Blockchain's promise to financial services was never really about cryptocurrency — it was about shared infrastructure. The idea that banks, insurers, and financial market participants could maintain a single, tamper-proof record of transactions rather than reconciling separate ledgers was compelling enough to attract serious institutional attention almost immediately. R3 was founded in 2014 as a consortium of major financial institutions exploring how distributed ledger technology could be applied to real financial processes. Its Corda platform was built specifically for regulated financial markets — privacy-preserving, energy-efficient, and designed to handle the compliance requirements that public blockchains ignore. The consortium has included over 200 banks and financial institutions at various points, and Corda has been used to build production applications in trade finance, capital markets, insurance, and digital currencies. In the broader blockchain landscape, R3 occupies an unusual position: serious, institutional, and genuinely focused on use cases that matter to regulated finance rather than the speculative end of the market. Whether enterprise blockchain ultimately delivers on its promise remains contested — but R3 is where the most credible version of that bet has been placed.