arXiv x402 Explainers

A concise, abstract-grounded briefing on a paper that introduces HalfLife to estimate whether adversarial content from public discussion interfaces enters web-crawl based LM training data.

Researchers use AI-assisted Lean formalization to machine-check foundations and resource estimates for quantum attacks on RSA-2048 and P-256.

A QSCOUT experiment benchmarks trigonometric continuous-variable cosine gates in trapped-ion motional modes, testing a proposed primitive for bosonic quantum simulation.

Hindcast replays resolved Polymarket markets with a fixed pre-event Reddit archive, testing whether LLMs can make forecasts from past information rather than retrieve outcomes.

The new bioacoustic foundation model uses recording context—such as time and location—as auxiliary training signals for species identification.

M^4World generates future surround-view video and synchronized LiDAR, with controls for object layout and appearance plus minute-long rollouts.

A metro-fibre q-ROADM dynamically distributes entangled photon pairs to six users and switches among mesh, sliced, and SIAT/flooding modes.

RoboTTT uses test-time training and fast-weight recurrence to scale robot policy context to 8K timesteps without reported growth in inference latency.

The complete engineering guide to autonomous HTTP payments in USDC on Base, with runnable TypeScript for both bot and server sides.

A two-phase Terminal-Bench 2.0 evaluation tests whether agent-optimization gains survive new tasks and a second optimization round.

Katie Everett’s paper argues that residual skips, normalization placement, and feedforward expansion help determine how much gradient rank survives as Transformer depth increases.

PhysClaw-0 stores human language corrections as reusable robot adjustments, reducing repeated oversight during real-world manipulation data collection.

Bayesian-optimized silicon nitride “sail” membranes cut resonant frequency by about 10× while preserving Q–mass product, enabling a kHz optomechanical accelerometer with 40 ng₀/√Hz thermal noise.