Spot Bitcoin ETF#
Definition:
A fund that lets people invest in Bitcoin through the stock market, without directly owning it.
Example:
Instead of buying Bitcoin yourself, you buy shares of a fund that holds Bitcoin for you.
Post angle:
A Spot Bitcoin ETF lets institutions buy Bitcoin without touching Bitcoin, but the price still moves because the fund is buying real Bitcoin behind the scenes.
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Private Keys vs Seed Phrase#
Definition:
Private key = access to your Bitcoin
Seed phrase = backup that generates all your private keys
Example:
Your seed phrase is like a master password that can recover your entire wallet.
Post angle:
Your seed phrase is your Bitcoin. Lose it = everything’s gone. No reset button.
Self-Custody#
Definition:
Holding your own Bitcoin using your own wallet and private keys (no third party).
Example:
Using a hardware wallet instead of leaving your Bitcoin on Coinbase.
Post angle:
If an exchange goes down, self-custody users are fine. Everyone else is stuck waiting.
Lightning Network ⚡#
Definition:
A faster, cheaper layer built on top of Bitcoin for instant payments.
Example:
Sending someone $2 instantly with almost no fees.
Post angle:
Lightning turns Bitcoin from “digital gold” into actual usable money.
UTXOs#
Definition:
Small chunks of Bitcoin in your wallet that come from past transactions.
Example:
If someone sends you $10 twice, you now have two separate “pieces” of Bitcoin.
Post angle:
Your Bitcoin wallet isn’t one balance—it’s a collection of pieces being combined when you spend.
On-chain vs Off-chain#
Definition:
On-chain = recorded on Bitcoin’s blockchain
Off-chain = handled outside it (like Lightning)
Example:
Buying a coffee via Lightning (off-chain) vs sending BTC directly (on-chain).
Post angle:
On-chain = secure but slower.
Off-chain = fast but relies on layers like Lightning.
Hash Rate#
Definition:
The total computing power securing the Bitcoin network.
Example:
More miners joining = higher hash rate = harder to attack Bitcoin.
Post angle:
Rising hash rate means Bitcoin is becoming more secure, not just more popular.
Halving#
Definition:
An event every 4 years where new Bitcoin supply gets cut in half.
Example:
Miners used to earn 6.25 BTC per block → now 3.125 BTC.
Post angle:
The halving doesn’t pump price instantly—it slowly reduces new supply over time.
Bitcoin Dominance#
Definition:
Bitcoin’s share of the total crypto market.
Example:
If Bitcoin dominance is 55%, it holds 55% of the entire crypto market value.
Post angle:
When dominance rises, money is flowing into Bitcoin, not altcoins.
Layer 2's on Bitcoin#
Definition:
Technologies built on top of Bitcoin to improve speed and scalability.
Example:
Lightning Network is a Layer 2.
Post angle:
Bitcoin doesn’t scale by changing its base layer, it scales by building on top of it.
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