Tootfinder

Sources: Atticus, a stealthy stablecoin banking startup, is in advanced talks to raise new funding led by Palmer Luckey at a valuation of between $1.5B and $2B (Axios)
https://www.axios.com/pro/all-deals/2025/05/30/andurils-palmer-…

Scoop: Anduril's Palmer Luckey to invest in stealthy stablecoin startup
The new funding would value Atticus at between $1.5 billion and $2 billion.

Today's solar activity - #Sun

Study of thorium in hypersonic gas jets: Ionization potentials of Th and Th$^ $
A. Claessens, F. Ivandikov, M. Brasseur, A. Dragoun, Ch. E. D\"ullmann, R. Ferrer, Yu. Kudryavtsev, P. Palmeri, P. Quinet, S. Raeder, D. Renisch, P. Van den Bergh, P. Van Duppen
https://arxiv.org/abs/2507.21946 https://arxiv.org/pdf/2507.21946 https://arxiv.org/html/2507.21946
arXiv:2507.21946v1 Announce Type: new
Abstract: Laser ionization spectroscopy was performed on both neutral and singly ionized $^{232}$Th with the aim of identifying the nuclear-clock isomer in the singly charged ionic state of $^{229}$Th. A search for an efficient laser ionization scheme of $^{232}$Th$^ $ was conducted in an argon-filled gas cell. This revealed a congested spectrum due to collisional quenching effects and the presence of several auto-ionizing states, one of which has a laser ionization efficiency of at least $1.2 \%$. Using a threshold approach, the second ionization potential was determined to be $12.300(9)\,$eV. The subsequent study on atomic $^{232}$Th validated the threshold approach. Conducting spectroscopy in a hypersonic gas jet, suppressed the gas-collision-induced quenching, revealing a Rydberg series that converges to the first ionization potential, determined to be $6.306879(14)\,$eV. The gas jet also cools down the thorium, allowing for high-resolution laser spectroscopy with a resolution of $240(30)\,$MHz. Using the Multiconfigurational Dirac-Hartree-Fock (MCDHF) method, the ionization potentials were computed, showing a relative difference of 0.06\% and 0.19\% between theory and our experimental values for the ionization potentials of Th and Th$^ $ respectively. Further calculations using a pseudo-relativistic Hartree-Fock method reveal strong mixing in the used intermediate state at $26113.27\,$cm$^{-1}$ of Th. A dedicated fast-extraction gas cell with $^{233}$U recoil sources was used to study $^{229}$Th$^ $ but no photo-ionization signal could be observed.
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G.O.P. Bill Adds Surprise Tax That Could Cripple Wind and Solar Power (Brad Plumer/New York Times)
https://www.nytimes.com/2025/06/29/climate/gop-bill-adds-surprise-tax-that-could-cripple-wind-and-solar-power.html
http://www.memeorandum.com/250629/p48#a250629p48

"Hard to believe, but it has been already almost 20 years since the days when Apple plastered the halls of its Worldwide Developer Conference (WWDC) with huge posters proclaiming “Redmond, start your photocopiers” or “Mac OS X Leopard: Hasta la vista, Vista”. The decade of the 2000s, coinciding with Steve Ballmer’s tenure as CEO, is widely perceived as a lost one for Microsoft, and one of the most visible signs of that decline was, without a doubt, the “Longhorn” saga."

Dave Plummer
Hard to believe as it is, it has been already almost 20 years since the days when Apple plastered the halls of its Worldwide Developer Conference (WWDC) with huge posters proclaiming "Redmond, start your photocopiers" or "Mac OS X Leopard: Hasta la vista, Vista". The decade of the 2000s, coinciding with Steve Ballmer’s tenure as CEO, is widely perceived as a lost one for Microsoft, and one of the most visible signs of that decline was, without a doubt, the "Longhorn" saga.

AgentMesh: A Cooperative Multi-Agent Generative AI Framework for Software Development Automation
Sourena Khanzadeh
https://arxiv.org/abs/2507.19902 https://

AgentMesh: A Cooperative Multi-Agent Generative AI Framework for Software Development Automation
Software development is a complex, multi-phase process traditionally requiring collaboration among individuals with diverse expertise. We propose AgentMesh, a Python-based framework that uses multiple cooperating LLM-powered agents to automate software development tasks. In AgentMesh, specialized agents - a Planner, Coder, Debugger, and Reviewer - work in concert to transform a high-level requirement into fully realized code. The Planner agent first decomposes user requests into concrete subtas…

A note on the sizes of bipartite 1-planar graphs
Guiping Wang
https://arxiv.org/abs/2507.19762 https://arxiv.org/pdf/2507.19762

A note on the sizes of bipartite 1-planar graphs
A graph is 1-planar if it admits a drawing in the plane such that each edge is crossed at most once. Let G be a bipartite 1-planar graph with partite sets X and Y. A 1-disk OX drawing of G is a 1-planar drawing such that all vertices of X lie on the boundary of O and all vertices of Y and all edges of G locate in the interior of O, where O is a disk on the plane. The concept was first proposed by Huang, Ouyang and Dong when they solved a conjecture about the edge density of bipartite 1-planar g…

SoK: Root Cause of \$1 Billion Loss in Smart Contract Real-World Attacks via a Systematic Literature Review of Vulnerabilities
Hadis Rezaei, Mojtaba Eshghie, Karl Anderesson, Francesco Palmieri
https://arxiv.org/abs/2507.20175

SoK: Root Cause of \$1 Billion Loss in Smart Contract Real-World Attacks via a Systematic Literature Review of Vulnerabilities
The Ethereum ecosystem, despite its maturity, continues to witness catastrophic attacks, with billions of dollars in assets lost annually. In response, a significant body of research has focused on identifying and mitigating smart contract vulnerabilities. However, these efforts predominantly focus on implementation-level bugs, leaving a critical gap between academic understanding of vulnerabilities and the root causes of real-world high-impact financial losses. We employ a two-pronged methodol…

Criteria for parabolicity and hyperbolicity of conductive Riemannian manifolds
Vicent Gimeno i Garcia, Ana Hurtado, Steen Markvorsen, Vicente Palmer
https://arxiv.org/abs/2507.19892

Criteria for parabolicity and hyperbolicity of conductive Riemannian manifolds
Motivated by the physics of anisotropic conductive materials we consider a linear elliptic operator $Δ_{\mathcal{W}}$ of divergence type on a Riemannian manifold $(M^{n}, g)$. The operator is determined by the metric $g$ and by a given conductivity, which is modeled by a smooth self adjoint tensor field $\mathcal{W}$ of type $(1,1)$. We establish new conditions for a conductive manifold $(M, g, \mathcal{W})$ to be $\mathcal{W}$-parabolic or $\mathcal{W}$-hyperbolic. Here, by definition, a $\ma…

Decision Transformer-Based Drone Trajectory Planning with Dynamic Safety-Efficiency Trade-Offs
Chang-Hun Ji, SiWoon Song, Youn-Hee Han, SungTae Moon
https://arxiv.org/abs/2507.21506

Decision Transformer-Based Drone Trajectory Planning with Dynamic Safety-Efficiency Trade-Offs
A drone trajectory planner should be able to dynamically adjust the safety-efficiency trade-off according to varying mission requirements in unknown environments. Although traditional polynomial-based planners offer computational efficiency and smooth trajectory generation, they require expert knowledge to tune multiple parameters to adjust this trade-off. Moreover, even with careful tuning, the resulting adjustment may fail to achieve the desired trade-off. Similarly, although reinforcement le…