谛听Diting Lab

Research Forums · Fri, Oct 2, 2026

Research discussions on ethresear.ch and Delving Bitcoin.

Delving Bitcoin

Is the pre-finality double-spend race intrinsic to single-owner coins?

In briefIs the pre-finality double-spend race inherent to single-owner coins?

SummaryThe author examines a race condition in which a payer broadcasts a spend of their own coin just before paying a payee, making the payment a double-spend. They want to avoid 2-of-2 channels and punitive Lightning-style models, and note that eltoo requires the unactivated BIP-118. The post asks whether this race is intrinsic to single-owner coins and whether anyone is working on a similar solution.

Delving Bitcoin

Disclosure: DoS vulnerabilities fixed in Eclair v0.14.1

In briefDisclosure: DoS Flaws in Eclair v0.14.1 Fixed

SummaryTwo denial-of-service vulnerabilities in Eclair's channel opening flow were fixed in v0.14.1, and users are advised to upgrade. The first is an open_channel race condition that lets an attacker leak memory until the node crashes from out-of-memory or garbage-collection thrashing. The second is an unfunded channel flood that bypasses the pending-channel rate limiter, exhausting memory over a single connection at no on-chain cost.