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When sending a transaction using a wallet at you can add a public message. This message shows up when viewing the transaction at

Is this message embedded in the actual block chain or is it just a record in the database of the server of

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marked as duplicate by Stephen Gornick, ripper234, Nick ODell, o0'., cdecker Feb 25 '13 at 8:38

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Just recorded in the database. – Nick ODell Feb 22 '13 at 20:44
up vote 6 down vote accepted

It did for a few days, before the operator concluded blockchain bloat was not good for Bitcoin. Now those are only stored on hosts.

For more details, see:

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