diff --git a/README.md b/README.md
index eb38bc3..6c52df2 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ checkpoint every 32 blocks.** Since block 13,014,000 anchor blocks carry, under
 certificate of validator post-quantum seals (Falcon-512, with SLH-DSA-SHA2-128s as well since
 2026-09-04, at every 128th block since 2026-09-29; every anchor was 128 blocks apart from block
 17,225,968 to block 20,746,736). Since block 20,715,632 (2026-09-29) a node rejects an anchor block
-with fewer than seven valid seals per scheme, the full quorum of the ten validators; the minimum was
+with fewer than seven valid seals per scheme, as many as the quorum of the ten validators (the seals prove those validators signed the block, not that it was decided, per the AIP-22 erratum of 2026-10-01); the minimum was
 three (f+1 of nine, not a quorum) from 2026-08-14 and six from 2026-08-21. That
 checkpoint lives in the aere-node repository (patch 0003 and `anchor/`), not in this one: nothing in
 this repository makes consensus post-quantum, and the chain is not "post-quantum consensus" without