All real conv:HASH citation hashes in text, lowercased, minus the documented spec placeholders. A conv: hash is exactly 8 lowercase hex-ish chars [0-9a-z] (matched case-insensitively, then lowered).
conv:HASH
text
conv:
[0-9a-z]
All real
conv:HASHcitation hashes intext, lowercased, minus the documented spec placeholders. Aconv:hash is exactly 8 lowercase hex-ish chars[0-9a-z](matched case-insensitively, then lowered).