---
title: "Solana Alpenglow Goes Live in 'Most Ambitious' Upgrade Since Ethereum's Merge"
description: "2026-10-21にDecryptが報道。検知後24時間でETH -3.04%。 Decrypt: “The new consensus protocol retires TowerBFT, which had run Solana since its 2020 launch, after a handoff on the live network.” 検知後24時間でETHは-3.04%変動。価格観測は因果関係を証明しません。"
language: ja
canonical: "https://whycoinmoves.com/ja/events/ethereum-solana-alpenglow-goes-live-most-6aae598c1cea40"
published: 2026-10-21T14:27:37.000Z
updated: 2026-10-22T14:29:21.000Z
indexable: false
---

# Solana Alpenglow Goes Live in 'Most Ambitious' Upgrade Since Ethereum's Merge

2026-10-21にDecryptが報道。検知後24時間でETH -3.04%。 Decrypt: “The new consensus protocol retires TowerBFT, which had run Solana since its 2020 launch, after a handoff on the live network.” 検知後24時間でETHは-3.04%変動。価格観測は因果関係を証明しません。

Attributed sources: [Decrypt](<https://decrypt.co/381484/solana-alpenglow-goes-live-in-most-ambitious-upgrade-since-ethereums-merge>)

## Key facts

Decrypt: “The new consensus protocol retires TowerBFT, which had run Solana since its 2020 launch, after a handoff on the live network.” 検知後24時間でETHは-3.04%変動。価格観測は因果関係を証明しません。
Evidence strength: 単一情報源, 1 publisher group(s) (Decrypt); this describes source coverage, not truth or causation.
検知後の観測リターン：5分: -0.24% (BTC比差 -0.14 pt; 21/10/2026, 14:27 → 21/10/2026, 14:33, UTC; Gate · USDT)；1時間: +0.98% (BTC比差 +0.51 pt; 21/10/2026, 14:27 → 21/10/2026, 15:28, UTC; Gate · USDT)；24時間: -3.04% (BTC比差 -0.18 pt; 21/10/2026, 14:27 → 22/10/2026, 14:27, UTC; Gate · USDT)。記載のない時間枠は未取得です。
直近30日間の時間足絶対リターンの99パーセンタイルは1.46%（OKX · USDT；基準 21/10/2026, 14:27, UTC）です。時間足基準は分単位の変動と直接比較できません。

## Returns after site detection

| Window | Return | BTC | Difference from BTC | Actual sampled interval (UTC) | Source |
| --- | --- | --- | --- | --- | --- |
| 5分 | -0.24% | -0.10% | -0.14 pt | 21/10/2026, 14:27 → 21/10/2026, 14:33 | Gate · USDT |
| 1時間 | +0.98% | +0.47% | +0.51 pt | 21/10/2026, 14:27 → 21/10/2026, 15:28 | Gate · USDT |
| 24時間 | -3.04% | -2.86% | -0.18 pt | 21/10/2026, 14:27 → 22/10/2026, 14:27 | Gate · USDT |

## Historical hourly baseline

| Metric | Value |
| --- | --- |
| Ready | true |
| Coverage | 100.0% (720/720) |
| Median absolute hourly return | 0.19% |
| 99th percentile of absolute hourly returns | 1.46% |
| BTC beta | 1.17 |
| Source / cutoff (UTC) | OKX · USDT / 21/10/2026, 14:27 |

## Claims and open questions

- No independently verified causal explanation is available.

## Source evidence

- [Solana Alpenglow Goes Live in 'Most Ambitious' Upgrade Since Ethereum's Merge](<https://decrypt.co/381484/solana-alpenglow-goes-live-in-most-ambitious-upgrade-since-ethereums-merge>) — Decrypt; published 21/10/2026, 14:24; received 21/10/2026, 14:27 (UTC).


## Recent ETH events and market reactions

公開基準を満たした他のETHイベントはまだありません。

- [Full coin archive](<https://whycoinmoves.com/ja/coins/ethereum>)

## Research for this archive

- [Altcoin beta to Bitcoin: BTC, ETH, SOL and DOGE hourly returns](<https://whycoinmoves.com/ja/research/hourly-returns-and-bitcoin-beta.md>)
- [Perpetual funding rates and annualized yield: a 2025 comparison](<https://whycoinmoves.com/ja/research/funding-rates-versus-investor-returns.md>)
- [Crypto listing and delisting effects: an OKX price study](<https://whycoinmoves.com/ja/research/exchange-listing-and-delisting-price-reactions.md>)
- [XRP lawsuit and Ethereum ETFs: reading SEC filings and rulings](<https://whycoinmoves.com/ja/research/regulatory-filings-versus-media-headlines.md>)

[Methods and limitations](<https://whycoinmoves.com/ja/methodology>)
Publisher count is not independent evidence count. Price changes cannot verify news or prove causation.