CBDC Pilots Interacting with Public Chains

Code: NT-127
Tags: #cbdc #policy #interop
Language: en

Catalyst

Multiple central banks moved sandbox CBDCs onto permissioned ledgers with read-only hooks into Ethereum and Solana to test programmability.

Structural Shifts

Commercial banks act as interface providers, bridging retail wallets to state-backed tokens while exposing audited APIs developers can call. Identity layers integrate with zero-knowledge proofs to keep retail privacy intact.

How a sandbox CBDC touches public chains

Sandbox CBDC issued On a permissioned ledger

Read-only hooks Into Ethereum and Solana, to test programmability

Banks as interface providers Bridge retail wallets, expose audited APIs

ZK identity layers Retail privacy kept intact

Sequence as described in the field notes above

Experiment Log

Pilot metrics include TPS during wholesale settlement trials, interoperability with DeFi collateral modules, and offline payment prototypes using secure elements.

Risk & Opportunity Grid

Opportunities: instant cross-border settlement and programmable tax logic. Risks: jurisdictional data sharing, wallet blacklisting, and crowding out private stablecoins if access thresholds stay low.

Full Note

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