Tempo, a payment-focused Layer 1 blockchain, has launched its testnet as of December 9. The project, which is backed by major investors Stripe and Paradigm, achieved a $50 million valuation during its Series A funding round. In related developments, Polarise, an AI-driven social finance protocol, activated its SocialFi module on December 29. This new feature allows users to earn points through their activity on the platform. Additionally, DeepNode AI announced an early-bird badge task on December 18, further engaging its community.