{
  "id": 559809,
  "title": "Ravencoin could roll back four days of transactions after critical block flaw",
  "url": "https://urgent.news/2026/08/11/ravencoin-could-roll-back-four-days-of-transactions-after-critical",
  "topic": "finance",
  "section": "Finance & Markets",
  "published": "2026-08-11T11:24:56.000Z",
  "source": {
    "name": "CoinDesk",
    "slug": "coindesk",
    "url": "https://www.coindesk.com/tech/2026/08/11/ravencoin-could-roll-back-four-days-of-transactions-after-critical-block-flaw"
  },
  "original_language": "en",
  "account": "A critical flaw in Ravencoin's software could cause the blockchain to erase up to four days of transactions, according to the project's announcement on Tuesday. In a blockchain, transactions are written in batches known as blocks, with miners adding new blocks to the growing record. The network ultimately treats the version with the most computing power behind it as the authentic one. A weakness enabled bad blocks to infiltrate the record on Friday, and two mining pools, 2Miners and RavenMiner, are rebuilding the record from the block before the exploit. If enough miners adhere to their version, everything written since the flaw would be replaced. Users may find payments that appeared complete over the weekend vanish from Ravencoin's accepted history. Ravencoin's value dropped 17% in 24 hours to $0.0029, cutting its market value to about $48 million. The token has declined 77% over the past year. The first bad block appeared at height 4,487,776 on Aug. 7 at 15:44 UTC. Multiple versions of the bad block emerged, and the pools are building their version from block 4,487,775. Patching the software doesn't undo the already written transactions. The two pools declined the project's request to restart from a more recent point, citing security concerns. The project asked exchanges and other services not to assume deposits or withdrawals in this situation will return on their own and advised them to suspend operations until the network settles on a single version. Exchanges, including Bitvavo and Upbit, have started responding to the issue. The situation gives the two pools significant control over which version of the past few days the rest of the network accepts. Ravencoin has faced similar issues before, including a flaw in 2020 that minted roughly 31 million extra tokens before it was fixed.",
  "summary": "Two mining pools controlling most of Ravencoin’s hashpower are building a replacement chain from before Friday’s first invalid block, putting deposits, withdrawals and payments made since then at risk of reversal.",
  "key_points": [
    "Critical flaw in Ravencoin software could erase up to four days of transactions",
    "Two mining pools, 2Miners and RavenMiner, rebuilding blockchain from block before exploit",
    "Ravencoin's value dropped 17% in 24 hours to $0.0029"
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}