Litecoin.watch (2026-09-30). Payment URI parsing and QR round-trips. Version: Electrum-LTC 4.2.2.1 / bip21 3.0.0 · release 2026-09-30.1. https://litecoin.watch/articles/what-a-litecoin-payment-qr-code-actually-tells-your-wallet Method and data: https://litecoin.watch/uploads/research/practical-20260930/qr/README.txt