Tootfinder

Poseidon, an AI-focused decentralized data layer built on the Story protocol, raised a $15M seed led by a16z (Daniel Kuhn/The Block)
https://www.theblock.co/post/363702/a16z-leads-15-million-seed-roun…

ATRO: A Fast Solver-Free Algorithm for Topology and Routing Optimization of Reconfigurable Datacenter Networks
Yingming Mao, Qiaozhu Zhai, Zhen Yao, Xia Zhu, Ximeng Liu, Xinchi Han
https://arxiv.org/abs/2507.13717

ATRO: A Fast Solver-Free Algorithm for Topology and Routing Optimization of Reconfigurable Datacenter Networks
The growing scale and complexity of reconfigurable data center networks (DCNs) demand more scalable and efficient algorithms for computing logical topologies and routing. Reconfigurable DCNs typically operate in two modes: one-hop configurations that require frequent topology optimization (TO), and multi-hop scenarios that involve joint topology and routing optimization (TRO). In both cases, the combinatorial nature of topology decisions makes it difficult for existing methods to balance soluti…

Range of topological fluctuations in the three-flavor linear sigma model
G. Fejos, A. Patkos
https://arxiv.org/abs/2507.13581 https://

Range of topological fluctuations in the three-flavor linear sigma model
The topological charge density two-point function is computed in a three-flavor effective linear meson model, including contributions from topological sectors with arbitrary charge. A corresponding composite field is introduced via a Hubbard-Stratonovich transformation. In the $η$-$η$' sector, the model yields very accurate spectroscopy with negligible mixing with the composite field. The resulting topological susceptibility allows for the extraction of a surprisingly large absolute scale for…

I hate Windows: "Why does the Windows Portable Executable (PE) format have separate tables for import names and import addresses?, part 2".
https://devblogs.microsoft.com/oldnewthing/20231130-00/?p=109084

Why does the Windows Portable Executable (PE) format have separate tables for import names and import addresses?, part 2 - The Old New Thing
Keeping read-only data separate from read-write data.

Continuity of Functions on Bare Representation of Graphs under Star Topology
Rodolfo E. Maza
https://arxiv.org/abs/2507.13968 https://

Continuity of Functions on Bare Representation of Graphs under Star Topology
This paper introduces a novel topology, referred to as the star topology, on finite graphs. By treating vertices and edges as points in a unified space, we explore continuous maps between Bare representations of a graph and their properties. The key distinction lies in the fact that while every graph homomorphism induces a continuous map, the converse is not generally true due to potential loss of adjacency information.

weee… I can finally stop serving WebP images! 🥳
Just in time when I have to start worrying about JPEG XL. 🤪
https://caniuse.com/avif

Simphony: A full tight-binding package for lattice vibrations and topological phonon analysis
Francesc Ballester, Ion Errea, Maia G. Vergniory
https://arxiv.org/abs/2507.15413

Simphony: A full tight-binding package for lattice vibrations and topological phonon analysis
Simphony is an open-source software package designed for the topological analysis of lattice vibrations based on Wannier tight-binding models. Its primary function is to classify the topology of novel materials by computing bulk and slab phonon band structures, extracting phonon surface spectra, and providing analysis tools such as Wilson loop calculations and Weyl node detection. The workflow is analogous to that of established electronic topology codes like Wannier90 and WannierTools. It also…

internet_top_pop: Internet topology (PoP level) (1969-2012)
Assorted snapshots of internet graph at the Point of Presence (PoP) level (which lies between the IP and AS levels), collected from around the world and at various times. The earliest snapshots are for ARPANET (1969-1972), with a few more from pre-2000. Most are from 2006 onward. Metadata include link type or speed, longitudes, and latitudes of nodes, URL, and date of record.
This network has 56 nodes and 75 edges.

Generating and Weaving Topological Event Wavepackets in Photonic Spacetime Crystals with Fully Energy-Momentum Gapped
Liang Zhang, Zirui Zhao, Qiaofei Pan, Chenhao Pan, Qingqing Cheng, Yiming Pan
https://arxiv.org/abs/2507.15309

Generating and Weaving Topological Event Wavepackets in Photonic Spacetime Crystals with Fully Energy-Momentum Gapped
We propose a novel type of topological excitation topological event wavepackets (TEWs) emerging in photonic spacetime crystals (STCs) with spacetime modulated dielectric constants. These TEWs exhibit strong spatiotemporal localization and are topologically protected by a fully opened energy momentum (ωk) gap, within which conventional steady states are absent. We further demonstrate that TEWs are spectrally confined within the ωk-gap, providing a combined measurement for probing the emergence…

Configurational-force-driven adaptive refinement and coarsening in topology optimization
Gabriel Stankiewicz, Chaitanya Dev, Paul Steinmann
https://arxiv.org/abs/2507.15570

Configurational-force-driven adaptive refinement and coarsening in topology optimization
The iterative nature of topology optimization, especially in combination with nonlinear state problems, often requires the solution of thousands of linear equation systems. Furthermore, due to the pixelated design representation, the use of a fine mesh is essential to obtain geometrically well-defined structures and to accurately compute response quantities such as the von Mises stress. Therefore, the computational cost of solving a fine-mesh topology optimization problem quickly adds up. To ad…