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skip to navigation skip to content thai personal page of me computer science play book tiếng việt main navigation plato and a platypus walk into a bar: funny, easy to catch philosophy ideas if you want to explore philosophy for the first (maybe second) time, this book is a good places to start. plato and a platypus walk into a bar. source: kobo.com for asian readers, those jokes may seem not culture-fit. they would be more relevant to western society. i did not get the point of some jokes. but the good point is asian readers can learn philosophy and western culture at the same time. however, knowing some basic philosophy ideas before reading would be better than knowing nothing. if you do not know anything about philosophy before, i suggest sophie’s world . in the language perspective, we have different understanding while reading the same word in different languages. our brain’s reactions are not the same while reading a word in one language, to the translated version of that word in another one. while reading this book, i realized that language is an important part of philosophy studying. wanting to know more about philosophy, i will need to proficient at academic english. wanting to learn more about some philosophers, i will have to know german. using vietnamese for these purposes is easy for beginning steps. but to go further, i will face a wall which is hard to overcome. and language proficiency is the key to go to next taller walls. 2018/05/17 by thai uncategorized book leave a comment the three-body problem – beautiful imagination about ourselves this is a science-fiction book. in the science view, it is about astronomy, physics and computer science. in the sociology view, it is about history, heartbreaking aspects of humanity, and problems of our modern society. you can also feel philosophy and theology while reading it. as material for story telling, this book uses eastern and western cultures. the story is thrilling, attractive from beginning to end. the three-body problem. source: medium via thoughts of some individuals, this book represents breaths of a country. via breaths of countries, it represents a civilization. via rise and fall of civilizations, it shines and guides human’s thoughts. human’s thoughts then inherit and evolve, as individual and as a whole, to reform destiny of worlds. there was questions in my mind: what we can learn from the past? what we can learn from the fallen and existing civilizations? what we can learn from our current situation? based on what we learnt, is it possible to know what we should do? let’s put our thoughts above all things, above our existence, above the world that we are in. then what we see and imagine can give us some helps, and then to our world. the three-body problem strengthen love for science. it beautify the endless curiosity of seeking secrets. it shows painful parts of human being, from physical to psychological, from science to love and life. it looks back to the past and question about present. it looks to the universe and question about our existence. in the end, i believe it questions about our direction. the story tells that science is motivation of civilization evolution. the curiosity to try, fail and explore the planet we are living and the universe we are a part of, should be kept in our generation and transferred to all our descendants. people can die, civilizations can fall. but scientific and historical knowledge must be kept, then inherited, spread and evolved. if we stop our curious mind and pleased with what we knew, what we are, we will let ourselves corrupted and terminated, no need other forces coming here to destroy us. a must read for science(-fiction) lovers. 2018/05/14 by thai uncategorized book leave a comment an overview of blockchain and bitcoin disclaimer this article uses contents from many resources in the internet, whose roots are hard to trace. majority of ideas are from secondary research. i also do not provide any financial information, such as which cryptocurrency to invest, when to buy or sell, or price prediction. i am only taking a look on technology and application viewpoint. first, let’s start with what blockchain and bitcoin are. what is it blockchain is a technology . it is proposed by an anonymous person/group named satoshi nakamoto. bitcoin is an application of blockchain , among many others. bitcoin’s purpose is to improve current payment system. it is decentralized, persistence, anonymous, auditable… payment process: current vs bitcoin when using bitcoin, you do not need an intermediate organization to validate your account and transfer money. everything is done inside itself. bitcoin system is incorporated and self-operated by its participants. everything is ready to work after you join. to achieve these goals, bitcoin has employed some techniques. architecture blockchain’s stacked architecture at the bottom of a blockchain architecture is blockchain. it acts like a data structure and works as a database. this database is stored in every full nodes in bitcoin system. on top of the blockchain is bitcoin protocol, which is bitcoin core project . with that protocol, coin (bitcoin, specifically) is created and transferred. difference between token and coin: tokens are used to bind physical to digital world. token can bind money (in case of coin), a company’s share, a physical product, a song, an idea… anything. coin (any kind of it: bitcoin, ether, litecoin…) is a special token, which is used like money. on the top of bitcoin are applications like wallets, exchange platform, merchants accepting bitcoin… we usually interact with applications at this level while not interacting with lower stuffs. there are many other types of coin systems (altcoins), which also have similar architecture like bitcoin. ethereum has another story, with different philosophy, design and algorithm. ethereum is platform, ether is cryptocurrency developed based on that platform. it has many useful application which i will research about. that is overall architecture. let’s go to detailed design of bitcoin. design coin any digital currency must solve double spending problem. double spending is when a digital currency is replicated and spent more than once. this problem becomes harder on a decentralized environment, without any central authority. to avoid it, every smallest piece of coins are traced from their creation, through every transaction, to recent status. any coin is authenticated before spending. coin in and out coin flow after joining this flow, a coin have to be an output of a transaction before becoming input of another one. total number of output is always less than or equal to number of input. coin can just be transferred from transaction to transaction, cannot be validly replicated. origin of every coins are traceable. mining is the only way to create coins from nothing. in case there are many transactions using the same output, the first transaction with earliest timestamp will take effect, others will be discarded. many output is when someone transfer money to more than one address. many input is when amount required for a transaction is not enough and need to be gathered from many transactions, of the same source address. unspent transaction output (utxo) is output amount which is not spent in any transaction. in other words, that amount is not used as input of any transaction. transaction fee is the difference between total input and total output. which is paid to miners for validating a transaction. transaction every transaction includes sender address, receiver address, bitcoin amount (input-output), signature of sender, and other ton of things. they are chained together by input-output mechanism. output of previous transaction is input of next one. if someone modifies amount of a transaction, he/she must modify all transactions subsequent to that one, every one of them. and must somehow make whole network accept that modification. this is theoretical

