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

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

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

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

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]

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

BLOCKCHAIN TECHNOLOGY OVERVIEW & CRYPTOCURRENCY CRIMES: CBI ACADEMY

Sharing this presentation here in this post that brings an exhaustive overview of the Blockchain Technology and emerging Cryptocurrencies crimes.The presentation was given at CBI Academy on 16 Nov 18 by self :

   BLOCKCHAIN TECHNOLOGY OVERVIEW & CRYPTOCURRENCY CRIMES by Anupam Tiwari on Scribd

BLOCKCHAIN ,BITCOIN & CRYPTOCURRENCIES WORLD : MECHANICS AND CYBER CRIME

The world of Blockchain and Cryptocurrencies is undeniably amazing and has infinity to explore at hands.Recently I took on a 4 hour session at the prestigious Central Bureau of Investigations,CBI Academy ,Ghaziabad, vide Indian Technical and Economic Cooperation Programme organised by Ministry of External Affairs,to cover right from scratch to overview of mechanics and architecture of how this world works.Sharing here the presentation for info and awareness of anyone who is interested to take a dip in this domain and related cyber crime activities.

BLOCKCHAIN ,BITCOIN & CRYPTOCURRENCIES WORLD : MECHANICS AND CYBER CRIME from anupriti

 

BITCOIN FORENSICS AGAIN : Bsides Delhi 2017

1. I have been on a spree like something giving presentations in the domain of BITCOIN FORENSICS for past few months...and more or less talking discussing around the same terms of references but to a new audience always though.Recently participated at Bsides Delhi. Security BSides is a community driven framework for building events by and for information security community members. These events are already happening in major cities all over the world!

The idea behind the Security BSides Delhi is to organise an Information Security gathering where professionals, experts, researchers, and InfoSec enthusiasts come together to discuss. It creates opportunities for individuals to both present and participate in an intimate atmosphere that encourages collaboration. It is an intense event with discussions, demos, and interaction from participants. It is where conversations for the next-big-thing are happening.

2.  Details on the event and about me at https://bsidesdelhi.in/anupam-tiwari/

BITCOIN FORENSICS : Bsides Delhi Conference from anupriti

BITCOIN FORENSICS : ROAD AHEAD

Gave this presentation and talk on the still evolving field of BITCOIN FORENSICS that brings out the technical overview and evolving forensics developments in the domain at the BLOCKCHAIN SUMMIT held at BrightTalk on 10th Oct 2017 vide webinar

Webinar on BITCOIN FORENSICS : BRIGHTTALK from anupriti

More Details at https://www.brighttalk.com/webcast/13689/272431/bitcoin-forensics

BITCOIN FORENSICS : CHALLENGES & HOPE

Gave this presentation and talk on the still evolving field of BITCOIN FORENSICS that brings out the technical overview and evolving forensics developments in the domain at the "4th  International Information Security Meet “ Hakon’2017, Insecure Cyber of Things – The Hackers Choice" held at Indore,MP.

BITCOIN FORENSICS : HAKON-2017 CONFERENCE from anupriti