method": "getblockchaininfo", "params": []
    }).json()["result"]
    if info["blocks"] != last:
        print("new block:", info["blocks"])
        last = info["blocks"]
    time.sleep(5)

curl -u rpcuser:rpcpass --data-binary \
  '{"jsonrpc":"1.0","id":"sh","method":"getmempoolinfo","params":[]}' \
  -H 'content-type: application/json;' http://127.0.0.1:14022/