CustodyStress
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Part of the CustodyStress archive of observed Bitcoin custody incidents
CS-01288

Documentation absent — hardware wallet (2024)

Blocked
Case description
As Bitcoin passed $100,000 in December 2024, a wave of media coverage on lost Bitcoin highlighted the scale of permanently inaccessible supply. Ledger analysts estimated that between 2.3 million and 3.7 million Bitcoin were permanently lost—representing up to 18% of the total eventual supply. The estimate was based on wallet addresses that had not moved Bitcoin in over a decade combined with on-chain activity analysis suggesting the keys were likely lost rather than held deliberately. The analysis distinguished between long-term holders (HODL behaviour) and genuinely inaccessible wallets using time-series patterns in transaction activity.
Custody context
Stress conditionDocumentation absent
Custody systemHardware wallet (single key)
OutcomeBlocked
DocumentationUnknown
Year observed2024
CountryInternational
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
Related cases involving documentation absent
193 cases involve documentation absent 274 cases involve hardware wallet (single key) View archive statistics →
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Framework references
Terms guide
Survives
Access remained possible under the reported conditions.
Constrained
Access remained possible, but only with delay, dependence, or significant difficulty.
Blocked
Access was not possible under the reported conditions.
Indeterminate
There was not enough information to determine the outcome.
Single-person knowledge
Recovery depended on information or capability held by one individual who was unavailable.
Institutional dependence
Recovery depended on a third-party institution or service that was inaccessible or uncooperative.
Documentation gap
Recovery depended on instructions that were missing, incomplete, or unclear.
Authority mismatch
The person with legal authority to act did not have operational access, or vice versa.
Original text
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