Byzantine General - Proof of Work consensus and Mining in Bitcoin Blockchain

Analogical to a Byzantine general scenario wherein a number of armies intending to attack an enemy fort need to reach a consensus of day/time to attack, this video explains how Bitcoin nodes attain consensus vide the Proof-of-work method on the same lines. This video builds up from brief history from David Chaum and Adam Bach works onwards to Wei Dai works on Blind signatures, Hash Cash and Proof-of-Work to understand concept of nonce and consensus mechanism in a Bitcoin Blockchain. Further this video brings out the reward mechanics in the Bitcoin eco-system and also Mining methods and types

Distributed Ledger Technology in BLOCKCHAIN - Simple explanation

This video post brings out what DLT i.e. Distributed ledger technology is all about and what is it's contribution to blockchain.

Technology amalgamations inside Blockchain

Blockchain is an amalgamation of multiple technologies which have existed already in the IT ecosystem for last few decades. These include majorly cryptography, private-public keys, hashes, proof-of-work and other important technologies. This video post only identifies by name of what major technologies any blockchain is enabled on.

Where to start the "Learning BLOCKCHAIN" journey ?

Related to my earlier post https://anupriti.blogspot.com/2021/05/i-want-to-learn-blockchain-but-where-do.html this post focuses on the same presentation in a video talk version....

Recent Advances and Trends in Lightweight Cryptography for IoT Security and Blockchain Technologies at RGPV Bhopal 27th July 2021

An FDP was held peculiar to domain of  Lightweight Cryptography for IoT Security and Blockchain Technologies at RGPV Bhopal on 27th July 2021.The objective of this FDP was to bring together faculties, researchers, PG and UG students from across the country to learn about security challenges in Modern Cryptography, Blockchain & IoT. FDP aimed to demonstrate security challenges that Modern Cryptography, Blockchain, IoT systems pose, demands users to select a reliable and compatible architecture according to the business requirements to ensure secure flow of data and communication and also define the solution and future prospects related to these challenges. I gave a small 2 hour talk on the same which is available at the youtube link below

 CLICK ON THE IMAGE BELOW TO BE REDIRECTED TO THE YOUTUBE LINK

Cryptocurrency Technology Foundations and Crimes Investigations

 To fight against the rising challenges of Cyber Crimes, the Gurugram Police in association with Society for Safe Gurgaon, Indo-Israeli cyber security enterprise and SafeHouse Technologies organised the 9th edition of Gurugram Police Internship (GPCSSI 2021) under the mentorship of ACP Cyber crime Karan Goel and the entire Gurugram police cyber crime team in coordination with Rakshit Tandon Advisor Cyber Peace foundation. This presentation talk on cryptocurrency technology and crimes investigation was taken by Anupam Tiwari on 05th July 2021. Sharing for info of interested in domain.

Cryptocurrency Technology F... by Anupam Tiwari

I want to learn Blockchain, but where do I start from? : Here is My Answer.

I am writing this one exclusive post for guys who just wish to begin their journey in the domain of Blockchain. "Blockchain" term has been buzzing across academia, universities, corporate industries and every where around. In most of the webinars I speak in, I find many inquisitive learners willing to jump in the domain but unable to find that exclusive blockchain sea where to dive in. And if ever they try diving in, the sheer amount of books, videos and sea of information existing on the internet just splashes their visions soon to drown. Herewith I am sharing few slides that are based on my journey in this domain for now over 5 years. The presentation brings out details of topics one should start exploring and dig in followed by few books that I have in person followed and imbibed from.

How to Start Learning BLOCK... by Anupam Tiwari

Technology Internals behind Blockchain Technology

I have erstwhile shared and uploaded a number of presentations on Blockchain technology and crypto crimes though. This presentation solely focuses on internals of blockchain technology and has additional details starting from scratch for newbies to develop an initial understanding of this awesome technology. Anyone with any clarifications on any slide may contact back at the email mentioned at end of the presentation. Also sharing a picture of my books peculiar to my blockchain exploring interest

Technology Internals behind Blockchain Technology by Anupam Tiwari on Scribd

Blockchain Forensics & Cryptocurrencies : NFSU FDP 09 April 2021

The School of Cyber Security and Digital Forensics, National Forensic Sciences University, Gandhinagar organised a 5 day online Faculty Development Program (FDP) on 'Advanced Trends in Digital Forensics' from 05 Apr-09 Apr 2021.The aim of this FDP was to promote research and strengthen the Digital Forensic Investigation Techniques which include topics like crime investigation, latest trends in Digital Forensics, Fake News Detection, and Drone & Crypto Forensics. I was a invited speaker here and am sharing my presentation deck here on blockchain and cryptocurrency forensics.

