Tootfinder

AI coding assistant startup Augment emerges from stealth with a $227M Series B at a $977M post-money valuation, following a $25M Series A led by Sutter Hill (Kyle Wiggers/TechCrunch)
https://techcrunch.com/2024/04/24/eric

Exclusive: Eric Schmidt-backed Augment, a GitHub Copilot rival, launches out of stealth with $252M
Augment, a startup developing an AI-powered platform similar to GitHub's Copilot, has launched out of stealth valued at nearly $1 billion.

Paris-based FlexAI, which is developing an on-demand cloud service for AI training, emerges from stealth with a $30M in seed funding (Paul Sawers/TechCrunch)
https://techcrunch.com/2024/04/23/french-startup-flexai-exits-…

French startup FlexAI exits stealth with $30M to ease access to AI compute | TechCrunch
French startup FlexAI has raised a hefty seed investment to "rearchitect compute infrastructure" for AI developers.

Foundry, a cloud computing service provider focused on AI workloads, comes out of stealth after raising $80M across a seed and a Series A at a $350M valuation (Allie Garfinkle/Fortune)
https://fortune.com/2024/03/21/foundry-stealth-launch-350-million-v…

Exclusive: Foundry comes out of stealth with a $350 million valuation
The company today launched out of stealth, having raised $80 million in total seed and Series A funding in a round co-led Lightspeed Venture Partners and Sequoia Capital.

Borderless AI, whose AI agent automates HR tasks like onboarding and payments, emerges from stealth with a $27M seed led by Susquehanna and Aglaé Ventures (Jena McGregor/Forbes)
https://www.forbes.com/sites/jenamcgregor/

A Stealth AI ‘Agent’ To Speed Global Hiring Launches With $27 Million Fundraise
A new startup wants to disrupt the crowded EOR market, launching with $27 million in seed funding and an "AI agent" that automates certain global hiring tasks.

Evidence and concerns about a latent, embryonic phase tectonic evolution and the existence of the young subsurface ocean on Mimas
Balazs Bradak, Motoharu Okumi
https://arxiv.org/abs/2404.14084

Evidence and concerns about a latent, embryonic phase tectonic evolution and the existence of the young subsurface ocean on Mimas
New models challenge the long-standing conclusion about Mimas, an icy satellite of Saturn, being an inactive snowball, suggesting the existence of a young stealth ocean. Unfortunately, no observable evidence has been found yet implying tectonic activity and the theoretical subsurface ocean. Here, we present the first structural geological map of the icy satellite, with the signs of various tectonic features, along with a simple crosscutting chronology of lineaments formation. In accordance with…

Xaira Therapeutics, which aims to use AI models to find new drugs to treat diseases, emerged from stealth with $1B in commitments from Sequoia and others (Sarah McBride/Bloomberg)
https://www.bloomberg.com/news/articles/20

Ex-Stanford President Tessier-Lavigne’s Drug Startup Xaira Pulls In $1 Billion
Marc Tessier-Lavigne, the former president of Stanford University who resigned last year after questions arose about his scientific research, has a new job as chief executive officer of a drug development startup.

Nominal, which offers tools for data analysis, testing, and more to startups building advanced hardware like drones, emerges from stealth with $27.5M in funding (Lizette Chapman/Bloomberg)
https://www.bloomberg.com/news/articles/20

Lux, General Catalyst Back Startup Nominal to Aid Defense Tech Boom
Lux Capital, General Catalyst and Founders Fund have been backing a startup that wants to accelerate the creation of hardware used in space, energy and other sectors critical to national security.

