Part of the CustodyStress archive of observed Bitcoin custody incidents
CS-01083
Gox rehabilitation trustee Nobuaki Kobayashi set a deadline of 15 September 2022
IndeterminateCase description
In September 2022, Mt. Gox rehabilitation trustee Nobuaki Kobayashi set a deadline of 15 September 2022 for the approximately 127,000 creditors to register their claims through the online rehabilitation portal. Creditors who had not updated their contact details since 2014 risked missing the deadline and forfeiting their claim entirely. Many creditors had changed email addresses, moved countries, or lost access to original login credentials in the intervening eight years.
Custody context
| Stress condition | Vendor lockout |
| Custody system | Exchange custody |
| Outcome | Indeterminate |
| Documentation | Unknown |
| Year observed | 2022 |
| Country | Japan |
Structural dependencies observed
What this illustrates
Getting access back required help from an institution — and that help wasn't available. It's not clear whether anyone ever regained access.
Outcome interpretation
Not enough information is available to determine the outcome.
Source
Publicly Reported
Evidence type
News article
Related cases involving vendor lockout
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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