About Content Birchline

Official registration

Registered business name: Content Birchline Co., Ltd.

Established: 2019

Registered office: Office 9, 25 Demo-daero, Seongdong-gu, Seoul 00000

Content Birchline began when founder Min-jae Park, formerly a corporate records archivist, noticed friends in Seoul’s self-custody community keeping meticulous notebooks but no consistent monthly artifact they could share with spouses or accountants. The firm incorporated in 2019 to offer that artifact as a delivered service—not software, not custody—just careful documentation under strict no-key rules.

What we do

We sit beside you—or on a video call—and record what your devices display. Our staff train in observation etiquette: no photography of seed backups, no requests to export private material, no connection to your machines beyond what you choose to show.

People

Min-jae Park — Lead archivist, twelve years in regulated records management before founding Content Birchline.

Sora Im — Client scheduling and courier coordination; fluent in Korean and English.

Daniel Cho — Verification specialist focused on multi-chain address labeling.

Working approach

We treat each summary as a physical document first. PDFs are encrypted and checksum-verified; printed copies use acid-free paper suitable for long filing. We maintain no cloud copy of your balances after delivery unless you explicitly request secure archival storage under a separate agreement.

Values

Accuracy over speed. Plain language over jargon. Your keys remain yours.

Community

We host occasional open evenings at our Seongdong office where clients compare labeling conventions—never balances—in a room with no cameras.