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Polkadot is an open-source interoperability and security focused blockchain founded in 2017 by the Web3 Foundation, which counts former Ethereum Chief Technical Officer Gavin Wood as its president. 

As a promising next generation platform, Polkadot is attempting to build the foundations of “Web 3.0”, a term used to describe the next version of the internet that is truly decentralized and gives users control over their data and identity. Polkadot attempts to do this by creating a secure umbrella network under which individual network economies can function autonomously. 

The Polkadot relay chain is the fundamental layer upon which independent blockchains can communicate. Individual blockchains exchange data across this layer, making cross chain registries and computation possible. This works for both permissioned and permissionless blockchains. As an example of the usefulness of this feature, the team describes how a school’s private academic records can be used with a public degree or credential verification blockchain.

The two other major technical elements of the Polkadot platform are parachains and bridge chains, the former being chains designed specifically for applications and the latter being chains that connect Polkadot to external blockchains.

Several other projects are also being built on top of the Polkadot network, such as ChainLink, iExec and Aragon. The team also says that many development teams are building applications on Polkadot, including file storage, financial, oracle, identity and payment chains.

Currently, the team is working on a series of Proof-of-Concepts for new features, such as interchain computation. A full release is expected in late 2019.

Polkadot Hello World #5: Minting, Bonding, Staking, Slashing

25 Aug 2019 8 minute read talfco $1.44 tipped

This week’s article is about “minting”, “bonding”, “staking” and “slashing” which are core functions of a Proof of Stake (POS) blockchain consensus engine. It’s a follow-up article of “Polkadot Hello World #2: Get Nominated As An Official Validator”,...

Polkadot Hello World #4: Security and Availability Aspects of Your Validator Node

25 Aug 2019 6 minute read talfco $1.48 tipped

In this article, I will address two topics in the context of the security and availability aspects of your Validator Node. I’m aware that the tips presented are just covering the tip of the “security and availability” iceberg for a PoS validator node...

Polkadot Hello #3: Substrate and Wallets

25 Aug 2019 8 minute read talfco $1.29 tipped

This is a repost of an article I wrote October 2018. Polkadot and Substrate evolved, nevertheless major concepts introduced are still valid. Around the 15th October (as announced in the following hackmd.io article) the Pre-POC-3 test net called “BBQ-...

Polkadot Hello World #2: Get Ready to Be Nominated as Official Validator

25 Aug 2019 9 minute read talfco $2.12 tipped

This tutorial is based on Polkadot POC2 and potentially some steps are out-dated (but major concepts are still correct) I suppose you followed the steps as described in my first article and have now a stable Polkadot Validator cloud instance running....

Ethereum's Co-Founder Has a New Project Valuated at $1.2B And You Probably Haven't Heard Of It

12 Aug 2019 1 minute read kevW!ls0n $1.97 tipped

Ethereum co-founder and programmer Gavin Wood’s current venture, the Polkadot (DOT) project, has concluded its token sale, selling 500,000 DOT tokens at a targeted value of a staggering $1.2 billion. No mention was made of the total sum of the funds...

Polkadot Hello World #1: Cost-Effective Cloud Deployment of a Validator Node

8 Aug 2019 10 minute read talfco $0.06 tipped

This tutorial is based on Polkadot POC2, but may also work for POC3.   The following article series “Polkadot Hello World" describes the steps and findings during my personal kickoff phase in the area of the Polkadot multi-chain framework.   In the l...