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Decompiled: DTCC's Collateral AppChain Wires Chainlink CRE Into Wall Street's Plumbing The Depository Trust and Clearing Corporation — the silent settlement layer behind roughly $4.7 quadrillion in 2025 securities flow — is shipping a tokenized collateral platform on Hyperledger Besu, with Chainlink's Runtime Environment (CRE) handling the orchestration.
Read past the press copy and the architecture is more interesting than the headline. Behind the meter, the Collateral AppChain is a private EVM execution layer (Besu) wrapped in CRE as the coordination substrate.
CRE is doing the work of an enterprise message bus, plus an oracle network, plus a workflow engine — eligibility checks, multi-asset valuation against on-chain price feeds, margin math, and the settlement instructions that fire back into legacy rails.
The pitch is that institutions stop writing bespoke ETL for every new asset class. The data layer is the integration.
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