Explore Bitcoin One Block at a Time### From the Genesis Block to Your Own Transaction
A Bitcoin transaction does not simply disappear into an abstract network.
Once confirmed, it becomes part of a specific block — with its own height, timestamp, hash, transaction count, mining reward, and permanent position in Bitcoin’s history.
Traditional block explorers expose all of this information, but they are usually designed for individual searches. You enter a transaction ID, inspect a table of technical values, and leave.
Bitcoin Block Monitor takes a different approach. It turns the Bitcoin blockchain into a visual timeline that can be explored block by block.
The blockchain as a filmstrip
At the center of the app is a horizontal block history.
The selected block remains fixed beneath a marker while the surrounding blockchain moves like a filmstrip. Scroll to the left to travel into Bitcoin’s past or move right toward newer blocks.
You can also:
- use the arrow keys for precise navigation,
- move through the chain with a mouse or trackpad,
- jump directly to the Genesis Block,
- return to the latest available block,
- search for a block by height or hash,
- find the block containing a specific transaction. Missing blocks are loaded as they are needed. Previously retrieved blocks are cached locally, making repeated exploration faster after relaunching the app.
Instead of treating every block as an isolated search result, the interface shows it as part of a continuous history.
Start at the beginning
Jumping back to the earliest Bitcoin blocks reveals how different the network once was.
Block 0 — the Genesis Block — was mined on January 3, 2009. Many blocks from Bitcoin’s early years contained only the coinbase transaction that created the block reward. At the time, the block subsidy was 50 BTC.
Move forward through the filmstrip and the transformation becomes visible:
- transaction counts increase,
- blocks become larger and fuller,
- mining difficulty rises,
- mining pools appear,
- transaction fees become more significant,
- the block subsidy falls after each halving. These are not simulations or prepared examples. They are real blocks from Bitcoin’s public blockchain.
What does a block reveal?
Selecting a block opens a detailed view of its technical properties.
Block height
The block height is its position in the blockchain. The Genesis Block has height 0, and every accepted block increases the height by one.
Block hash
The block hash is the block’s unique cryptographic fingerprint. Altering protected block data would produce a different hash.
A valid block hash must also satisfy the Proof-of-Work target defined by the Bitcoin network.
Previous block hash
Each block header contains the hash of its predecessor. These references connect the blocks and make the history a chain.
Changing an older block would also change its hash, breaking the connection to the blocks that follow it.
Merkle root
The Merkle root is a single hash representing all transactions contained in a block.
It allows transaction data to be verified efficiently without treating the list of transactions as one enormous value.
Nonce, bits, and difficulty
These values are part of Bitcoin’s mining process.
Miners repeatedly modify block data — including the nonce — while searching for a hash below the current target. The difficulty expresses how demanding that search is relative to Bitcoin’s original difficulty.
Size, weight, and virtual size
A block can be measured in several ways:
- Size describes its serialized data.
- Weight applies Bitcoin’s SegWit weighting rules.
- Virtual size represents weight divided by four.
- Block fill shows how much of the available capacity is being used. Together, these values show how much transaction data a block carries and how close it is to Bitcoin’s capacity limit.
Blocks do not arrive every ten minutes
Bitcoin targets an average block interval of approximately ten minutes, but individual blocks do not follow a fixed schedule.
One block may appear only seconds after its predecessor. Another may take considerably longer.
Bitcoin Block Monitor displays the interval for the selected block, making this variation immediately visible.
The ten-minute figure is a long-term average — not a countdown timer for the next block.
Follow the money in Block Economics
Every valid block begins with a special coinbase transaction. It creates the current block subsidy and assigns the collected transaction fees to the miner.
The app separates these values into a compact Block Economics section:
- Reward: The total amount claimed by the miner.
- Subsidy: Newly created Bitcoin.
- Total fees: The combined fees from transactions in the block.
- Average fee: The mean absolute fee per transaction.
- Average fee rate: Fees in relation to virtual transaction size.
- Mining pool: The pool associated with the block when it can be identified. This makes an important distinction visible:
The block reward is not the same as the subsidy. It consists of the subsidy plus transaction fees.
Looking at blocks from different eras also shows how Bitcoin’s economic model changes as the subsidy is reduced.
Find your own Bitcoin transaction
If you have made a Bitcoin transaction, copy its transaction ID — commonly called a TXID — and paste it into the search field.
Bitcoin Block Monitor determines which block contains the transaction, moves directly to that block, and marks the search result with a green border.
You can then examine:
- when the block was mined,
- how many transactions it contains,
- how full it was,
- which mining pool produced it,
- how many confirmations it has accumulated,
- where it appears in Bitcoin’s history. The app never needs access to your wallet. A TXID is public information and can only be used to look up the corresponding public transaction.
Current Bitcoin exchange rates at a glance
The toolbar displays the current Bitcoin price in euros and US dollars.
These values provide useful context for the Bitcoin amounts shown in historical and current blocks. They are not used to suggest trades or estimate historical fiat values.
A block mined in 2009 may have created 50 BTC, but applying today’s exchange rate to that reward does not represent its value at the time.
A focused alternative to a web explorer
A conventional blockchain explorer remains the right tool when you need to inspect every input and output of a transaction, follow addresses, or analyze scripts in detail.
Bitcoin Block Monitor serves a different purpose.
It provides a focused way to:
- browse the chain continuously,
- compare neighboring blocks,
- move through Bitcoin’s history,
- understand block structure,
- inspect mining economics,
- connect a personal transaction with its block. It is less like opening an individual record in a database and more like placing the blockchain beneath a magnifying glass.
Read-only by design
Bitcoin Block Monitor does not contain a wallet and does not manage private keys.
The app:
- cannot send or receive Bitcoin,
- cannot create transactions,
- cannot trade cryptocurrency,
- never asks for a seed phrase,
- only reads publicly accessible blockchain data. That keeps its purpose deliberately simple: exploring and understanding Bitcoin blocks.
A blockchain becomes clearer when you can move through it
Bitcoin has produced a continuous sequence of blocks since January 2009.
Every block reflects a moment in the network’s history: the activity at that time, the mining difficulty, the available subsidy, the fees users paid, and the link to everything that came before it.
Bitcoin Block Monitor turns that history into something you can navigate.
Start with the Genesis Block. Compare early blocks with current ones. Search for your own transaction. Then move one block at a time and see how the Bitcoin blockchain actually developed.
Bitcoin Block Monitor is available for macOS 14 or later.
Download on Mac App Store: https://apps.apple.com/us/app/bitcoin-block-monitor/id6811215679
More information: https://beavertools.app/
More Bitcoin Apps: https://btcminertools.com/
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