Blockchain and Cryptocurrencies

Rasselas_Wildcat · June 2, 2020, 1:39pm

I’ve looked around the web for a great source of knowledge regarding the industry. I feel at home here. This is a great place to learn. Ivan, I read a little bit about you and subscribed to your YouTube. You give hope to all of us. Thank you for all the hard work you and the team have put in building this environment.

edstar · June 5, 2020, 2:57am

Hi Ivan, enjoying the course so far. I like how you make it quick and straight to the point of each topic. As you say, " it should not take that long ".

Avant-Garde · June 5, 2020, 8:27am

Getting familuar with this platform and how the course work. So far so good. Is there any exam in the end or is it a questions and answers in the forum?
How will the certificate be issued?
Thanks ladies and gents!

Mroman · June 6, 2020, 1:26pm

This is a good course to understand the basic concept of the blockchain. It touch on a high level basis all the value features. Can´t wait to keep learning…

Urbain · June 8, 2020, 6:39pm

This course is very instructive, thank you!

CryptoDenise · June 8, 2020, 11:22pm

Use cases for blockchain in finance, business and healthcare have been addressed in this topic. Are there any use cases in education? All learning would need to be online and on the blockchain, but would we tolerate transparency in education? Are we willing to sacrifice privacy? I think education needs be decentralized.

CryptoDenise · June 8, 2020, 11:54pm

Maybe if the ledger was anonymous with private and public keys?

whip23 · June 9, 2020, 2:53am

Great to be here Ivan!

Hamze_Dirir · June 9, 2020, 6:25pm

Going through the course as on now and so far am loving this. I have my study plan and following it as suggested. I am glad that i joined the community and love this.

Feel free to point any mistake on any answers that you might come across from me.

Tiba · June 10, 2020, 12:04am

How does a blockchain2.0 makes sure no one just clutters it with dapps using up a lot of processing power of the network. Couldn`t someone just make some complex simulations which uses up the entire network if it is possible to programm anything in dapps?

Mercurydan · June 10, 2020, 12:34am

Is traceability and Provenance the same thing or are there subtle differences?

Orgotrucker · June 10, 2020, 11:17pm

Traceability and transparency of the data create Provenance. They are the two wheels of the blockchain bicycle. So traceability helps create Provenance.

wafflemakr · June 12, 2020, 12:19am

Good question Tiba! That’s why there is a fee involved in each transaction. If the network is congested, fees go up, so it won’t be that cheap to make as many transactions as before.

Felipe.

Lacho · June 12, 2020, 2:44am

Loving to study. Great content.
Thanks

Raphael_VON_GAL · June 12, 2020, 8:29pm

Hi Evry1, I’m a newbie in Dev thing but not in Crypto. I trade Financial markets since 2008 and Crypto since 2013. I’m an Anarcho capitalist and I have been studying about Austria school since I realized that Bitcoin was builded with this concept as core. I see that our society will be better using Decentralized Money as well Decentralized everything including Gov hahaha

I hope I can learn a lot here about Coding etc and share my experiences in Trading Futures, Forex etc as well.

I found very nice and dynamic this community, I’m enjoying the courses and I’m excited to code my own Algo for trading one day :=)

Raphael_VON_GAL · June 12, 2020, 9:03pm

Guys I’m still confuse about What Is Lightning Network And How is really working !! Does Someone have some good and Updated article about?

I’ve been sending more ETH and LTC, USDC, USDT etc to the exchanges in order to trading cause I still have doubts about the fees in BTC and how long the transactions will be taken to complete.This can be sucks sometimes for someone that have to HEDGE positions in Futures and Margin like me, therefore I have being using ETH and Stable coins most of the time.
I swear I really want to use just BTC but I realized the fees and speed are not ideal yet, specially for payments in shops etc, where we have to exchange for DASH LTC to do lower buys with fast speed.

Another day I have sent BTC for a small fee and it took 15 minutes, but I already did transactions that took 2 hours+.

Tks in Advance for the replies!!

Karl · June 12, 2020, 9:40pm

I have a question about transaction fees. Looking up latest fees in blockchain.com blockchain-explorer, the latest fees range between 1USD and 6USD. During Ivan on tech Live, you accept Donations of about 7USD. As fees are not calculated according to height of transaction but length of transaction, aren´t the transaction fees too high to make sense paying small amounts with BTC?

As fees are calculated according to transaction length and length is depending on total number of inputs / UTXOs, aren´t many small inputs you get from small transactions like donations absolutely inefficient as they create long following transactions when spent and increase transaction fees reducing the received funds?

I would be so glad for help Thanks

Naz · June 13, 2020, 5:00pm

Hi.

I hope this helps!

github.com

lnbook/lnbook/blob/develop/03_how_ln_works.asciidoc

[role="pagenumrestart"]
[[ch03_How_Lightning_Works]]
== How the Lightning Network Works

Now that we've followed Alice as she's set up a Lightning Wallet and purchased a coffee from Bob, we'll look under the hood and unpack the different components of the Lightning Network involved in that process.
This chapter will give a high level overview and will not delve into all the technical details.
The goal is rather to help you to become aware of the most important concepts and building blocks of the Lightning Network.

If you have experience in computer science, cryptography, Bitcoin, and protocol development, then this chapter should be enough for you to be able to fill out the connecting details by yourself.
If you are less experienced, this chapter shall give you a good enough overview so that you will have an easier time reading through the formal protocol specifications, known as BOLTs (Basis of Lightning Technology).
In case you are a beginner, this chapter will help you better understand the technical chapters of the book.
However, we are aware that some readers may have a hard time following high level descriptions without explaining all the details.
If you are one of those readers you may want to skip this chapter.

We'll start with a one sentence definition of what the Lightning Network (LN) is and break it down in the remainder of this chapter.

**The Lightning Network (LN) is both a peer-to-peer network of _payment channels_ on top of the _Bitcoin protocol_ as well as a communication protocol that defines how participants set up and execute the smart contracts on the Bitcoin network**

We will see that a payment channel is simply a 2-out-of-2 multisignature address on the Bitcoin network for which you hold one key and your channel partner holds the other key.
This multisignature address comes with a cryptographic protocol that is established by creating a sequence of transactions that spend from this address.

This file has been truncated. show original

Cheers

Raphael_VON_GAL · June 13, 2020, 9:40pm

wowwoow Tks a lot :=) I will read this right now!!

Arac001 · June 15, 2020, 1:53am

Good Material. and will be more and more enjoyable the deep it gets. I can’t wait to reprogram science.