Riccardo Gatti

Riccardo Gatti

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A list of all the posts and pages found on the site. For you robots out there, there is an XML version available for digesting as well.

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hashcat to hack a keepass2 kdbx

less than 1 minute read

Published: 

hashcat -a 3 --stdout -1 "abcRH&3h" ?1what_you_know?l?s?a > candidates.txt
hashcat -m 13400 -a 0 -o cracked_password.txt hash.txt candidates.txt --status --status-timer=2 --potfile-disable
  1. candidates.txt file is produced containing strings that match the given structure ?1what_you_know?l?s?a.
  2. candidates.txt file is used for a dictionary attach on the hash.txt file computed from the kdbx keepass2 file in websites like https://keepass2john.com/.
  3. Any cracked password will be saved in the cracked_password.txt file

Why isn’t everything a browser?

6 minute read

Published:

After years of fighting against the logic of web programming (a fight mostly in vain), the web is not its programming language, but its logic. The web, as we know it today, is built on a foundation of programming languages that have evolved over the years to create everything from simple static pages to complex web applications.

A non-academic scientific community

4 minute read

Published:

The majority of scientific researches and publications are produced by people who belong to the academic world (especially universities or public or private research centres) and who carry out research works on the basis of projects research approved and funded. As scientific director, I conduct research for private companies but at the end of the day the work doesn’t end because curiosity keeps asking new questions. So it seemed natural to me to start looking for other people who carried out quality research activities driven by curiosity and the desire for knowledge. I’ve found a huge amount of articles dealing with this and other similar issues:

Knowledge, locality, information

10 minute read

Published:

The universe is characterized by a multitude of connections between its parts and this property can be observed at all levels and in all sectors of knowledge. It seems that there are very few elements whose connections with the rest of reality are not known, that is, elements completely disconnected. Artists and scientists in every era have grasped new connections and better understood the already known ones. Also, it rarely happens that elements considered connected then turn out to be completely independent: the entire Western and Eastern thought (the thought of all humanity) has searched and is constantly searching for new connections. For the first time in human history one begins to perceive a sort of unity, perhaps already present in ancient thought, which was then lost with the progressive specialization of knowledge in recent centuries.

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publications

DeBruijnNewmanH

Published in MathWorld – A Wolfram Web Resource, 2021

This resource defines the DeBruijnNewmanH function in the Wolfram Function Repository, related to the De Bruijn–Newman constant.

Recommended citation: Gatti, R. (2021). "DeBruijnNewmanH." From MathWorld – A Wolfram Web Resource. https://resources.wolframcloud.com/FunctionRepository/resources/DeBruijnNewmanH/
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Number of Distinct Solutions for the Maximum Value of the Gilbreath Equation

Published in The On-Line Encyclopedia of Integer Sequences (OEIS), Entry A346270, 2022

This OEIS entry gives the number of distinct solutions that yield the maximum value of the Gilbreath equation for ordered sequences of n integers.

Recommended citation: Gatti, R. and OEIS Foundation Inc. (2022). "Number of distinct solutions for the maximum value of the Gilbreath equation of an ordered sequence of n integers." The On-Line Encyclopedia of Integer Sequences, Entry A346270.
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Lowest Common Denominator of n-th Gilbreath Polynomial

Published in The On-Line Encyclopedia of Integer Sequences (OEIS), Entry A347925, 2022

This OEIS entry defines a(n) as the lowest common denominator of the n-th Gilbreath polynomial.

Recommended citation: Gatti, R. and OEIS Foundation Inc. (2022). "a(n) is the lowest common denominator of n-th Gilbreath polynomial." The On-Line Encyclopedia of Integer Sequences, Entry A347925.
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Triangle Read by Rows Where Row m is the m-th Gilbreath Polynomial

Published in The On-Line Encyclopedia of Integer Sequences (OEIS), Entry A347924, 2022

This OEIS entry defines a triangle where each row corresponds to a Gilbreath polynomial, and each column represents the numerator of the coefficient of the corresponding degree term.

Recommended citation: Gatti, R. and OEIS Foundation Inc. (2022). "Triangle read by rows where row m is the m-th Gilbreath polynomial and column n is the numerator of the coefficient of the n-th degree term." The On-Line Encyclopedia of Integer Sequences, Entry A347924.
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HyperDet

Published in MathWorld – A Wolfram Web Resource, 2022

This resource introduces HyperDet, a function for computing hyperdeterminants in the Wolfram Function Repository.

Recommended citation: Gatti, R. (2022). "HyperDet." From MathWorld – A Wolfram Web Resource. https://resources.wolframcloud.com/FunctionRepository/resources/HyperDet/
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HyperTr

Published in MathWorld – A Wolfram Web Resource, 2022

This resource defines HyperTr, a function for computing hypertraces of hypermatrices in the Wolfram Function Repository.

