By 2026, with the rapid advancement of RWA, DePIN, and cross-chain finance, the key issue has shifted from "Can assets be tokenized?" to "Can credit be globally verified?" Creditcoin is an L1 public blockchain purpose-built around on-chain credit. Leveraging an immutable credit ledger, cross-chain interoperability, and decentralized identity mechanisms, it empowers individuals without bank accounts or traditional credit histories to accumulate verifiable credit through on-chain lending and repayment activities—enabling them to access global capital and integrate into the real-world asset ecosystem.