Layer 2 blockchain Optimism sells 116M tokens worth $157M to seven buyers in a "private" sale, after airdropping 19.4M tokens to 31K+ users earlier this week (Oliver Knight/CoinDesk)

Oliver Knight / CoinDesk:
Layer 2 blockchain Optimism sells 116M tokens worth $157M to seven buyers in a “private” sale, after airdropping 19.4M tokens to 31K+ users earlier this week  —  The token sale was described as a “planned event.”  —  The foundation behind layer2 blockchain Optimism …