Paga centinaia di portafogli in un'unica operazione.

# signature = HMAC-SHA256(api_secret, timestamp + "." + raw_body)
BODY='{"currency":"USDT_TRON","items":[
  {"address":"TR7…","amount":"250.00"},
  {"address":"TX9…","amount":"99.50","tag":"batch-A"}]}'
TS=$(date +%s)
SIG=$(printf '%s.%s' "$TS" "$BODY" | openssl dgst -sha256 -hmac "$SECRET" | cut -d' ' -f2)

curl -X POST https://api.payora.money/v1/payout \
  -H "X-Payora-Key: $KEY" -H "X-Payora-Timestamp: $TS" \
  -H "X-Payora-Signature: $SIG" -H 'Idempotency-Key: payroll-2026-09' \
  -H 'Content-Type: application/json' -d "$BODY"

<?php
$body = json_encode([
  'currency' => 'USDT_TRON',
  'items'    => [
    ['address' => 'TR7…', 'amount' => '250.00'],
    ['address' => 'TX9…', 'amount' => '99.50', 'tag' => 'batch-A'],
  ],
]);
$ts  = (string) time();
$sig = hash_hmac('sha256', $ts . '.' . $body, $apiSecret);

$ch = curl_init('https://api.payora.money/v1/payout');
curl_setopt_array($ch, [
  CURLOPT_POST => true, CURLOPT_POSTFIELDS => $body, CURLOPT_RETURNTRANSFER => true,
  CURLOPT_HTTPHEADER => [
    'X-Payora-Key: ' . $apiKey, 'X-Payora-Timestamp: ' . $ts,
    'X-Payora-Signature: ' . $sig, 'Idempotency-Key: payroll-2026-09',
    'Content-Type: application/json',
  ],
]);
$batch = json_decode(curl_exec($ch), true); // 201 → status "pending"

# 201 Created — reserved, not sent
{
  "batch_id": 812,
  "status": "pending",
  "currency": "USDT_TRON",
  "item_count": 2,
  "total": "349.50",
  "fee": "…",
  "items": [ … ]
}

# later: GET /v1/payout/812, or a signed payout.sent webhook
# cancel while pending: POST /v1/payout/812/cancel