# \#typo

**URL:** https://scanalyst.fourmilab.ch/tag/typo/127.md

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## [Fat Finger—More Than 12,000 Ethereum Lost to Typos](https://scanalyst.fourmilab.ch/t/fat-finger-more-than-12-000-ethereum-lost-to-typos/141)

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**Author:** [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Replies:** 0\
**Last updated:** [18 October 2021 13:31 UTC](https://scanalyst.fourmilab.ch/t/fat-finger-more-than-12-000-ethereum-lost-to-typos/141 "2021-10-18T13:31:07Z")

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Unlike Bitcoin public addresses, which incorporate a 32 bit checksum, the original specification for Ethereum public addresses was simply strings of 40 hexadecimal digits, for example 0xc9b83ab54c84aac4445b56a63033db3d5b…