Social 💧⁠Chat⁠💧

Aria

com.poppingmoon.aria
https://github.com/poppingmoon/aria
nl.privacydragon.bookwyrm
https://github.com/PrivacyDragon/Bookwyrm_Android
org.briarproject.briar.android
https://briarproject.org/fdroid/repo?appId=org.briarproject.briar.android
org.futo.circles
https://app.futo.org/fdroid/repo?appId=org.futo.circles
chat.delta.lite
https://github.com/adbenitez/deltalab-android
eu.toldi.infinityforlemmy
https://codeberg.org/Bazsalanszky/Eternity
fr.gouv.etalab.mastodon
https://fdroid.fedilab.app/repo?appId=fr.gouv.etalab.mastodon
chat.fluffy.fluffychat
https://github.com/krille-chan/fluffychat
su.xash.husky
https://github.com/captainepoch/husky
cx.ring
https://f-droid.org/packages/cx.ring
org.jitsi.meet
https://f-droid.org/packages/org.jitsi.meet
moe.craftplacer.kaiteki
https://github.com/kaiteki-fedi/kaiteki
org.joinmastodon.android.sk
https://github.com/sk22/megalodon
org.joinmastodon.android.moshinda
https://github.com/lucasggamerm/moshidon
com.nostros
https://github.com/KoalaSat/nostros
com.github.diegoberaldin.raccoonforlemmy.android
https://github.com/diegoberaldin/RaccoonForLemmy
de.spiritcroc.riotx
https://s2.spiritcroc.de/fdroid/repo?appId=de.spiritcroc.riotx
org.thoughtcrime.securesms
https://thecapslock.gitlab.io/fdroid-patched-apps/fdroid/repo?appId=org.thoughtcrime.securesms
chat.simplex.app
https://github.com/simplex-chat/simplex-chat
com.cosmos.unreddit
https://f-droid.org/packages/com.cosmos.unreddit
com.zoffcc.applications.trifa
https://github.com/zoff99/ToxAndroidRefImpl
app.vger.voyager
https://github.com/aeharding/voyager
com.github.andreyasadchy.xtra
https://f-droid.org/packages/com.github.andreyasadchy.xtra
net.accelf.yuito
https://github.com/accelforce/yuito

Nominal, which offers tools for data analysis, testing, and more to startups building advanced hardware like drones, emerges from stealth with $27.5M in funding (Lizette Chapman/Bloomberg)
https://www.bloomberg.com/news/articles/20

Lux, General Catalyst Back Startup Nominal to Aid Defense Tech Boom
Lux Capital, General Catalyst and Founders Fund have been backing a startup that wants to accelerate the creation of hardware used in space, energy and other sectors critical to national security.

2 weeks into FA: Are the Cowboys doing a stealth rebuild? https://insidethestar.com/2-weeks-into-fa-are-the-cowboys-doing-a-stealth-rebuild/

2 weeks into FA: Are the Cowboys doing a stealth rebuild? ⋆ Inside The Star
Stay updated on the Dallas Cowboys' 2024 free agency season. Discover which players the Cowboys have re-signed, signed from other teams, and released. And is the team already rebuilding?

⚗️ General Galactic emerges from stealth to make methane from carbon dioxide
#energy

Exclusive: General Galactic emerges from stealth to make methane from carbon dioxide | TechCrunch
The stealthy new startup hopes a fully integrated approach, from direct air capture to electrolysis and methane generation, will let it drive prices down for so-called e-fuels.

This https://arxiv.org/abs/2312.12131 has been replaced.
link: https://scholar.google.com/scholar?q=a

Elliptic Curve Pairing Stealth Address Protocols
The protection of transactions privacy is extremely important for the user. With stealth address protocols (SAP), users can receive assets on stealth addresses that they do not link to their stealth meta-addresses. SAP can be generated using various cryptographic approaches. DKSAP uses elliptic curve multiplication and hashing of the resulting shared secret. Another approach is to use a bilinear mapping. The paper presents two SA protocols that use elliptic curve pairing as a cryptographic solu…

Not a recent blog post, but still very relevant. I regret to announce it really does seem to be going as planned.
https://www.ineteconomics.org/perspectives/blog/meet-the-economist-behind-the-one-percents-stea…

Meet the Hidden Architect Behind America's Racist Economics
Nobel laureate James Buchanan is the intellectual linchpin of the Koch-funded attack on democratic institutions, argues Duke historian Nancy MacLean

Tel Aviv-based Sweet Security, which offers cloud runtime security tools, raised a $33M Series A, after emerging from stealth with a $12M seed in August 2023 (Kevin Townsend/SecurityWeek)
https://www.securityweek.com/cloud-securit

Cloud Security Firm Sweet Security Raises $33 Million, 6 Months After Emerging From Stealth
Cloud security firm Sweet Security announced a $33 million funding round, six months after emerging from stealth with $12 million seed funding

2 weeks into FA: Are the Cowboys doing a stealth rebuild? https://www.yardbarker.com/nfl/articles/2_weeks_into_fa_are_the_cowboys_doing_a_stealth_rebuild/s1_17100_40154512

