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BULLISH STABLE SOL

The Alpenglow upgrade will eliminate the Proof-of-History re-anchoring and TowerBFT fork-choice vulnerabilities that enable the discovered clock attack.

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MOMENTUM 0pp
FIRST SEENAug 21, 2026
LAST SEENAug 21, 2026
→ TRAJECTORY Quiet

Too little corroboration in the last 3 days to call a trend (1 article). Watching for it to gain traction.

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RELATED THEMES

Themes moving alongside this one — where the same story is bleeding across assets, and where it's contested.

⚔ COMPETING Delays in Alpenglow activation from September to October 2026 and ongoing security testing create uncertainty around the timeline for realizing finality improvements. BEARISH SOL ⚔ COMPETING Solana's legacy consensus mechanism contains a protocol-valid clock attack vulnerability that allows malicious leaders to manipulate transaction ordering and suppress honest block proposals. BEARISH SOL ≈ RELATED Solana Alpenglow Finality Upgrade BULLISH SOL ⇄ CROSS-ASSET The Glamsterdam upgrade will require significant developer work to update wallets, indexers, and gas estimation tools, creating near-term friction in the Ethereum ecosystem. BEARISH ETH ⇄ CROSS-ASSET The Glamsterdam upgrade introduces enshrined proposer-builder separation and block-level access lists that will fundamentally change Ethereum's block production and validation infrastructure. NEUTRAL ETH
SOURCE EVIDENCE

"Those designs remove the PoH re-anchoring and TowerBFT fork-choice prerequisites TI and FTI use. The public record lacks an Anza or Solana Foundation analysis mapping each attack step onto shipping Alpenglow code or ruling out an analogous issue in migration logic."

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