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    <title>SOST Protocol Updates</title>
    <link>https://sostcore.com</link>
    <description>Official protocol updates from SOST — Sovereign Stock Token</description>
    <language>en</language>
    <lastBuildDate>Thu, 24 Apr 2026 00:00:00 +0000</lastBuildDate>
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      <title>cASERT Final Calibration — Block 5,750</title>
      <link>https://sostcore.com/sost-explorer.html</link>
      <description>cASERT equalizer final calibration at block 5,750. H13 ceiling activated — 21 of 43 profiles now active (E7-H13). 3 new easing profiles (E7, E6, E5). Relief valve improved: drops to E7 after 605s (was H1 at 630s). Lag-adjust reduced from 30s to ~6s. Equalizer table recalibrated. SOST DEX alpha launch. This completes the cASERT equalizer implementation — no further structural changes planned. Node and miner update required.</description>
      <pubDate>Thu, 24 Apr 2026 00:00:00 +0000</pubDate>
      <guid>https://sostcore.com/updates/final-calibration-5750</guid>
    </item>

    <item>
      <title>Bug Fixed — Profile Descent During Long Blocks</title>
      <link>https://sostcore.com/sost-explorer.html</link>
      <description>The cASERT slew rate was designed to drop 1 level per block, but when no block was mined for a long time, the profile got stuck at H10/H11. Blocks were taking 30-50+ minutes because the system couldn't lower the difficulty without a new block. Fix: profile now descends in real time — 1 level per 10 minutes of stall. No artificial cap. Node and miner update required.</description>
      <pubDate>Wed, 23 Apr 2026 12:00:00 +0000</pubDate>
      <guid>https://sostcore.com/updates/slew-descent-fix</guid>
    </item>

    <item>
      <title>cASERT Profile Validation Improvement — Block 5,560</title>
      <link>https://sostcore.com/sost-explorer.html</link>
      <description>cASERT equalizer now enforces both ceiling and floor for declared profiles. Block #5525 had a lower-than-expected profile due to incomplete validation. From block 5,560, every block profile must fall within the deterministic range. Anti-stall easing remains supported. Node and miner update required. 123 cASERT tests passing.</description>
      <pubDate>Wed, 23 Apr 2026 00:00:00 +0000</pubDate>
      <guid>https://sostcore.com/updates/profile-floor-5560</guid>
    </item>

    <item>
      <title>VT Hard Fork — Block 10,000 Activation Package</title>
      <link>https://sostcore.com/sost-popc-contracts.html</link>
      <description>Six changes in one coordinated fork: Gold Vault 5-defense governance, Signature-bound PoW (anti-pool), PoPC Model A launch, PoPC Model B escrow on mainnet, version-bit signaling, Bond/Escrow/Capsule activation. Developer custody transitions to protocol custody at block 10,000.</description>
      <pubDate>Tue, 22 Apr 2026 00:00:00 +0000</pubDate>
      <guid>https://sostcore.com/updates/vt-block-10000</guid>
    </item>

    <item>
      <title>cASERT H11 Ceiling Activated at Block 5,480</title>
      <link>https://sostcore.com/sost-explorer.html</link>
      <description>Equalizer ceiling raised from H10 to H11 (16 of 40 profiles active). Finer-grained lag absorption for persistent 10-block schedule lead. All safety nets active. 118 cASERT tests passing.</description>
      <pubDate>Tue, 22 Apr 2026 00:00:00 +0000</pubDate>
      <guid>https://sostcore.com/updates/h11-activation</guid>
    </item>

    <item>
      <title>Sovereign Value Stack — Alpha Live on Sepolia</title>
      <link>https://sostcore.com/sost-positions.html</link>
      <description>SOSTEscrow deployed on Sepolia. First PoPC Model B position: 0.5 oz XAUT, 28-day lock. End-to-end settlement and refund paths verified. ED25519 signatures on all trade messages. Position market with full trades and reward-right splits. 375 tests, 0 failures.</description>
      <pubDate>Tue, 22 Apr 2026 00:00:00 +0000</pubDate>
      <guid>https://sostcore.com/updates/alpha-sepolia</guid>
    </item>

    <item>
      <title>V6++ avg288 bitsQ Controller Active</title>
      <link>https://sostcore.com/sost-explorer.html</link>
      <description>Half-life exponential replaced with avg288-based controller at block 5,175. Dynamic cap with dead band. Median removed from consensus at block 5,260.</description>
      <pubDate>Sat, 19 Apr 2026 00:00:00 +0000</pubDate>
      <guid>https://sostcore.com/updates/v6pp-avg288</guid>
    </item>

    <item>
      <title>V6 Chain Stability Fork at Block 5,000</title>
      <link>https://sostcore.com/sost-explorer.html</link>
      <description>Slew rate reduced to +/-1 per block. 40 profiles (E4-H35). Live lag from wall clock. Dynamic lag cap. Anti-stall immediate first drop.</description>
      <pubDate>Wed, 16 Apr 2026 00:00:00 +0000</pubDate>
      <guid>https://sostcore.com/updates/v6-fork</guid>
    </item>

    <item>
      <title>Genesis Block Mined</title>
      <link>https://sostcore.com/sost-genesis.html</link>
      <description>SOST genesis block mined on March 15, 2026 at 18:00:00 UTC. First reward: 7.85100863 SOST split constitutionally 50% miner / 25% Gold Vault / 25% PoPC Pool.</description>
      <pubDate>Sun, 15 Mar 2026 18:00:00 +0000</pubDate>
      <guid>https://sostcore.com/updates/genesis</guid>
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