Part of the CustodyStress archive of observed Bitcoin custody incidents
CS-01218
Hidden wallet discovered — hardware wallet (2024)
SurvivesCase description
A 2024 estate case involved the family of a deceased Bitcoin holder who had used a paper wallet created in 2015. The wallet's public address was known—it appeared on the blockchain with a significant balance. The private key had been printed on paper and stored in a fireproof box. When the box was opened, it was found to contain a damaged paper wallet where approximately one-third of the private key characters were illegible due to ink bleed from water exposure. A recovery service was engaged. By systematically testing all plausible substitutions for the illegible characters, the correct private key was reconstructed after approximately 48 hours of computation.
Custody context
| Stress condition | Seed phrase unavailable |
| Custody system | Hardware wallet (single key) |
| Outcome | Survives |
| Documentation | Unknown |
| Year observed | 2024 |
| Country | International |
Structural dependencies observed
Outcome interpretation
Access remained possible under the reported conditions.
Source
Privately Reported
Evidence type
News article
Related cases involving seed phrase unavailable
146 cases involve seed phrase unavailable
274 cases involve hardware wallet (single key)
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This archive documents observed custody survivability failures. It does not attempt to document all Bitcoin losses or security incidents.
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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.
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