Seongnam, South Korea — Est. 2019

Your Bitcoin reserves deserve a ledger that survives power cuts and policy shifts

Content Haven Hub helps Korean small businesses maintain offline wallet records, reconcile cold-storage holdings against bank and tax records, and document the controls that protect reserve bitcoin from casual access or undocumented transfers.

Reserve Ledger Audit   Request a Consultation

Handwritten ledger pages beside a hardware wallet on a wooden desk

Ledger reconciliation session — Bundang office, 2025

What small businesses ask us to document

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Cold Storage

Offline wallet inventory

We catalogue each hardware wallet, paper backup location, and seed phrase custody arrangement so your team knows exactly which device holds which portion of reserves.

Reconciliation

Reserve-to-ledger matching

Monthly sessions compare on-chain balances with your internal ledger entries, flagging unexplained movements before they become audit problems or tax filing errors.

Controls

Access and approval records

We draft sign-off procedures for withdrawals, document who holds backup keys, and record the intervals at which reserves are physically verified.

Flagship service

Spreadsheet and calculator beside sealed envelope containing hardware wallet

Reserve Ledger Audit — from ₩450,000

Full cold-storage ledger review for businesses holding bitcoin reserves

A two-day engagement covering wallet inventory, ledger reconciliation, control gap analysis, and a written findings report with remediation steps your accountant can reference.

Service Details

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Controls Documentation

Written procedures for wallet access, withdrawal approval, backup verification, and key-holder responsibilities.

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Monthly Reconciliation Sessions

Recurring ledger-to-blockchain matching with documented sign-off for businesses that add or move reserve bitcoin regularly.

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From recent client records

Our import brokerage had three hardware wallets and a paper backup in a safety deposit box, but no single document explained which wallet corresponded to which ledger line. Content Haven Hub produced a custody map in two sessions. The accountant finally stopped asking us to "just check the blockchain" during quarterly closes.

— Han Ji-won, operations director, Bundang trading firm

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