Recommended citation: Gatti, R. (2022). "HyperTr." From MathWorld – A Wolfram Web Resource. https://resources.wolframcloud.com/FunctionRepository/resources/HyperTr/
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IdentityHypermatrix

Published in MathWorld – A Wolfram Web Resource, 2022

This resource defines IdentityHypermatrix, a function for generating identity hypermatrices in the Wolfram Function Repository.

Recommended citation: Gatti, R. (2022). "IdentityHypermatrix." From MathWorld – A Wolfram Web Resource. https://resources.wolframcloud.com/FunctionRepository/resources/IdentityHypermatrix/
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DIY Time Machine

Published in ScienceOpen Preprints, 2023

This preprint presents speculative and theoretical considerations around constructing a DIY time machine, hosted on ScienceOpen.

Recommended citation: Gatti, R. (2023). "DIY Time Machine." ScienceOpen Preprints. https://doi.org/10.14293/PR2199.000233.v1
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From Doppler Effect to Black Hole

Published in HAL Open Science, France, 2024

This work explores the connection between the Doppler effect and the physics of black holes, as archived in the HAL open repository.

Recommended citation: Gatti, R. (2024). "From Doppler Effect to Black Hole." HAL Open Science, France. ⟨hal-04699724⟩. https://hal.science/hal-04699724/
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Launch Proposals for a Space Projectile

Published in HAL Open Science, France, 2024

This work presents conceptual and technical proposals for launching a space projectile, archived in the HAL open repository.

Recommended citation: Gatti, R. (2024). "Launch Proposals for a Space Projectile." HAL Open Science, France. https://hal.science/hal-04699926/
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Structure and Requirements for a Knowledge Architecture

Published in Preprints, 2024

This preprint outlines the structural foundations and key requirements for designing a comprehensive knowledge architecture.

Recommended citation: Gatti, R. (2024). "Structure and Requirements for a Knowledge Architecture." Preprints. https://doi.org/10.20944/preprints202403.1719.v3
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Astroinformatics AAM: Data Science per l’Astronomia Amatoriale

Published in Associazione Astrofili Mantovani, 2025

Con la presente proposta si intende avviare un nuovo filone di ricerca all’interno dell’Associazione Astrofili Mantovani, basato sull’impiego di tecniche avanzate di elaborazione dati per l’analisi automatica e semiautomatica di fenomeni astrofisici transitori…

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Ricerca radioastronomica AAM

Published in Associazione Astrofili Mantovani, 2025

Con la presente nota proponiamo all’Associazione Astrofili Mantovani un progetto di ricerca finalizzato al consolidamento dell’attività scientifica e all’apertura verso nuove aree di indagine. In particolare, intendiamo porre l’attenzione sul progetto di radioastronomia open source Whistle of Wind…

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Scienza e divulgazione UGIS

Published in gttrcr, 2025

In questa nota proponiamo alcune attività di immediata attuazione da intraprendere nell’ambito della collaborazione con l’Unione Giornalisti Italiani Scientifici (UGIS)…

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Spettrofotometria AAM

Published in Associazione Astrofili Mantovani, 2025

Il progetto mira a introdurre e sviluppare competenze spettrofotometriche all’interno dell’AAM, coinvolgendo soci e pubblico generalista in un percorso formativo e operativo…

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Dall’effetto Doppler ai buchi neri

Published:

Riccardo Gatti (Socio, Associazione Astrofili Mantovani) accompagna il pubblico in un viaggio tra i concetti fondamentali della fisica moderna, partendo da un fenomeno quotidiano — l’effetto Doppler — fino a giungere ai misteriosi buchi neri.

Coerenza e logica a fondamento dell’universo

Published:

In questo episodio della serie OneBeWhole, viene approfondito il ruolo fondamentale della coerenza e della logica nella struttura dell’universo, intrecciando riferimenti filosofici, matematici e scientifici.

La conoscenza nasce dalla combinazione di principi, coerenza e linguaggio

Published:

In questo episodio della serie OneBeWhole, si esplora la complessità del processo che trasforma le informazioni semplici in vera conoscenza. Non basta avere una semplice informazione su qualcosa per conoscerlo veramente; affinché un’informazione diventi conoscenza, essa deve essere vera, bisogna crederci e giustificarla.

Cosa cercano i ricercatori?

Published:

Dr. Riccardo Gatti (Socio, Associazione Astrofili Mantovani) presenta un’affascinante riflessione sul ruolo della passione, dell’innovazione e del desiderio di scoperta nel campo dell’astrofisica, sia per i professionisti che per gli appassionati. La passione, lo stimolo all’innovazione e il desiderio di scoperta guidano costantemente ricercatori e appassionati a spingere avanti le frontiere della conoscenza. Ma cosa si fa concretamente in un laboratorio o in un osservatorio e quali sono i problemi aperti che ancora aspettano di essere risolti?

Le onde sono la chiave per comprendere molteplici fenomeni naturali

Published:

In questo episodio della serie OneBeWhole, si esplora il ruolo fondamentale delle onde nella comprensione di numerosi fenomeni naturali: dalla propagazione del suono nell’aria alla luce delle stelle, fino alle vibrazioni quantistiche della materia.

teaching