---
title: "Undo file overflow under extreme conditions"
description: "2026-10-28にBitcoin Coreが報道。 Bitcoin Core: “Disclosure of the details of a bug that lets a miner corrupt the undo data of other nodes, causing them to shut…"
language: ja
canonical: "https://whycoinmoves.com/ja/events/bitcoin-undo-file-overflow-under-extreme-f1ab709d188592"
published: 2026-10-28T18:18:22.000Z
updated: 2026-10-28T19:19:59.000Z
indexable: false
---

# Undo file overflow under extreme conditions

2026-10-28にBitcoin Coreが報道。 Bitcoin Core: “Disclosure of the details of a bug that lets a miner corrupt the undo data of other nodes, causing them to shut…

Attributed sources: [Bitcoin Core](<https://bitcoincore.org/en/2026/10/28/disclose-undo-overflow/>)

## Key facts

Bitcoin Core: “Disclosure of the details of a bug that lets a miner corrupt the undo data of other nodes, causing them to shut down if a reorg of precisely the right blocks follows, or on Windows and 32-bit systems as soon as the affected blocks are…” 検知後1時間でBTCは+0.41%変動。価格観測は因果関係を証明しません。
Evidence strength: 公式情報源, 1 publisher group(s) (Bitcoin Core).
検知後の観測リターン：5分: +0.07% (2026-10-28 18:18 → 2026-10-28 18:23, UTC; Gate · USDT)；1時間: +0.41% (2026-10-28 18:18 → 2026-10-28 19:18, UTC; Gate · USDT)。
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1.01%（OKX · USDT；基準 2026-10-28 18:18, UTC）です。

## Returns after site detection

| Window | Return | BTC | Difference from BTC | Actual sampled interval (UTC) | Source |
| --- | --- | --- | --- | --- | --- |
| 5分 | +0.07% | +0.07% | 0.00 pt | 2026-10-28 18:18 → 2026-10-28 18:23 | Gate · USDT |
| 1時間 | +0.41% | +0.41% | 0.00 pt | 2026-10-28 18:18 → 2026-10-28 19:18 | Gate · USDT |

## Historical hourly baseline

| Metric | Value |
| --- | --- |
| Coverage | 100.0% (720/720) |
| Median absolute hourly return | 0.14% |
| 99th percentile of absolute hourly returns | 1.01% |
| BTC beta | 1.00 |
| Source / cutoff (UTC) | OKX · USDT / 2026-10-28 18:18 |

## Claims and open questions

- No independently verified causal explanation is available.

## Source evidence

- [Undo file overflow under extreme conditions](<https://bitcoincore.org/en/2026/10/28/disclose-undo-overflow/>) — Bitcoin Core; published 2026-10-28 04:00; received 2026-10-28 18:18 (UTC).


## Recent BTC events and market reactions

公開基準を満たした他のBTCイベントはまだありません。

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

## 関連リサーチ

- [Altcoin beta to Bitcoin: BTC, ETH, SOL and DOGE hourly returns](<https://whycoinmoves.com/ja/research/hourly-returns-and-bitcoin-beta.md>)
- [Will Bitcoin go back up? Every crash since 2011 and its recovery time](<https://whycoinmoves.com/ja/research/bitcoin-crash-recovery-time.md>)
- [Perpetual funding rates and annualized yield: a 2025 comparison](<https://whycoinmoves.com/ja/research/funding-rates-versus-investor-returns.md>)
- [Bitcoin halving and bull markets: evidence from four halvings](<https://whycoinmoves.com/ja/research/bitcoin-halving-and-market-cycles.md>)

根拠レベルは情報源のカバー範囲を示し、報道が真である確率ではありません。価格変動とそのタイミングだけでは原因を証明できません。分足サンプルは観測区間を示し、アラート閾値は経験的な基準です。解説はモデル支援で作成し、引用と数値を確認しています。情報源タイトルは原語のまま表示し、記事全文は転載しません。 [Methods and limitations](<https://whycoinmoves.com/ja/methodology>)