Custody Journal Bundle
A three-volume set covering hot wallets, cold storage, and quarterly reconciliation — numbered pages, acid-free paper, and a tamper-evident spine seal.
Details →Incheon · Since 2019
Your holdings deserve a ledger, not a login screen
Portal Heathercore produces printable custody journals for private investors who record wallet addresses, transaction dates, and cold-storage locations on paper — kept offline, reviewed quarterly, and filed alongside their estate documents.
What we print
Custody journals for every storage method
Quarterly Ledger Reprint
Replacement pages for investors who fill a volume each quarter. Matched to your original bundle serial number and page format.
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Seed Phrase Backup Sheets
Archival-grade backup forms with numbered word grids, checksum rows, and instructions for metal-plate engraving partners we work with in Seoul.
Details →Why paper
Discipline starts with a pen, not a password manager
Our readers are family-office principals, early-retirement savers, and independent holders who treat wallet custody the way accountants treat ledgers: dated entries, initials on every line, and a physical filing system their heirs can follow without guessing at recovery phrases buried in cloud storage.
Each journal ships from our Incheon bindery with a format guide, a reconciliation checklist, and space for two witness signatures on major transfers.
Our story
Reader letters
What holders say after their first quarter
After the FTX collapse I stopped trusting exchange exports. The custody bundle forced me to write down every address I actually control — and I found two wallets I'd forgotten about entirely.— Min-jun K., family office administrator, Busan
The quarterly reprint service matched my serial number perfectly. Binding is stiffer than Moleskine but the paper takes fountain ink without bleed. My only gripe: shipping to Jeju took an extra four days.— Hana Y., independent holder, Jeju City
Companion reference sheets
Get it from MicrosoftAvailable on the Microsoft Store
Field notes
Guides from the bindery desk
Why Abbreviated Addresses Belong in Your Ledger
A bindery perspective on recording wallet addresses on paper without copying the full string — and when to write the complete address instead.
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Filing Custody Journals Alongside Your Estate Documents
How to store printed wallet ledgers so your executor can find them — without compromising security during your lifetime.
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Paper Weight Matters for Fountain Pen Holders
Comparing 100 gsm and 120 gsm paper options for custody journals — bleed, feathering, and long-term archival properties.
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