diff --git a/README.md b/README.md
index 1116a82..054e1ba 100644
--- a/README.md
+++ b/README.md
@@ -16,11 +16,13 @@ Falcon-1024 (`0x0AE2`), ML-DSA-44 (`0x0AE3`), SLH-DSA-128s (`0x0AE4`) and SHAKE2
 have been live as precompiles since block 9,189,161. You can call them yourself against
 `https://rpc.aere.network` without asking us for anything.
 
-**Consensus on chain 2800 is classical secp256k1 ECDSA QBFT.** The post-quantum work lives at the
-signature, precompile, account and transport layers. Nothing in this repository makes the consensus
-post-quantum, and nothing in it should be read as claiming so. Where you see post-quantum consensus
-discussed, it is research about what a future activation could look like, not a description of the
-running chain.
+**Consensus on chain 2800 is classical secp256k1 ECDSA QBFT on every block, with a post-quantum
+checkpoint every 32 blocks.** Since block 13,014,000 anchor blocks 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, not a quorum; eight or nine are carried in practice). 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
+that qualification (the per-block quorum claim published on 2026-08-15 was withdrawn on 2026-08-19).
 
 Two further limits worth knowing before you judge anything else here:
 
@@ -29,8 +31,8 @@ Two further limits worth knowing before you judge anything else here:
 - The on-chain zero-knowledge verifiers are classical BN254. They are broken by Shor's algorithm
   like any other elliptic-curve construction, and we do not describe them as quantum-safe.
 
-The network is operated by seven Foundation-run validators, so its Nakamoto coefficient is
-effectively one today. That is a real limitation, it is on the roadmap, and it is not fixed by any
+The network is operated by nine Foundation-run validators (f=2, commit quorum 6 of 9; seven until
+2026-08-09), so its Nakamoto coefficient is effectively one today. That is a real limitation, it is on the roadmap, and it is not fixed by any
 code in this repository.
 
 ## Layout