Digital Assets & Financial Technology
Security and payment infrastructure for digital assets
Two connected businesses: Secure Ledger Solutions protects digital assets through security and custody architecture, and LamportPay explores payment infrastructure built on the same thinking.
What Great Winchester Group is not.
Great Winchester Group is not a crypto exchange, bank, broker or regulated financial institution. Secure Ledger Solutions is a security and advisory business. LamportPay is a technology concept in demo. Neither holds customer funds or handles fiat.
Secure Ledger Solutions
Digital asset security & infrastructure
Engagements are structured around portfolio size, asset distribution, custody model and risk exposure — covering wallet security architecture, cold storage, blockchain analysis and operational risk, with AML/KYC-aware frameworks.
Digital asset security consulting
Advisory covering attack vector analysis, wallet infrastructure design and security protocol implementation.
Wallet security & cold storage
Hardware wallets, air-gapped storage, multi-signature setups and private key sharding.
Custody architecture
Multi-layer cold storage design, private key isolation, approval hierarchies and operational security frameworks.
Blockchain security audits
Analysis of wallet activity, transaction history and on-chain exposure to identify vulnerabilities and anomalous behaviour.
Liquidity execution & conversion
Large transactions executed through OTC liquidity providers with slippage-controlled routing, avoiding exposure to public order books.
Recovery & risk advisory
Blockchain forensics and transaction tracing for compromised assets, plus assessment of phishing risk, key management flaws and approval processes.
Who it serves
Recognition
Best of Tech 2026 finalist
Secure Ledger Solutions was named a Best of Tech 2026 finalist by Greater Cleveland Partnership. For a specialist business standing alongside long-established institutions, finalist recognition is a meaningful milestone.
We describe this accurately as finalist recognition, not as an award win.
Finalist announcement
Secure Ledger Solutions was named among the Best of Tech 2026 finalists.
Named alongside the field
The finalist screen placed Secure Ledger Solutions beside established technology organisations.
Recognition on stage
Finalists were recognised during the programme before winners were announced live.
LamportPay
Financial technology & payment infrastructure
A concept for sending supported crypto assets and settling through USDC, with local-currency payout routed through licensed settlement partners. It is currently a demo, not a live service.
LamportPay is currently a demo, not a live service.
The current demo is a small real Jupiter SOL-to-USDC swap only. USDC returns to the connected wallet. LamportPay does not custody funds, and fiat payout remains disabled.
Sender pays in crypto
A sender starts from supported crypto assets held in their own wallet.
Swap routed on Solana
The current demo shows a small real SOL to USDC swap routed with the Jupiter Swap API. Output returns to the connected wallet.
USDC settlement layer
USDC acts as the settlement asset between the crypto side and the local-currency side.
Local-currency payout request
Payout requests would be routed through licensed settlement partners. This remains disabled.
- Demo mode only: no real fiat, no KYC and no customer funds are processed.
- LamportPay does not custody funds — swap output returns to the connected wallet.
- Fiat payout is disabled until licensed partner approval.
- Swap limits in the demo are 0.001–0.01 SOL.
- Displayed rates and figures are illustrative, not customer activity.
Next step
Secure, structure and understand your digital assets
Speak with us about security frameworks, custody architecture and how the two businesses work together.