Solana is a Layer 1 built for high throughput. It uses Proof of History, targets sub-second finality, and keeps fees low relative to many other smart-contract chains.
SOL pays fees, is staked to validators, and is used in governance. Issuance decays from an initial inflation schedule, and part of the transaction fee is burned.
Proof of History gives validators a shared clock, so they do not wait on a separate time vote for every block. A pipelined architecture processes work in parallel.
bitFlyer lists SOL/USDT spot and SOLUSDT perpetuals when those markets are open, and may offer flexible earn. Fills follow the order book. Fees follow the published schedule.