URL analysis for vnqthai.com

http://vnqthai.com/the-code-book/
http://vnqthai.com/the-art-of-computer-programming-starting-point-to-get-into-computer-science/
http://vnqthai.com/tag/cs/
http://vnqthai.com/author/vnqthai/
http://vnqthai.com/page/2/
http://vnqthai.com/sophies-world/
http://vnqthai.com/experiments-when-reading-the-art-of-computer-programming/
http://vnqthai.com/an-overview-of-blockchain-and-bitcoin/
http://vnqthai.com/death-note/
http://vnqthai.com/the-three-body-problem/#respond
http://vnqthai.com/#content
http://vnqthai.com/tag/book/
http://vnqthai.com/plato-and-a-platypus-walk-into-a-bar/
http://vnqthai.com/gone-with-the-wind/
http://vnqthai.com/the-thorn-birds/

Whois Information

Whois is a protocol that is access to registering information. You can reach when the website was registered, when it will be expire, what is contact details of the site with the following informations. In a nutshell, it includes these informations;

Domain Name: VNQTHAI.COM
Registry Domain ID: 2079603172_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.registrar.amazon.com
Registrar URL: http://registrar.amazon.com
Updated Date: 2017-11-14T03:57:27Z
Creation Date: 2016-12-06T14:07:44Z
Registry Expiry Date: 2019-12-06T14:07:44Z
Registrar: Amazon Registrar, Inc.
Registrar IANA ID: 468
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.2062661000
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS-1331.AWSDNS-38.ORG
Name Server: NS-1684.AWSDNS-18.CO.UK
Name Server: NS-400.AWSDNS-50.COM
Name Server: NS-540.AWSDNS-03.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2018-08-23T05:48:54Z <<<

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The Registry database contains ONLY .COM, .NET, .EDU domains and
Registrars.

  REGISTRAR Amazon Registrar, Inc.

SERVERS

  SERVER com.whois-servers.net

  ARGS domain =vnqthai.com

  PORT 43

  TYPE domain

DOMAIN

  NAME vnqthai.com

  CHANGED 2017-11-14

  CREATED 2016-12-06

STATUS
clientTransferProhibited https://icann.org/epp#clientTransferProhibited

NSERVER

  NS-1331.AWSDNS-38.ORG 205.251.197.51

  NS-1684.AWSDNS-18.CO.UK 205.251.198.148

  NS-400.AWSDNS-50.COM 205.251.193.144

  NS-540.AWSDNS-03.NET 205.251.194.28

  REGISTERED yes

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