diff --git a/test/formal/PROVEN-PROPERTIES.md b/test/formal/PROVEN-PROPERTIES.md
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--- a/test/formal/PROVEN-PROPERTIES.md
+++ b/test/formal/PROVEN-PROPERTIES.md
@@ -1,6 +1,6 @@
 # Formally analysed properties, AERE PQC contracts
 
-> **Note added 2026-08-19.** Statements in this document that consensus on chain 2800 is (or remains) classical secp256k1 ECDSA QBFT were written before the post-quantum header anchor went live, and remain true for block-by-block finality. Since block 13,014,000 every 32nd block also carries, under its block hash, a certificate of validator Falcon-512 seals, and since block 13,034,000 a node rejects such an anchor block with fewer than three valid seals (f+1 of nine; eight or nine are carried in practice). That is a post-quantum checkpoint about every 16 seconds, not a per-block quorum: the claim published on 2026-08-15 that from block 14,050,000 no block finalizes without a post-quantum quorum was wrong (the per-block rule armed at that height is retired in the shipped code in favour of the anchor rules) and was withdrawn on 2026-08-19. Details: https://aere.network/quantum.html and the aere-node repository, anchor/README.md.
+> **Note added 2026-08-19.** Statements in this document that consensus on chain 2800 is (or remains) classical secp256k1 ECDSA QBFT were written before the post-quantum header anchor went live, and remain true for block-by-block finality. Since block 13,014,000 anchor blocks (every 32nd block, on every one since block 13,889,296) also carry, under the block hash, a certificate of validator Falcon-512 seals, and since 2026-08-14 a node rejects an anchor block with fewer than three valid seals (f+1 of nine; eight or nine are carried in practice). That is a post-quantum checkpoint about every 16 seconds, not a per-block quorum: the claim published on 2026-08-15 that from block 14,050,000 no block finalizes without a post-quantum quorum was wrong (the per-block rule armed at that height is retired in the shipped code in favour of the anchor rules) and was withdrawn on 2026-08-19. Details: https://aere.network/quantum.html and the aere-node repository, anchor/README.md.
 
 Symbolic execution with **halmos 0.3.3** (Z3 4.12.6) over **Solidity 0.8.23** builds
 of the **LIVE** contracts: