user7352: Sorry to sound like a total Bitcoin noob (which I am).
I've just made a purchase at the new Robocoin Bitcoin ATM.  I have a paper receipt that has a Private Key (starting with 5 and 51 characters long).
How do I import this key into my wallet? I'm using MultiBit 0.5.14 on Ubuntu.
Thanks in advance!

user12629: also I think the same process is described at https://multibit.org/help_importingPrivateKeys.html
it didn't work for me at first, but I changed the private key format to Bitcoin-Qt Format instead of Base58 and it worked.

user6767: Importing private keys into MultiBit:

Create a file with the extension ".key" (like "mybitcoinkeys.key")
Put each private key on a separate line.
Next to each private key, type a space and then the date that the private key was created (in UTC format).

(this last step is important because MultiBit will only check the blockchain from that date forward)
Here's a sample file that I dug up:
# KEEP YOUR PRIVATE KEYS SAFE !
# Anyone who can read this file can spend your bitcoin.
#
# Format:
#   <Base58 encoded private key>[<whitespace>[<key createdAt>]]
#
#   The Base58 encoded private keys are the same format as
#   produced by the Satoshi client/ sipa dumpprivkey utility.
#
#   Key createdAt is in UTC format as specified by ISO 8601
#   e.g: 2011-12-31T16:42:00Z . The century, 'T' and 'Z' are mandatory
#
THIS_IS_THE_PRIVATE_KEY 2014-08-01T00:00:00Z

# End of private keys

P.S. The date can be as early as you want but should absolutely be before the first transaction involving the address. The time of day doesn't matter because MultiBit will check starting with the beginning of the day anyway.

user6756: Tools -> Import Private Keys
Create a file with the private key inside it. If you do not add the time of creation of this address, you get this message:

"There were missing dates. Have to go back to genesis block."

I think this date should be the first transaction date registered in the block chain.

Key createdAt is in UTC format as specified by ISO 8601
  e.g: 2011-12-31T16:42:00Z . The century, 'T' and 'Z' are mandatory

To be safe, turn the date back a few days.

7352: <p>Sorry to sound like a total Bitcoin noob (which I am).
I've just made a purchase at the new Robocoin Bitcoin ATM.  I have a paper receipt that has a Private Key (starting with 5 and 51 characters long).
How do I import this key into my wallet? I'm using MultiBit 0.5.14 on Ubuntu.
Thanks in advance!</p>
 12629: <p>also I think the same process is described at <a href="https://multibit.org/help_importingPrivateKeys.html" rel="nofollow">https://multibit.org/help_importingPrivateKeys.html</a></p>

<p>it didn't work for me at first, but I changed the private key format to Bitcoin-Qt Format instead of Base58 and it worked.</p>
 6767: <p>Importing private keys into MultiBit:</p>

<ol>
<li>Create a file with the extension ".key" (like "mybitcoinkeys.key")</li>
<li>Put each private key on a separate line.</li>
<li>Next to each private key, type a space and then the date that the private key was created (in UTC format).</li>
</ol>

<p>(this last step is important because MultiBit will only check the blockchain from that date forward)</p>

<p>Here's a sample file that I dug up:</p>

<pre><code># KEEP YOUR PRIVATE KEYS SAFE !
# Anyone who can read this file can spend your bitcoin.
#
# Format:
#   &lt;Base58 encoded private key&gt;[&lt;whitespace&gt;[&lt;key createdAt&gt;]]
#
#   The Base58 encoded private keys are the same format as
#   produced by the Satoshi client/ sipa dumpprivkey utility.
#
#   Key createdAt is in UTC format as specified by ISO 8601
#   e.g: 2011-12-31T16:42:00Z . The century, 'T' and 'Z' are mandatory
#
THIS_IS_THE_PRIVATE_KEY 2014-08-01T00:00:00Z

# End of private keys
</code></pre>

<p>P.S. The date can be as early as you want but should absolutely be before the first transaction involving the address. The time of day doesn't matter because MultiBit will check starting with the beginning of the day anyway.</p>
 6756: <p>Tools -> Import Private Keys</p>

<p>Create a file with the private key inside it. If you do not add the time of creation of this address, you get this message:</p>

<blockquote>
  <p>"There were missing dates. Have to go back to genesis block."</p>
</blockquote>

<p>I think this date should be the first transaction date registered in the block chain.</p>

<blockquote>
  <p>Key createdAt is in UTC format as specified by ISO 8601
  e.g: 2011-12-31T16:42:00Z . The century, 'T' and 'Z' are mandatory</p>
</blockquote>

<p>To be safe, turn the date back a few days.</p>
