Cold wallet records, assembled for your filing

Workspace Cedarcore prepares transaction reference logs from offline cold wallets—hardware devices, paper backups, and air-gapped exports—so South Korean residents and cross-border holders can file with documented evidence rather than scattered screenshots.

Organized financial documents and ledger pages on a desk

Reference logs drawn from offline holdings

Hardware wallet exports

We reconcile device-native transaction histories with on-chain confirmations, noting dates, counterparties, and fee structures in a single chronological reference file.

Paper seed and backup records

When holdings moved between cold storage formats, we trace the migration path and document each transfer with the evidence your accountant expects.

Assembly engagements

Home

Annual Tax Reference Review

₩180,000 per review session

A structured review of your assembled reference logs before submission — checks completeness, labeling consistency, and common filing omissions.

View details
Home

Cold Wallet Log Assembly

From ₩480,000 — scope depends on wallet count and chain diversity

Full assembly of transaction reference logs from hardware wallets, paper backups, and air-gapped exports into a single filing-ready document set.

View details
Home

Transaction Reconciliation

₩220,000–₩380,000 depending on gap volume

Targeted reconciliation when device exports, paper notes, and blockchain data disagree — common after wallet migrations or partial backups.

View details

What holders say after assembly

"My Ledger history and old paper notes finally sat in one CSV my tax preparer could read. The fee breakdown per chain was the part I had never managed myself."

— Hyeon-jun K., self-employed developer, Seoul

"They flagged two transfers I had mislabeled as internal moves. Not everything was perfect on first pass, but the revision round was thorough."

— Margaret L., expatriate holder, Incheon

Read client stories
Available on the Microsoft Store

Offline Wallet Tracker companion for local record review

Get it from Microsoft

Begin assembly before the March filing window closes

Most engagements take two to four weeks depending on wallet count and chain diversity. Early intake in January leaves room for missing-export recovery.

Schedule intake call