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BlockChain

A blockchain is a technology for storing distributed records in a cryptographically secure way. The records to be included in each new block are broadcast to all nodes in the network to be verified and packaged together. This block is chained to the previous one with a cryptographic hash function which prevents tampering and ensures consensus amongst all nodes on the network. The most popular use for the technology is as a ledger for digital currency.

Curious, how do people go about arranging to receive $ in bitcoins anonymously?
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For one of my classes, I have to conduct a 20 min game/activity with the class that explains how blockchain works in an easy-to-understand way. Would be even better if it has to do with marketing, as that's the class I'm in. It can be as rudimentary or as advanced as we want.

Only idea I have right now is playing a giant game of rock paper scissors where everybody frantically runs around for 10 minutes and plays & wins as many games of rock paper scissors with classmates as they can. When each game is over, both opponents have to go to the notebook in the center of the room and put a tally mark next to who won. This shows that blockchain ensures accountability, everybody documents every "transaction" that is made, and that everybody has access to the public records at all times. (Rather than just everybody keeping track of their own score, which could induce cheating.)

Any ideas? I feel like this is a fun question to answer.
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Hi, all! I just had a Vision about the use of Blokchain, and wonder if someone can help me:
In the trade and travel industry, it often happens that the one who collected the money and acted as an intermediary or agent only, gets bankrupt. Or, the agent doesn't get the commission he is owed. In the travel industry it happens that people arrive and denied accommodation because the hotel is not paid, ect. A lot of Risk everywhere.

I wonder, could a blockchain crypto-currency be created that "splits" all the amounts and diverts them to all the parties involved in the business process as soon as the end-user (customer) has paid his amount?

Please, send me your thoughts about this. Thanks! Warmest regards, Alex
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hi,

any usage of blockchain and how to implement it in MS SQL database ?
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Downloading the chaidata files with geth

I downloaded the ethereum  blockchain yesterday  (geth --rpc --fast -- cache=1024) I did not mine at all, today it is different, clearly if I run it again will it append the new data to update the blockchain in my computer or does it start from scratch. Or will the mining software update it?

It downloaded 12.8 GB and now it is growing again.... in 30 minutes it has appended data now it is 13.5 GB in size. Something is not right

If the power goes down do I have to download the whole blockchain again?

Once this is solved I want to mine with cpp-ethereum-windows-v1.2.9.exe

Any suggestions will be appreciated. Running in Winows 8.1

Any ideas?
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I'm looking for developer who is from the cryptocurrencies domain.
What is the skills required if I need a developer who can build the following:
1) Cryptocurrencies Multilayer Wallet for its own ICO and BTC, ETH…
2) Write Smart contract,
3) Blockchain Explorer,
4) Self-hosted Cryptoexchange
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BlockChain

A blockchain is a technology for storing distributed records in a cryptographically secure way. The records to be included in each new block are broadcast to all nodes in the network to be verified and packaged together. This block is chained to the previous one with a cryptographic hash function which prevents tampering and ensures consensus amongst all nodes on the network. The most popular use for the technology is as a ledger for digital currency.

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