dbis_core/docs/volume-viii/gql.md

Global Quantum Ledger (GQL)

Overview

The Global Quantum Ledger (GQL) is the next-generation DBIS ledger designed for post-quantum and quantum-accelerated settlement.

Quantum-Resistant Structures

• XMSS / SPHINCS+ state proofs
• PQ-signature blocks
• Quantum hashing (Q-Keccak)

Block Structure

GQL_Block = {
  block_id: UUID,
  timestamp: UTC,
  pq_signatures: [...],
  quantum_state_commit: ENTANGLED_HASH,
  multi_asset_root: HASH(cbdc, fiat, ssu, commodity, security),
  previous_block_hash: HASH256
}

Multi-Asset Integration

GQL natively supports:

• CBDC
• Fiat
• Commodity tokens
• Security tokens
• SSUs (Synthetic Settlement Units)
• Future quantum-native financial instruments

API Endpoints

• POST /api/v1/gql/blocks - Create GQL block
• GET /api/v1/gql/blocks/:blockId - Get GQL block
• POST /api/v1/gql/signatures - Create PQ signature block