The Coldcard wallet hack involved a firmware bug (March 2021 build) that made some wallets generate seed phrases with weaker randomness
DECODED OP_RETURN OUTPUTS · 1
vout 0Message54686520436f6c64636172642077616c6c6574206861636b20696e766f6c7665642061206669726d776172652062756720284d617263682032303231206275696c64292074686174206d61646520736f6d652077616c6c6574732067656e657261746520…
MORE FROM BC1Q233HN3…RSVHThe United States went off a pure gold standard under President Franklin Roosevelt during the Great Depression in 193359d ago
Etched into the Bitcoin blockchain. It cannot be deleted, edited, or taken down.
ON-CHAIN RECORD
TXID
BLOCK#965,830 · 2026-09-06
FEE10 sat/vB · 4,710 sats ≈ $3.76
ADDRESS
SENDER
COLLECTION—
PROTOCOLtext
CATEGORYOther (AI)
SIZE135 bytes
TIME59d ago · 20:58 UTC
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