Future of Blockchain Infrastructure: Public Networks, Private Networks, Interoperability and Collaboration

Context and Introduction

Final panel from examining the future of blockchain infrastructure in Latin America, comparing two distinct approaches: purpose-specific networks (RBB/BNDS) versus general-purpose networks (Base/Coinbase). Speakers: João Lopes (BNDS, RBB project manager) and Guilherme Betim (Coinbase, Latam Lead for Base expansion in Latin America).

Key Learning Points

• RBB (Rede Blockchain Brasil): Purpose-specific blockchain infrastructure for public sector and public interest, created by BNDS, PUC, RNP and other institutions. Not a cryptocurrency but a proof-of-authority network focused on transparency and public services.
• Base (Coinbase): General-purpose Layer 2 for all application types (finance, creator economy, payments, tokenization). Largest Layer 2 in TVL, user numbers, and trading volume with global presence.
• Conceptual difference: RBB empowers citizens through transparency; Base provides fast, reliable, scalable infrastructure for startups and institutions with financial use cases.
• BNDS pilots: RBB emerged from previous pilots (Amazon fund tracking with KFW, BNDS Token on Ethereum) that identified need for shared blockchain infrastructure.
• RBB incentives: Access to blockchain infrastructure without crypto costs, decentralized governance across multiple public institutions (municipal, state, federal), secure consensus without public validators.
• Collaboration opportunities: Interoperability between different networks (RBB, Base, DREX) allowing public data recorded on RBB while financial apps run on Base or DREX, complementing purposes.

Features and Methodology

RBB: Private network with multiple institutional participants, proof-of-authority, no network rewards, focus on public interest applications. Decentralized governance including executive, legislative, and public sector institutions. Use cases: vehicle passport tokenization (Vetri + Detran Paraná), transparency tracking, compliance by design.

Base: Optimism Layer 2 offering speed, scalability, low cost. Infrastructure for financial institutions, stablecoins, RWA tokenization, forex, and remittances. Goal: build ideal ecosystem for builders with trust, credibility, velocity.

Differentiators and Challenges

RBB Differentiators: Complete transparency (citizens can run nodes), public governance, regulatory compliance, no speculative cryptocurrencies. Challenge: Requires accredited public institution participation; doesn't yet allow third parties directly.

Base Differentiators: Liquidity over $1B in TVL, global community, support for all application types, hub planned in Florianópolis. Challenge: General purpose requires alignment with specific use cases for maximum synergy.

Synthesis

Not competing networks but complementary. Future of blockchain in Latin America allows coexistence: RBB handles transparency and public services, Base provides global financial infrastructure. Interoperability between different networks is possible and desirable when aligned in purpose. Real examples like Vetri (vehicle tokenization) show public-purpose applications work better in specialized ecosystems like RBB. Regional crypto growth depends on solving real local problems with tailored solutions.