David Post, Ph.D. Managing Director, IBM Blockchain Accelerator: How to Decentralize a Centralized Network

— David Post, Managing Director at IBM Blockchain Accelerator, discusses how transaction volume is the critical metric for blockchain network success, not underlying technology alone.

— IBM operates three distinct blockchain business models: selling Hyperledger-based technology, providing enterprise services (500+ engagements), and building/owning networks (Food Trust with Walmart, TradeLens with Maersk, WorldWire for currency transfers).

— Smart cities initiatives use technology like sensor networks and congestion pricing to optimize urban services—New York City's proposed congestion pricing applies blockchain-adjacent principles for infrastructure efficiency.

— Private permission networks should start centralized (7–8 on a 0–10 scale) to aggregate transaction volume, then gradually decentralize over time as governance and crypto-economic principles are introduced.

— Blockchain enables B2B multi-sided marketplaces (supplier identity, digital advertising reconciliation, shipping provenance) by standardizing business processes across enterprise ecosystems.

— Most public protocols will fail because they cannot aggregate sufficient transaction volume; fewer than 10 protocols may ultimately succeed, compared to roughly 5–6 dominant internet protocols.

— Focus on areas where transaction volume already exists rather than building new infrastructure and hoping users adopt it; blockchain works best as an extension to existing systems with proven demand.

— Evaluate blockchain projects by transaction volume first—it is the core defensible moat and market signal that a network has product–market fit; all other benefits follow from this metric.

— Consider hybrid cloud and blockchain architectures that combine public protocols (as tooling and layer 2 solutions) with private permission networks, allowing enterprises to leverage both decentralization principles and operational control.