XRP Ledger’s Bug Boogie: Will It Waltz or Stumble?
On Feb. 20, the XRP Ledger Foundation-those guardians of the digital realm-hollered from the rooftops that a bug had been spotted via their Bug Bounty program. Now, don’t you fret, they assured us the XRP Ledger’s as safe as a hound dog in a ham shop. But, just to be on the safe side, they’re urging validators to veto the batch amendment faster than a catfish on a hook.



![Rydberg atom arrays leverage local hole injection-induced by a combination of global microwave radiation and modulated light shifts at frequencies [latex]\omega\_{\rm MW}\pm\omega\_{\rm LS}[/latex]-to probe the many-body spectrum and access the local density of states, demonstrated by observing sideband coupling to both eigenstates in a two-atom system and a Rabi frequency that aligns with expected Bessel function [latex]J\_{1}(\kappa)[/latex] behavior.](https://arxiv.org/html/2602.17600v1/x1.png)
![This work projects the sensitivity of a proposed ferromagnet lattice magnetometer to ultralight dark matter couplings, demonstrating constraints-shown as a solid red curve-that improve upon existing limitations derived from both the literature [15,16] and single ferromagnet magnetometers [8], based on calculations utilizing a [latex]1\ \mathrm{m}[/latex] shield size and established parameter configurations.](https://arxiv.org/html/2602.17291v1/x4.png)



