An editorial project, not a custodian.
We explain how digital asset custody works — segregation, key architecture, audits, recovery — so readers can evaluate custodians with better questions. We do not hold assets or offer paid services ourselves.
Custody language is written for specialists. It shouldn't be.
Tangany GmbH began as a small research desk trying to answer one question clearly: what actually keeps a digital asset safe once someone else is holding it? The more we read, the more we noticed how much of the available material assumed a technical or legal background the average reader doesn't have.
So we set out to write the plain-language version — one that still respects the complexity of the subject, but doesn't hide behind it. Everything published here is informational: we describe concepts and practices, we don't operate a custody service, and we never ask a reader to open an account or send funds.
Four commitments behind everything we publish.
Independence
We are not paid or owned by any custody provider, exchange, or wallet vendor, and we don't accept sponsored placement in our guides.
Accuracy over speed
We would rather publish a shorter, correct explanation than a fast one that overstates what a security control actually does.
Plain language
If a concept can't be explained without jargon, we treat that as our problem to solve, not the reader's.
Willingness to revise
Custody practice changes. When something we've published is out of date, we correct it rather than leave it standing.
A short timeline of what we've built so far.
Mapping the subject
We started by cataloguing the custody models in public use — cold storage, multi-party computation, hardware security modules — and the vocabulary attached to each.
Writing for a general reader
Every explanation on this site is drafted, then rewritten once with a non-specialist reader in mind, cutting anything that isn't load-bearing.
Ongoing review
We revisit published material as practices and terminology shift, and we welcome correction requests from readers with direct expertise.
Based in München, reachable directly.
Our small team reads and answers every message that comes through the contact page.