diff --git a/docs/PiRC-223-Institutional-Custody.md b/docs/PiRC-223-Institutional-Custody.md
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+# PiRC-223: Multi-Signature Institutional Custody
+Defines a secure vault for institutional participants requiring $M$ of $N$ signatures based on PiRC-209 verified DIDs.
+---
+## 3. Reference Smart Contracts
+**Solidity**: `contracts/PiRC223InstitutionalCustody.sol`  
+**Soroban**: `contracts/soroban/src/custody.rs`
+
+**Status**: Ready.
diff --git a/docs/PiRC-246-Institutional-Escrow-Vaults.md b/docs/PiRC-246-Institutional-Escrow-Vaults.md
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+# PiRC-246: Institutional Escrow Vaults
+
+## 1. Executive Summary
+This standard defines secure, multi-signature institutional escrow vaults. It ensures that large-scale wholesale capital transfers are held in trust until predefined cryptographic conditions (e.g., PiRC-245 settlement batching or PiRC-214 Oracle triggers) are met.
+
+**Dependencies**: PiRC-209, PiRC-228
+**Status**: Complete reference implementation
+
+## 2. Architecture
+- Multi-signature approval mechanisms
+- Time-locked and condition-locked escrow
+- Integration with Justice Engine for dispute resolution
+
+## 3. Reference Smart Contracts
+**Solidity**: `contracts/PiRC246EscrowVault.sol`
+**Soroban**: `contracts/soroban/src/escrow_vault.rs`
+
+## 4. Implementation Roadmap
+- Phase 1: Multi-sig and time-lock logic
+- Phase 2: Oracle-based condition triggers
+- Phase 3: Justice Engine dispute integration