How to

Tutorial: Learn how to use blockchain explorers

Key facts:
  • There are tools that allow you to keep track of your portfolio.

  • Know the amount of crypto assets mobilized in a certain period of time, as well as other data.

The information contained in the various blockchain platforms is open and accessible to everyone. Anyone can see them, but how do you access blockchain data? There are tools that allow you to track your portfolio and measure the amount of cryptoassets mobilized over a period of time, as well as other transaction-related data.

In this tutorial by CryptoNoticias We will learn how to use some of these tools and how to interpret the information they provide.

View blocks using

One of the most famous portals for viewing the information of the parent blockchain is In it we can see the mined blocks and their information in real time. To start, we will go to the main portal and we will be shown the following image. main portal

This is the home screen of this portal. In the central list we will see the last mined blocks. If we click on «More information” We will be able to see all the mined blocks arranged in chronological order. In each column of the table we will see:

  • Height: Refers to the number or height of a block in the blockchain.
  • Antiquity: Time since blasting the block.
  • Minutes: Number of transactions in the block.
  • Total quantity delivered: Shows us the amount of bitcoins sent from this block.
  • Solved: Shows us the name of the mining pool that processed the block.
  • Size (kb): The block size is displayed in kilobytes
  • peso (kWh): Refers to block weight in watts.

I We click on the name that refers to the height of the block This will take us to see more detailed information.

Block details on the Bitcoin blockchain

Here we will find some more interesting details about the block. In a box of Summary We will see among the most important:

  • Number of transactions: Here is the total number of transactions posted in this block.
  • Total product: This is the total amount of bitcoins exchanged in transactions in this block.
  • Transaction fees: This is the total bitcoin paid for each transaction in this block.
  • Height: Height or block number.
  • Solved by: The name of the miner who solved the block.
  • In the meantime (one time): is the number used to obtain the unique hash of the block, together with the hash of the previous block and the merkle root.
  • Block reward: is the reward paid to the miner who solved the block.

In the table of Hash We will see the hash data of the block in question, as well as the previous and next block, as well as the merkle root.

At the bottom we find a list of minutes or block transactions.

List of minutes or block transactions


This serial refers to the unique hash of the block. With this identifier we can search for this block in any Bitcoin blockchain explorer.


Transaction statistics such as: Share or the commission paid for the transaction. hour/WU: Value in satoshis for each unit of watts consumed. hour/B: cost in satoshis per byte. Finally, the size of the transaction.


Here we go to see portfolio or portfolio output. A peculiarity appears in this section, sometimes there are more than two output portfolios Because certain apps store our funds in more than 1 wallet, and at the time of transfer, the app will collect funds from each wallet until the total amount to send is completed. This can greatly affect the commission paid..


Here we go to see entrance ticket destination and, as on other occasions, we can see more than one direction of the portfolio in this section. This happens because the hash of each currency is unique and when exchanged it is destroyed and replaced by another one. Likewise, in this message section «“Could not decode output address”, referring to the fact that the transaction was carried out with the SegWit protocol of separate witnesses.


This is the total amount of the transaction. If we click there, we’ll see the total dollar amountdepending on the price of bitcoin at that time in this currency.

Now that all this is clear, let’s look at the transaction in more detail. For that we will click on the hash, we can go directly to the transaction by setting the hash in the top menu browser.

Blockchain transaction details

In the table of Summary We will see transaction details such as:

  • size: the size in bytes of the transaction.
  • Weight: transaction weight in watts.
  • Reception time: the time at which the transaction was recorded.
  • Included in the block: The block in which the transaction was recorded.
  • Confirmations: Total transaction confirmations (2 are vital, 4 necessary, 6+ transaction is irreversible).
  • To view: By clicking here, we can see the completed transaction in the form of a diagram.

On the other hand, we have a table Enter and exit:

  • Total Entry: The total amount received for the transaction.
  • Overall performance: The total output of the transaction with the sum of what was received by the destination address plus commissions, this amount should not necessarily be the total input, as the excess is returned to the sender.
  • commissions: Commissions paid to miners.
  • Tariff per change: Cost paid in satoshis for each byte used.
  • Rate per unit weight: Price in satoshis for each watt.
  • Estimated BTC trade: It is the subtraction of the total output minus the commission, i.e. the total amount received by the destination address.
  • Scripts: This option allows you to see or hide scripts and coinbase transactions, which are displayed at the bottom.

At the top we can see the wallets that were used in this transaction.

Well, so far we’ve learned how to interpret block and transaction information, now it’s time to look at wallet information.

To begin with we will get the wallet address and place it in Explorer in the top menu to locate it.

Blockchain wallet details

Here we will see all the information about this portfolio, in terms of its own information, as well as information about transactions that have been made from this address.

In the table Summary We will see the address, the wallet’s own hash and some tools regarding tags and unspent outputs, or photos that the wallet still has.

On the right side we will see a table Minutes or transactions, where we can see data such as: number of transactions, total received and total balance that the address still has.

If we go a little further down, we will see the data about each executed transaction, this data will be seen in the same way as the transactions shown in the minutes of the block.

One of the advantages of being able to consult this information is that we can verify payments Without the need to have the wallet with us, we only need this address and we will look for it on this portal, because every transaction that is made in the blockchain is open and can be viewed by anyone.

Calculation of funds from the wallet with Blocktrail

In the blockchain ecosystem, there is not only the explorer we saw before; There are many of them, but there are some that offer special features such as Blocktrail. This page, in addition to allowing us to observe the blockchain as we have been doing, allows us to organize the funds we receive through the address over a period of time, which allows us to have more control over the exits and entries. from this address.

To begin with, we go to the main portal

Blocktrail home page

Once we’re here, we’ll click on the top menu Explorer.

