Ledger offering

UTXO Ledger Audit & Rebuild

A full review of your offline UTXO list against known addresses, with a rebuilt paper or air-gapped ledger you keep.

FormatIn-person session
DurationHalf day to two days
LocationYeouido office or arranged site
PricingFrom ₩450,000 per engagement

Who this is for

Bitcoin-only holders who keep coins offline and need a trustworthy UTXO and address ledger that does not live on a phone or exchange history. Typical clients have multiple receive addresses, older change outputs they no longer remember clearly, or notebooks that no longer match what their signing device shows after a careful offline check.

What you leave with

A rebuilt ledger: each tracked address, each known UTXO with amount and origin notes you approve, and a signed session sheet describing what was verified and what remains unknown. The physical or air-gapped file stays with you. We retain only the administrative notes needed for follow-up (never seed phrases, never private keys).

Included

  • Intake interview on how you currently track addresses and spends
  • Structured worksheet for address inventory
  • Side-by-side comparison of your existing notes against device-reported UTXOs (you operate the device; we guide)
  • Ink or printed master ledger pages, or an air-gapped file you export yourself
  • One clarification call within fourteen days of the session

Excluded

  • Key generation, seed backup, or device setup as a primary engagement
  • Moving, sweeping, or consolidating coins on your behalf
  • Tax filing, legal advice, or exchange account recovery
  • Ongoing remote monitoring of the blockchain

How the session runs

  1. Brief — You tell us address count, record format (paper, metal plates, encrypted USB), and known gaps.
  2. Inventory — We list every address you intend to track and mark duplicates or retired ones.
  3. UTXO pass — Under your control, each relevant output is recorded with amount, approximate date of receipt, and spend status.
  4. Rebuild — We produce the master ledger and walk you through storage and update habits.
  5. Close — You sign the session sheet; we schedule optional reconciliation if needed.

Preparation

Bring existing notebooks or printouts. Do not bring seed phrases into the meeting room unless you have a pre-agreed air-gapped workflow. Prefer to leave seeds sealed at home. If you use a hardware signer, bring the device and any viewing-only companion you already trust.

Constraints

Sessions are Bitcoin-only. We do not maintain ledgers for altcoin balances. Work is confidential under our engagement terms. Complex estates with more than fifty active addresses may need a second day; we quote before extending.

Next step

Request a session and include a rough address count. We reply within two business days with availability and a written estimate.