Documentation absent — hardware wallet (2023)

Blocked

Case description

A 2023 report from Unchained Capital estimated that up to 3.8 million Bitcoin—roughly 19% of the total supply—are in lost or stranded wallets. The report categorised losses into three main groups: early miners who lost access credentials in Bitcoin's first two years; exchange customers affected by early exchange collapses; and individual self-custody holders who lost seed phrases or hardware. The Unchained analysis put forward self-custody documentation failure as the single largest contributor to permanently inaccessible Bitcoin across all categories.

Custody context

Stress condition	Documentation absent
Custody system	Hardware wallet (single key)
Outcome	Blocked
Documentation	Unknown
Year observed	2023
Country	International

Structural dependencies observed

Single point of failure

What this illustrates

There was only one way in. When that path was gone, so was access. Access was not recoverable.

Outcome interpretation

Access was not possible under the reported conditions.

Source

Publicly Reported

Evidence type

News article

Evidence link

https://www.bankrate.com/investing/how-to-recover-lost-bitcoins-and-other-crypto/

Related cases involving documentation absent

193 cases involve documentation absent 274 cases involve hardware wallet (single key) View archive statistics →

This archive documents observed custody survivability failures. It does not attempt to document all Bitcoin losses or security incidents. Submit a case

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Framework references

Where Bitcoin Custody Intersects Legal and Fiduciary Authority

Where custody creates gaps in estate planning, fiduciary duty, and professional responsibility.

Professional Scope Boundary Matrix

What each professional or product covers, what they do not, and where gaps form between them.

The Independent Assessment Layer in Bitcoin Custody

How independent diagnostic layers emerge when multiple parties depend on shared infrastructure.