🔐 PR 13: Institutional Custody & Escrow (223/239/246/250)

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.

docs/PiRC-239-Institutional-Liquidity-Pools.md

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+# PiRC-239: Institutional Liquidity Pools
+
+## 1. Executive Summary
+This standard defines permissioned liquidity pools designed specifically for wholesale capital and institutional actors. It strictly enforces PiRC-209 DID and PiRC-217 KYC requirements at the protocol level.
+
+**Dependencies**: PiRC-209, PiRC-217, PiRC-231
+**Status**: Complete reference implementation
+
+## 2. Architecture
+- Permissioned deposit and borrow functions
+- Whitelist and blacklist management via DID
+- Segregated liquidity for regulatory compliance
+
+## 3. Reference Smart Contracts
+**Solidity**: `contracts/PiRC239InstitutionalPools.sol`
+**Soroban**: `contracts/soroban/src/institutional_pools.rs`
+
+## 4. Implementation Roadmap
+- Phase 1: DID/KYC gated access controls
+- Phase 2: Institutional pool deployment
+- Phase 3: Cross-chain wholesale routing

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

docs/PiRC-250-Institutional-Account-Abstraction.md

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+# PiRC-250: Institutional Account Abstraction (Smart Accounts)
+
+## 1. Executive Summary
+This standard implements Account Abstraction (ERC-4337 compatible) tailored for institutional users. It enables gasless transactions, multi-signature corporate hierarchies, and automated compliance hooks directly at the wallet level.
+
+**Dependencies**: PiRC-209, PiRC-241
+**Status**: Complete reference implementation
+
+## 2. Architecture
+- Smart contract wallets for institutions
+- Paymaster integration for gas abstraction
+- Corporate role-based access control (RBAC)
+
+## 3. Reference Smart Contracts
+**Solidity**: `contracts/PiRC250SmartAccount.sol`
+**Soroban**: `contracts/soroban/src/smart_account.rs`
+
+## 4. Implementation Roadmap
+- Phase 1: Smart account deployment logic
+- Phase 2: Paymaster and gasless transactions
+- Phase 3: Corporate RBAC integration