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-rw-r--r--bip-0158.mediawiki2
1 files changed, 2 insertions, 0 deletions
diff --git a/bip-0158.mediawiki b/bip-0158.mediawiki
index 535ffd9..5ebfaed 100644
--- a/bip-0158.mediawiki
+++ b/bip-0158.mediawiki
@@ -315,6 +315,8 @@ complete serialization of a filter is:
* <code>N</code>, encoded as a <code>CompactSize</code>
* The bytes of the compressed filter itself
+A zero element filter MUST be written as one byte containing zeroes.
+
==== Signaling ====
This BIP allocates a new service bit: