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How about:</div>
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1> lists:flatten([integer_to_list(V,16)||<<V>> <= crypto:hash(md5, "really long book title that goes on and on forever")]).
<div>"C72BFE8643B0156ACD809D87D51E726C"</div>
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<div>OR</div>
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<div>2> binary_to_list(base64:encode(crypto:hash(md5, "really long book title that goes on and on forever"))).</div>
<span>"xyv+hkOwFWrNgJ2H1R5ybA=="</span><br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> erlang-questions <erlang-questions-bounces@erlang.org> on behalf of Lloyd R. Prentice <lloyd@writersglen.com><br>
<b>Sent:</b> Friday, August 13, 2021 3:44 PM<br>
<b>To:</b> erlang-questions <erlang-questions@erlang.org><br>
<b>Subject:</b> Long string to short ID</font>
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<div class="PlainText">Hello,<br>
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What might be a nifty way to turn a long book title with spaces into a short human-readable ID?<br>
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Thanks,<br>
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LRP<br>
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Sent from my iPad<br>
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