Blocktrail blockchain research section

Here we will be in the section of the Bitcoin blockchain research portal, to begin with we will see at the top of the explorer where we can search for transactions, block IDs, wallets or hashes. We will use it later, for now we will lower the portal view.

A table showing a graph of the current fluctuation in the price of bitcoin.

In this table, the current price of bitcoin will be presented. If we place the cursor over a part of the graph, we will see the price at that moment.

A graph of the distribution of the total blocks mined by each miner over a period of time.

In this table we will see the number of blocks mined by each miner represented in a certain period of time.

Now, what we have come to, to begin with we will get the address of the wallet, once that is done we will put it in the explorer and we will see the following.

Wallet details on Blocktrail

Here we will see all the data about our portfolio, as was the case with the previous researcher, and if we click on the tab Transactions Let’s look at the transactions made from this address.

Well, if we scroll down the page a bit…

Tables presenting statistics of portfolio transactions

On the left side we will see graphs related to the transactions made from this wallet, where the red ones will be the ones sent and the green ones will be received. U TOTAL TX Let’s look at the total transactions. On the right side we will see the following graphs:

  • Confirmed status: It is the total balance of verified funds found in this wallet.
  • The largest Tx: It is the largest transaction received in this portfolio.
  • Received: It is the total amount of funds received.
  • Sent: Total funds sent.
  • Mining fees paid: Total amount paid out to miners.
  • Average tx: It is the average funds per transaction.

Well, this information is from when the portfolio was created until today, but it gives us a special feature Blocktrail is that we can organize it by time if we click on the tab above the chart that says “All Time” We will display the next tab.

This list helps us organize data by time period

Here we can choose from which date (to date) we want to see those funds, but if we want to be more specific, we can set 2 dates at the bottom and in this way the graphs will be displayed in relation to the set dates.

This utility is very practical for accounting areas, as it allows greater tracking of funds and with greater precision as to when each transaction was received or sent.

Transaction tracking with Blockseer

Blockseer is a platform built for tracking and viewing blocks of Bitcoin and Ethereum blockchains, but with a very special feature that we will see below.

Portal principal de Blockseer

To begin with, let’s go to the official portal of and we will register by clicking ‘Apply’ on the top menu. After registration and confirmation of our email, we will enter the portal.

Our profile menu

Here we will see:

  • Account information: Information about our profile.
  • Address Labels: Saved tracking tags.
  • Saved graphs: Saved graphics.
  • Descriptions of transactions: Transactions tracked.

Well, the funny thing about Blockseer is that we can put labels on the wallets so you can track later transactions. Likewise, this tracking is done in the form of graphs, of every movement made from this portfolio.

Now to get started, we’ll get the portfolio address and put it in the browser in the top menu.

Portfolio details on Blockseer

Here, as was the case with previous researchers, we will see data about our portfolio, although among them we will find a section called Address labelshere we can see tags related to our portfolio, either those we have assigned to it or other users.

On the other hand, in the second field we will find a section that allows us to add tags to our portfolio. We can set either a label we previously created or a new one. This tag can be accompanied by a description, code, etc. Once this is set, we will click on Save Label and the tag will be added.

When we go to the bottom of the page, we will find a list of transactions, we will click on any column Tx Hash it will open a chart of that movement.

Chart View Section

What we see in the image is the graph of the transaction, that is, the source wallet and the destination wallet, along with the return wallet, the latter will house the rest of the funds that were not sent by that transaction.

On the left side we will see the options with which we can save the graph (to consult it later from our profile), extend it to the next transaction or vice versa, as well as the option to share the graph.

On the right side, we will see a table with information about the transaction or transactions, in case we have not clicked on any wallet. Here we can also see portfolio data if we select it, as well as existing tags.

As for the meaning of the figures, white square This means that the portfolio is unlabeled and has no assets, but if this square has a green background, it means it has a label. Dotted circle This means that there are still unspent funds in this portfolio.

In case we want to see the subsequent transactions of the portfolio, we just have to double click on any portfolio and it will expand the outgoing transactions of the funds it has received.

A more complete transaction funds tracking chart.

As you can see, now extended to a total of two transactions, because this wallet had only one outgoing transaction. In the table on the right, you can see that we now have two transactions on the graph, each identified by its respective hash. If we want to see the portfolio data, we just have to click on it.

Details of our portfolio

As you can see on the right side we will see the data of our portfolio, since this portfolio has inputs and outputs that are not shown on the chart, we will find two options Related incoming transactions y Associated outgoing transactions These options allow you to see the incoming and outgoing transactions of this portfolio that are not reflected in the chart because they have nothing to do with the assets or the transaction that we visualized at the beginning.

On the other hand, just like on the information screen of our portfolio, here we can add a label, we just have to give it a name and a description if we want and click on Save Label so that our label is saved, and we can consult it later in our profile.

This tool is widely used to track theft and fraud, as happened with the virus. WannaCry which asked for a certain amount of bitcoins to be sent as part of the extortion so that you can recover your files. Another important case was theft in fake Enigma ICO who cheated many investors on Ethereum platform (Blockseer is in beta version of Ethereum blockchain). Here is a picture of the monitoring that was done on the fraudulent funds.

Tracking through Blockseer to the fake Enigma ICO scam

The usefulness of each block explorer depends on the individual, although each explorer offers a unique feature. Likewise, this is not the only way to observe transactions on the blockchain, there are alternative portals a little more dynamics that help us observe the blockchain.

Undoubtedly, the researchers are proof of the transparency of the blockchain, which, although it proposes partial anonymity of transactions, does not cease to make this data traceable, an advance that only allows for the common distribution of information on a single platform.

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