{
  "_comment": "The 5 canonical fields the real execution16 payment proof commits (output[4..9]). The facilitator binds the client's STARK proof to THIS receipt via verify_payment_receipt_with_backend. Regenerate with cairo-executable/scripts/e2e-payment.sh + dump via program_hash example.",
  "nullifier": "0x6c13b5fecddd9effbbfd011ad5ff615ddb3185d339039b80e4985cfe0513541",
  "amount": "0xf4240",
  "currency_id": "0xa",
  "timestamp": "0x6553f100",
  "subject": "0x5142847730f5679da72f376f10bd6ec6eb3f18231f2d16b1de1cb96b3d91fcd"
}