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

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

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

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]

Cryptocurrency crimes and Blockchain Technology : Central Academy for Police Training(CAPT) Bhopal

The presentation was given at the Central Academy for Police Training(CAPT) Bhopal on 30 May 2019.The presentation covers an overview of what Blockchain technology is and how cryptocrimes are emerging off late with challenges to Law enforcement agencies.

   BLOCKCHAIN TECHNOLOGY & CRYPTOCURRENCY CRIMES by Anupam Tiwari on Scribd

Proof of Work and connect with BYZANTINE Generals

Proof of Work (PoW) is the original blockchain consensus algorithm, and is used in projects such as Bitcoin. It is the mechanism that enables users on a blockchain network to reach an agreed ‘truth’. A proof of work is essentially an answer to a complex mathematical problem. It takes a lot of work to find the Nonce but is easy for others to validate.PoW solves the Byzantine Generals Problem as it achieves a majority agreement without any central authority, in spite of the presence of unknown/potentially untrustworthy parties and despite the network not being instantaneous.This presentation brings out the concept Byzantine Generals proof and its connect with Bitcoin.

 

Proof of Work and connect with BYZANTINE Generals from anupriti