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System Context

This view frames D4L in its broader environment and shows the canonical on-chain boundary versus off-chain UX/indexing services.

  • On-chain contracts are canonical for custody, settlement, transfer gating, match results, and forecast settlement/redemption.
  • Off-chain services are for UX/speed only: indexed read models, quote/simulation reads (eth_call), tx tracking, realtime feeds, and notifications.
  • API and Worker are the only writers to Postgres.
  • DEX liquidity is external to the D4L contracts but integrated after graduation.