 

 

Cryptocurrency Forensics and Blockchain Technology by Anupam Tiwari on Scribd

IIIT Dharwad FDP on Blockchain Technology: 04 Nov 2020

IIIT Dharwad conducted an FDP on blockchain under aegis of AICTE on 04 Nov 2020.I am sharing here webinar recording and the presentation of my sessions.

Blockchain Technology FDP at IIIT Dharwad by Anupam Tiwari on Scribd

Workshop on Blockchain Technology and e-Governance: GNLU Center for Law and Technology

A one day Workshop on Blockchain Technology and e-Governance was organized by GNLU,Ahmedabad University through its GNLU Center for Law and Technology in collaboration with Gujarat Council on Science and Technology &  Department of Science and Technology, Government of Gujarat on 19 Sept 2020. The webinar link for the same is as below:

The presentation is available for download at the following link:

https://drive.google.com/file/d/1RT79-r5LhFXdbi2D_ZKgkwu8eH9v5225/view?usp=sharing

while also the scribd direct link for viewing is available as below:

Blockchain Technology and e-Governance by Anupam Tiwari on Scribd

Summer Internship Gurugram Police : Talk on Blockchain basics and Bitcoin crimes

Blockchain basics: Mechanic... by Anupam Tiwari

 

Sharing here a webinar presentation I gave in the Gurugram police summer internship on 27 June 2020.The webinar was attended by 400 plus participants. The link to the presentation pdf is given below:

https://drive.google.com/file/d/1K13ljAstX4oCqd4iMtGROqseyMJ8Rp8R/view?usp=sharing

and the certificate I got as below:

Installation Bitcoin core on UBuntu 18.0.4 LTS : Bitcoin Mechanics -1

With this first post special to Bitcoin core,over next few months I intend to do some exploring on the bitcoin mechanics part.This basically means playing with the blocks and blockchain vide few python based scripts.Will start from the installation part followed by other posts on extracting info from bitcoin blockchain. This post basically is straight forward installation with the following commands.Screen shots for info :

Firstly install snapd with the following commands

sudo apt update
sudo apt install snapd

goto https://snapcraft.io/bitcoin-core

 

 click green button install

after this installation of snapd,one single command as follows:

sudo snap install bitcoin-core

The effected screenshots are seen below :

Once installed ,you can check on the terminal...should see three bitcoin applications by tabbing

While the GUI shows as below

When you run for the first time,the GUI notification pops for asking for location of default directory for storing blocks.

Thereafter the blocks start getting downloaded with status of files downloaded visible....

Blocks downloaded status is seen below...this downloading around 287 GB as on date will take time as per download speed available.

The location of the blocks being downloaded will be at /home/bitcoin_scripts/snap/bitcoin-core/common/.bitcoin/blocks where bitcoin_scripts is the user name.

Next post we will see whats inside the block....

CAPT Bhopal Conference Presentation : BLOCKCHAIN-BITCOIN-CRIMES INTRODUCTION & What's it all about?

A copy of the presentation and talk that I gave at Central Academy for Police Training(CAPT) at Bhopal on 29 Feb 2020.The presentation covers a brief overview of what blockchain and bitcoin mean,how they work concluded by the crimes happening around them.

BLOCKCHAIN-BITCOIN-CRIMES I... by Anupam Tiwari on Scribd

Few pics from the conference below

Blockchain Technology Workshop : IIIT Raipur

Dr. SPM IIIT-Naya Raipur, established by the International Institute of Information Technology University Act,2013 of the Government of Chhatissgarh, is a joint venture by Chhattisgarh State Government and National Thermal Power Corporation (NTPC).A workshop on Blockchain Technology was organized from 28-30 Nov 2019 at the campus with the following aims:

(a) To disseminate the knowledge of Blockchain technology among students, researchers and academicians.

(b) To discuss the current status of the Blockchain development and research work in India and across the world.

