Solana’s 1M+ payments-per-second demo depends on off-chain vouchers that may vanish after a restart unless they’re stored durably. If a customer starts closing the channel before a merchant settles its final voucher onchain, delivered service can go unpaid. https://cryptoslate.com/solanas-million-payments-a-second-ai-system-can-leave-sellers-unpaid-even-after-they-deliver/(CryptoSlate)