2 weeks into FA: Are the Cowboys doing a stealth rebuild?
We're now two weeks into the 2024 free agency season and the scoreboard for Dallas looks frighteningly like the halftime score of the Cowboys' last game of 2023. Cowboys Free Agents Resigned DB Jourdan Lewis RB Rico Dowdle LS Trent Sieg DB C.J. Goodwin Free Agents Signed From Other Teams LB Eric Kendricks (Chargers) Players Released LB Leighton Vander Esch WR Michael Gallup Free Agents Signed With Other Teams DT Johnathan Hankins (Seahawks) OT Tyron Smith (Jets) DB Noah Igbinoghene (Commanders)…

Fay, which connects registered dietitians with insurance providers and patients, emerges from stealth with $25M in funding from General Catalyst and Forerunner (Marina Temkin/TechCrunch)
https://techcrunch.com/2024/05/15/dieti…

Dietitian startup Fay has been booming from Ozempic patients and emerges from stealth with $25M from General Catalyst, Forerunner | TechCrunch
Three-way marketplace Fay matches dietitians with insurances and patients has seen increased interest from people taking Ozempic and other GLP-1s.

⚗️ General Galactic emerges from stealth to make methane from carbon dioxide
#energy

Exclusive: General Galactic emerges from stealth to make methane from carbon dioxide | TechCrunch
The stealthy new startup hopes a fully integrated approach, from direct air capture to electrolysis and methane generation, will let it drive prices down for so-called e-fuels.

If you turn the King Trump Bible upside down and read it in the mirror, the Sermon of the Mount becomes a description of the stealth capabilities of US submarines, the Ten Commandments are the plan for the invasion of Mongolia by sea, and Revelation gives a recipe to make a lethal binary chemical weapon from coke and fried chicken nuggets.

AI chip startup Taalas emerges from stealth, raised $50M across two rounds led by Pierre Lamond and Quiet Capita, and plans to unveil its LLM chip in Q3 2024 (Charlotte Trueman/DatacenterDynamics)
https://www.datacenterdynamics.com/en/news

AI startup Taalas comes out of stealth, raises $50m for LLM chips
Launched by Tenstorrent founder Ljubisa Bajic

Attack Of The Things
Take on Galactoil, a comically dysfunctional intergalactic energy corporation, and its larger-than-life employees in a tactical-stealth game that fuses satisfying strategic gameplay and dark comedy in a quirky single-player story.
https://thealcat.itch.io/attack-of-the

Ema, a generative AI startup with the goal of building a "universal AI employee" to automate mundane tasks, emerges from stealth with $25M in funding (Ingrid Lunden/TechCrunch)
https://techcrunch.com/2024/03/05/ema-a-universal…

Ema, a 'Universal AI employee', emerges from stealth with $25M | TechCrunch
Generative AI well and truly has a grip on public technology discourse these days. A new startup called Ema out of San Francisco thinks it's a lot more

Constraining a disformal Schwarzschild black hole in DHOST theories with the orbit of the S2 star
Zelin Zhang, Songbai Chen, Jiliang Jing
https://arxiv.org/abs/2404.05957

Constraining a disformal Schwarzschild black hole in DHOST theories with the orbit of the S2 star
With the observed data of the S2 orbit around the black hole Sgr A$^*$ and the Markov Chain Monte Carlo method, we make a constraint on parameters of a disformal Schwarzschild black hole in quadratic degenerate higher-order scalartensor (DHOST) theories. This black hole belongs to a class of non-stealth solutions and owns an extra disformal parameter described the deviation from general relativity. Our results show that the best fit value of the disformal parameter is positive. However, in the …

Ema, a generative AI startup with the goal of building a "universal AI employee" to automate mundane tasks, emerges from stealth with $25M in funding (Ingrid Lunden/TechCrunch)
https://techcrunch.com/2024/03/05/ema-a-universal…

Ema, a 'Universal AI employee', emerges from stealth with $25M | TechCrunch
Generative AI well and truly has a grip on public technology discourse these days. A new startup called Ema out of San Francisco thinks it's a lot more

This https://arxiv.org/abs/2401.03067 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Social Echo Chambers in Quantum Field Theory: Exploring Faddeev-Popov Ghosts Phenomena, Loop Diagrams, and Cut-off Energy Theory
This paper presents an interdisciplinary approach to analyze the emergence and impact of filter bubbles in social phenomena, especially in both digital and offline environments, by applying the concepts of quantum field theory. Filter bubbles tend to occur in digital and offline environments, targeting digital natives with extremely low media literacy and information immunity. In addition, in the aftermath of stealth marketing, fake news, "inspirational marketing," and other forms of stealth ma…

