Ethereum confirms Glamsterdam dates, but warns 'fake' builders could stall the chain
What CoinDesk reports, why it matters and what remains unconfirmed.

The story in one view
- Reported by
- CoinDesk
- Coverage lens
- Networks and technology
- Published
- Evidence status
- Cross-source reports linked
What CoinDesk reports
Free test ether lets fake builders outbid rivals and withhold transaction payloads, while client teams get half the usual review time before Sepolia.
The immediate significance
The report identifies a technology development, but the available information does not provide enough matched evidence for a more specific impact judgment. That assessment remains open.
Decrypt and CoinDesk have also published a related report, providing another attributed account to compare without treating repetition as proof.
What remains unknown
- The report does not establish whether the described technology is proposed, in testing or live in production.
- No matched primary document independently supporting the central claim is linked to this page.
The named assets, right now
Spot quotes from Kraken, checked .
How the story developed
Decrypt and CoinDesk are reporting related developments. Reports are shown in publication order; separate coverage is not independent confirmation.
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Free test ether lets fake builders outbid rivals and withhold transaction payloads, while client teams get half the usual review time before Sepolia.
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