The material and slides presentation is shared at link https://drive.google.com/open?id=1s9mZtR7hnyQF4YQ5VYAxgKUiCMenWxlf

Few pics shared below

BLOCKCHAIN WORKSHOP AT G D GOENKA UNIVERSITY : REDSET-2019

The 5th International Conference on Recent Developments in Science, Engineering and Technology (REDSET 2019) organized at G D Goenka University, Sohna Road,Gurugram, focused on experimental, theoretical and application aspects of innovations in Data Science and Analytics. A one day workshop on BLOCKCHAIN TECHNOLOGY was organized by me as part of the conference.

Workshop course material at 

https://drive.google.com/open?id=1S3I6Qx6GMwfXqd10taNJZh29Oo6jtj-L

Few pictures from the event :

Proof of Sleep : Mind Boggling Consensus Algorithm

Introduction

Consensus is the backbone of the Bitcoin technology and is the reason for the Bitcoin to be widely famous since it mitigates the need for any third party mediation. Blockchain domain has around forty plus consensus algorithms as on date with many variants of Proof-of-Work ,Proof of Stake etc. 

"Proof of Sleep" consensus algorithm has been proposed to remove all existing energy dissipation issues in reaching consensus. This will also resolve complex cryptographic algorithms like DAG,Proof-of-Capacity, Proof-of-Burn etc at the click of a button. Welcome to the world of "Proof of Sleep", a new consensus algorithm wherein no energy issues and complexities are involved.

"Algorithm is based on the node admin in P2P sleeping time and essential vital parameters" as per the designer team based in Noida.

How it works?

The participating node admin will go to sleep as and when the need to attain consensus arises. More the number of people register at one node and more they sleep, the consensus is designed to get stronger and expedited. Thereafter the node breathe vitals and snoring decibels will be syncd with the "pre-sleep division" working in Washington, DC. The sole purpose of this division is to use the precog(nitive) potential of this node to prevent waking-up. The breathe vitals will include the exhale/inhale composition of gases. Once syncd,the cryptographic hash of the dreams will be recorded to generate an ultimate unique 4096 bit key. This will be back linked to the nearest person sleeping to this node which will be decided by the Open Shortest Path First (OSPF),an established routing protocol.

Completely based on dreams,the node thus has to fulfill certain QRs before being established as a node. The QRs for participation as a node have been submitted to ISO 14000 ,a series of environmental management standards.

Hyperledger ,the multi-project open source collaborative effort hosted by The Linux Foundation has taken keen interest to explore this. The Linux foundation plans to replace Apache Kafka in Hyperledger Fabric and RBFT in Hyperledger Indy with Proof of Sleep.

Satoshi ACTIVE again

Meanwhile as per fresh inputs received Satoshi Nakamoto's email id satoshin@gmx.com has got active this Friday again. Thus after a decade of sleep,Satoshi Nakamoto has consented to replace Proof of work with Proof of Sleep. This shows the kind of buzz and confidence this new consensus algorithm.  "Now that I had been sleeping over a decade,this algorithm fits fine and I intend replacing my proof of work with Proof of sleep. This will ensure that even as I sleep again, I would contribute to all the consensus taking place around " Satoshi Nakamoto mentioned in email, hinting at his sleep and vanishing act again.

Conclusion

Proof of Sleep is a turning point in the evolving domain of Blockchain and its consensus algorithms. The existing consensus algorithms have faced energy wastage issues across the globe. This path breaking algorithm is likely to shutdown all mining farms and pave way for a green consensus. Proof of sleep will bring the peaceful stone age earth times since maximum participating nodes will be in sleep mode. With maximum nodes sleeping,it couldnt have been better for a peaceful,no war,no ruckus earth,

[ NOTHING SERIOUS ABOUT THIS POST PLEASE : EXCUSE ME IF YOU HAVE SERIOUSLY READ THIS]

BLOCKCHAIN TECHNOLOGY & CRYPTOCURRENCY CRIMES & CHALLENGES

   BLOCKCHAIN TECHNOLOGY & CRYPTOCURRENCY CRIMES by Anupam Tiwari on Scribd

Today gave a talk on  "BLOCKCHAIN TECHNOLOGY & EMERGING CRYPTOCURRENCY CRIMES & CHALLENGES". The talk was part of first of its kind FDP held at RGPV University Bhopal.Few pics as seen below from the event

 

 

Covered in press as seen below :