Design of Tunable Perfect Absorbers in the Mid-IR Spectrum Using Graphene-Based Multilayer Structures: Emerging Applications in Atmospheric Window Matching
Masoumeh Nazari, Yaser Mike Banad, Sarah S. Sharif
https://arxiv.org/abs/2404.18425 https://arxiv.org/pdf/2404.18425
arXiv:2404.18425v1 Announce Type: new
Abstract: This paper introduces tunable and switchable Perfect Absorbers (PAs) operating within the mid-infrared spectrum, specifically targeting the 3 to 5 um range at 0.25 um intervals. This spectrum is engineered for minimal atmospheric absorption and unique transmission characteristics. Our approach uses graphene-based nanophotonic aperiodic multilayer structures, optimized through micro-genetic algorithms within an inverse design framework. This combination broadens the design space, enabling highly accurate absorption control. Using the Transfer-Matrix-Method for simulations, we tailor absorption characteristics while keeping the structures under 2 um thick. Our results demonstrate PA tunability and switchability by adjusting graphene layers' chemical potentials. For instance, a 4 um peak can shift to 4.22 um by changing the graphene potential from 0 eV to 1 eV, without reducing efficiency. Our research also reveals PA adaptability to incident angles, maintaining 90% absorption up to 52 degrees, demonstrating versatility for applications like thermal photovoltaics, sensors, and stealth technology. This research deepens our understanding of nanophotonic materials and advances optical devices for the mid-IR range.

🚀 Evari turns to rocket science to solve problems with heat pumps
#technology

Evari turns to rocket science to solve problems with heat pumps | TechCrunch
The startup emerged from stealth with a goal of extending the range of EVs while also eliminating fossil fuels from home heating.

This https://arxiv.org/abs/2401.00091 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Disforming scalar-tensor cosmology
Disformal transformations of Friedmann-Lemaître-Robertson-Walker and Bianchi geometries are analyzed in the context of scalar-tensor gravity. Novel aspects discussed explicitly are the $3+1$ splitting, the effective fluid equivalent of the gravitational scalar, Bianchi models, stealth solutions, and de Sitter solutions with non-constant scalar field (which are signatures of scalar-tensor gravity). Both pure disformal transformations and more general ones are discussed, including those containi…

Flexible terahertz metasurface absorbers empowered by bound states in the continuum
Guizhen Xu, Zhanqiang Xue, Junxing Fan, Dan Lu, Hongyang Xing, Perry Ping Shum, Longqing Cong
https://arxiv.org/abs/2405.03600

Flexible terahertz metasurface absorbers empowered by bound states in the continuum
Terahertz absorbers are crucial to the cutting-edge techniques in the next-generation wireless communications, imaging, sensing, and radar stealth, as they fundamentally determine the performance of detectors and cloaking capabilities. It has long been a pressing task to find absorbers with customizable performance that can adapt to various environments with low cost and great flexibility. Here, we demonstrate perfect absorption empowered by bound states in the continuum (BICs) allowing for the…

This https://arxiv.org/abs/2401.00091 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Disforming scalar-tensor cosmology
Disformal transformations of Friedmann-Lemaître-Robertson-Walker and Bianchi geometries are analyzed in the context of scalar-tensor gravity. Novel aspects discussed explicitly are the $3+1$ splitting, the effective fluid equivalent of the gravitational scalar, Bianchi models, stealth solutions, and de Sitter solutions with non-constant scalar field (which are signatures of scalar-tensor gravity). Both pure disformal transformations and more general ones are discussed, including those containi…

Meta sues ex-VP Dipinder Singh Khurana for allegedly stealing documents related to employee pay and private contracts before leaving for a stealth AI startup (Kurt Wagner/Bloomberg)
https://www.bloomberg.com/news/articles/20

Meta Sues Ex-Vice President T.S. Khurana Over Alleged Stolen Documents
Meta Platforms Inc. sued one of its former vice presidents for what it called a “stunning” betrayal in his defection to a “stealth” AI cloud computing startup.

