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Anchor threshold raised to a full 2f+1 quorum: since block 14,961,456 (August 21, 2026) an anchor block does not finalize without at least six of nine valid Falcon-512 validator seals; measured on-chain before this text changed

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Aere Network 2026-08-22 12:49:41 +03:00
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commit 9109adce96
2 changed files with 10 additions and 4 deletions
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4
README.md
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@ -18,7 +18,9 @@ Consensus on chain 2800 is **hybrid post-quantum in a precise and limited sense*
mechanism: the QBFT header anchor in `anchor/` and `patches/0003`. Since 2026-08-14 every mechanism: the QBFT header anchor in `anchor/` and `patches/0003`. Since 2026-08-14 every
32nd block (an anchor block) must carry, under its block hash, a certificate of at least three 32nd block (an anchor block) must carry, under its block hash, a certificate of at least three
valid Falcon-512 validator seals (f+1 of nine; eight or nine are carried in practice), and a node valid Falcon-512 validator seals (f+1 of nine; eight or nine are carried in practice), and a node
does not finalize an anchor block without it. Classical secp256k1 ECDSA QBFT still finalizes every does not finalize an anchor block without it. Raised at block 14,961,456 (August 21, 2026): the
enforced minimum is now **six of nine, a full 2f+1 quorum**; the schedule step is
`aere.pq.anchorMinSeals=13014000:0,13034000:3,14961456:6`, uniform on all nine validators. Classical secp256k1 ECDSA QBFT still finalizes every
block; validator identity and QBFT message transport are classical. Correction 2026-08-19: the block; validator identity and QBFT message transport are classical. Correction 2026-08-19: the
per-block Falcon quorum rule armed at block 14,050,000 (`aere.falcon.forkBlock`) is, in the shipped per-block Falcon quorum rule armed at block 14,050,000 (`aere.falcon.forkBlock`) is, in the shipped
code, retired in favour of the anchor rules from block 13,014,000 and changed no enforcement, so code, retired in favour of the anchor rules from block 13,014,000 and changed no enforcement, so

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anchor/README.md
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@ -19,9 +19,13 @@ should not be confused:
replacement: a rewrite of anchored history must also forge the post-quantum signatures. replacement: a rewrite of anchored history must also forge the post-quantum signatures.
2. **The enforced minimum.** Since 2026-08-14 a node does not finalize an anchor block unless 2. **The enforced minimum.** Since 2026-08-14 a node does not finalize an anchor block unless
its certificate holds at least three valid Falcon-512 seals (f+1 of nine, the guarantee that at its certificate holds at least three valid Falcon-512 seals (f+1 of nine, the guarantee that at
least one honest validator signed; eight or nine are carried in practice). Blocks between least one honest validator signed; eight or nine are carried in practice). Raised at block
anchors carry no Falcon seals and are finalized by ECDSA alone, so the post-quantum guarantee 14,961,456 (August 21, 2026): the enforced minimum is now **six of nine, a full 2f+1 quorum**,
is a checkpoint about every 16 seconds, not a per-block quorum. the same count of validators QBFT itself requires to agree on the block. The schedule step is
`aere.pq.anchorMinSeals=13014000:0,13034000:3,14961456:6`, uniform on all nine validators; the
startup guard refuses any threshold above N - f = 7, the highest count reachable with the fault
budget down. Blocks between anchors carry no Falcon seals and are finalized by ECDSA alone, so
the post-quantum guarantee is a checkpoint about every 16 seconds, not a per-block quorum.
Correction 2026-08-19: the fleet was also configured on 2026-08-15 with `aere.falcon.forkBlock` Correction 2026-08-19: the fleet was also configured on 2026-08-15 with `aere.falcon.forkBlock`
at 14,050,000, intended as a per-block blocking Falcon quorum. In the shipped code that rule at 14,050,000, intended as a per-block blocking Falcon quorum. In the shipped code that rule