Steemit Crypto Academy - Homework Task | Blockchain Wallet- Chapter-1

This post is a homework task for the Sapwoods Blockchain Wallet- Chapter-1 from the Steemit Crypto Academy.

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Let's answer the questions of the Homework task one by one.

How do I find(or What is the easiest way to find) the block explorer of any Blockchain?

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Block explorers are basically transaction aggregation sites. Such sites exist for every blockchain either officially or through community maintained. In case of steem you can find many of such blockchains. We are using steemit platform of steem blockchain. You can use the steem block explorer website for checking out the account transactions, witness, blocks and upvotes.

You can find this block explorer at steemblockexplorer

This is not the only block explorer out there for the steem blockchain. You can make use of the steemscan block explorer for finding out the blockchain data. Below you can see steemscan.

In case of the steemscan, you can see it shows a lot of data about the steem transactions. For example, take a look at the below example.

Here you can see each transaction is mined by a miner. The name of the miner who mined the transaction is listed there. It also shows the timestamp for the transaction. From the image you can check the transactions performed here are 2 in numbers.

Examples? (How to find such block explorers?)

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In google search, you can make the query "blockchainname block explorer". That means when you make use of any other blockchain then you can search for the name. e.g. Ether blockchain can be queried using the query. "Ethereum block explorer". Like this you can find blockchain explorer for any blockchain on Google.

How do I check the number of confirmations?

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You can check the number of confirmations in the block explorer websites. You can also check if the transaction is confirmed or unconfirmed. Such sites also maintain the status of these type of the currency. For example, blockchain maintains list of cryptocurrencies whose transactions can be explored. Here's one way to check the number of transactions with it's confirmations. It also shows the data like block ID, Transaction ID, sender, receiver, Timestamp and percent payload. The block explorer also lists the two accounts for sender and receiver each confirmations too.

You can access the confirmation of the transaction here

How do I find the transaction hash, sender address, receiver's address, network fees of a particular transaction?

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I am going to take a random transaction from the blockchain.com and going to check one transaction to show you the transaction hash, sender address, receivers address and other data.

Example transaction on BCH blockchain here.

Here let's first start with the transaction hash:

Now let's find the sender and receiver address in the block.

Now let's see the Network fee or fee in the transaction.

How do I check whether a wallet address is valid for a network or not(using Block explorer)? Examples?

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In block explorer, when you check for the transaction ID. The data shows the wallet address where you can confirm if the address is valid or not.

For sending the coin to the valid network address, wallets are built in to trigger error if the address is not valid. Inside the steem wallet, when you try to send the SBD or STEEM to account that does not exist. The invalid wallet address message will be triggered.

e.g. For TRON blockchain you can find out invalid address within the wallet too.

Let's attempt to send the TRX to wallet address that does not exist. Lets see what message wallets generate to indicate invalid wallet address.

Here you can see unless we correct the address the wallet won't let us send the TRON.

This concludes the homework task post. I learned pretty good amount through this crypto academy lecture post from the sapwoods.