TREC: APT Tactic / Technique Recognition via Few-Shot Provenance Subgraph Learning
Mingqi Lv, HongZhe Gao, Xuebo Qiu, Tieming Chen, Tiantian Zhu
https://arxiv.org/abs/2402.15147 <…

TREC: APT Tactic / Technique Recognition via Few-Shot Provenance Subgraph Learning
APT (Advanced Persistent Threat) with the characteristics of persistence, stealth, and diversity is one of the greatest threats against cyber-infrastructure. As a countermeasure, existing studies leverage provenance graphs to capture the complex relations between system entities in a host for effective APT detection. In addition to detecting single attack events as most existing work does, understanding the tactics / techniques (e.g., Kill-Chain, ATT&CK) applied to organize and accomplish the A…

This https://arxiv.org/abs/2402.07362 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hep…

Exploring Composite Dark Matter with an SU(4) gauge theory with 1 fermion flavor
Several SU(N) gauge theories have been explored as candidates for producing stable dark matter particles that can explain their relative abundance, while also evading current constraints from direct, indirect and collider searches. In this talk, I will present the confinement and spectral properties of a new model we name "Hyper Stealth Dark Matter", which involves an SU(4) gauge theory with 1 quark flavor. The lightest baryon in this theory can be a potential dark matter candidate as it is pro…

Mike McCarthy, Mike Zimmer are dead men coaching https://www.yardbarker.com/nfl/articles/mike_mccarthy_mike_zimmer_are_dead_men_coaching/s1_17100_40167056

Mike McCarthy, Mike Zimmer are dead men coaching
In the last few days we've considered the possibility of a stealth rebuild in Dallas. And we've acknowledged that Jerry Jones' statements cannot be taken at face value. Today, he could say no contract extensions, no trades, and no big free agent signings are pending. Tomorrow, he could do all three. As a Cowboys fan, all you can do is hang on for dear life. That, and wonder where the crazy train is going to veer off to next. It isn't fair to the fans. Nor is it fair to the players. Especially D…

Mike McCarthy, Mike Zimmer are dead men coaching https://insidethestar.com/mike-mccarthy-mike-zimmer-are-dead-men-coaching/

Mike McCarthy, Mike Zimmer are dead men coaching ⋆ Inside The Star
Mar 28, 2024 -- In the last few days we’ve considered the possibility of a stealth rebuild in Dallas. And we’ve acknowledged that Jerry Jones’ statements cannot be taken

This https://arxiv.org/abs/2104.10561 has been replaced.
link: https://scholar.google.com/scholar?q=a

Turning Federated Learning Systems Into Covert Channels
Federated learning (FL) goes beyond traditional, centralized machine learning by distributing model training among a large collection of edge clients. These clients cooperatively train a global, e.g., cloud-hosted, model without disclosing their local, private training data. The global model is then shared among all the participants which use it for local predictions. In this paper, we put forward a novel attacker model aiming at turning FL systems into covert channels to implement a stealth co…

Cybersecurity startup Zafran, which develops risk mitigation services, emerges from stealth with a $25M Series A co-led by Sequoia Capital and Cyberstarts (Meir Orbach/CTech)
https://www.calcalistech.com/ctechnews/article/hjhhpaz10

After fleeing Iran and an illustrious career in Israeli intelligence, Sanaz Yashar raises $30M for cyber start
Zafran, founded in 2022 by Yashar (CEO), Ben Seri (CTO) and Snir Havdala (CPO), develops a risk and mitigation platform to pinpoint the ‘exploitable’ threats in the organization and to mitigate their risk by mobilizing existing security controls

Nagomi Security, which has developed a proactive security and threat exposure management platform, emerges from stealth with a $23M Series A and a $7M seed (Meir Orbach/CTech)
https://www.calcalistech.com/ctechnews/article/rj2nf00uza

Nagomi Security raises $23 million Series A for proactive defense platform
The Israeli startup’s platform helps security teams prioritize the most urgent risks based on an organization's unique threat profile and provides prescriptive and actionable remediation plans to reduce threat exposure using existing tools

Nagomi Security, which has developed a proactive security and threat exposure management platform, emerges from stealth with a $23M Series A and a $7M seed (Meir Orbach/CTech)
https://www.calcalistech.com/ctechnews/article/rj2nf00uza

Nagomi Security raises $23 million Series A for proactive defense platform
The Israeli startup’s platform helps security teams prioritize the most urgent risks based on an organization's unique threat profile and provides prescriptive and actionable remediation plans to reduce threat exposure using existing tools

This https://arxiv.org/abs/2402.07362 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hep…

Exploring Composite Dark Matter with an SU(4) gauge theory with 1 fermion flavor
Several SU(N) gauge theories have been explored as candidates for producing stable dark matter particles that can explain their relative abundance, while also evading current constraints from direct, indirect and collider searches. In this talk, I will present the confinement and spectral properties of a new model we name "Hyper Stealth Dark Matter", which involves an SU(4) gauge theory with 1 quark flavor. The lightest baryon in this theory can be a potential dark matter candidate as it is pro…