Bitcoin

Bitcoin is a new electronic payment system that removes the need for third party financial institutions. It speeds up transactions while reducing costs and minimizing the potential for fraud. The name “cryptocurrency” points to how it uses “cryptographic proof” to work, AKA a blockchain.

Bitcoin’s concept was first introduced in 2008 when a person going by the pseudonym Satoshi Nakamoto shared a white paper titled “Bitcoin: A Peer-to-Peer Electronic Cash System.” In January 2009, the Bitcoin blockchain was launched. 

A new electronic payment system called Bitcoin removes the need for third-party financial institutions. It speeds up transactions while reducing costs and fraud-risk. The name “cryptocurrency” points to how it uses “cryptographic proof” to work, AKA a blockchain.   

Bitcoin has a finite supply of 21 million, which is expected to be reached by the year 2140. Currently, 18.8 million are circulating in the market. Note that Bitcoin represents the concept of the network, while bitcoin (lower-case ‘b’) represents the currency.

Bitcoin is one of the most well-known cryptos as it was the first decentralized currency. 

Currently, BTC’s dominance is above 40%. Bitcoin Dominance is a measure of how much of the total market cap of crypto is made up of Bitcoin. Bitcoin’s influence in the crypto ecosystem could be vulnerable to competition as alternative coins grow in popularity and utility.

The following article is adapted from The Block's newsletter, The Daily, which comes out on weekday afternoons.

The Daily: BlackRock's bitcoin ETF posts record outflows, derivatives market forming ‘dangerous' setup, and more

The bond requires overcollateralization by 160%, and will result in liquidation if the value of Bitcoin collateral falls below 130% of the bond's value.

New Hampshire Unveils $100 Million Bitcoin Collateralized Municipal Bond

Bitcoin Magazine Bitcoin Price Slumps to $88,000 Near Seven-Month Low As Crypto Stocks Crash Crypto markets extended their retreat today as the Bitcoin price hovered near a seven-month low at $88,890 — down 4% on the day and trading near the bottom of its weekly range. Bitcoin Price Slumps to $88,000 Near Seven-Month Low As Crypto Stocks Crash Micah Zimmerman.

Bitcoin Price Slumps to $88,000 Near Seven-Month Low As Crypto Stocks Crash

Solana

Ethereum

Bitcoin and Ether ETFs suffered yet another day of outflows, extending their multi-day losing streaks. Solana ETFs once again stood out, pulling in strong inflows despite broader market weakness. Solana Extends Rally as Bitcoin and Ether ETFs Stay Red Tuesday, Nov.

Bitcoin and Ether Outflows Deepen as Solana ETFs See $30 Million Inflow

BlackRock's iShares Bitcoin Trust (IBIT) shed a daily record $523 million in investments on Tuesday, extending a five-day streak of outflows.

BlackRock Bitcoin ETF Posts Record $523 Million Daily Loss as BTC Price Slump Worsens

BlackRock Bitcoin ETF Posts Record $532 Million Daily Loss as BTC Price Slump Worsens

Bitcoin Magazine Brink Funds First Third Party Security Audit of Bitcoin Core By Quarkslab First ever external security audit of Bitcoin Core by Quarkslab, funded by Brink, shows no critical or severe security issues. Brink Funds First Third Party Security Audit of Bitcoin Core By Quarkslab Shinobi.

Brink Funds First Third Party Security Audit of Bitcoin Core By Quarkslab

Bitcoin fell below $90,000, losing 4.2% during early U.S. trading hours on Wednesday, while ether dropped 6% to under $3,000.

Bitcoin Slips Back Below $90K — Crypto Correction Now Ranks Among Worst Since 2017, K33 Says

Analysts warn that pressures around power, software, and hosting could change the economics of Bitcoin mining.

The Biggest Challenges Facing Bitcoin Miners Going Into 2026

Bitcoin's price has taken a hefty knock this week, dragging mining revenue down with it as the price per petahash sinks even deeper than April's slump. Miners are feeling the squeeze from the tight pricing environment and the thin onchain fees tied to newly found block rewards.

Bitcoin Hashprice Hits Record Low as Miners Grapple With Shrinking Margins

Transaction fees currently contribute approximately $300,000 per day to miner revenue, comprising less than 1% of total miner income.

Bitcoin miner fees fall to 12-month low, underscoring long-term reliance on block subsidies

Bitwise Chief Investment Officer Matt Hougan argues that Bitcoin's (CRYPTO: BTC) value stems from the service it provides, secure, decentralized digital wealth storage, rather than profits or physical utility. What Happened: in his latest CIO memo, Hougan explained that Bitcoin lets users store wealth digitally without depending on governments, banks, or intermediaries.

BTC Is Worth $2 Trillion Because 'Bitcoin Is A Service,' Says Bitwise's Matt Hougan

Analysts see a potential short-term rebound, as retail panic selling of Bitcoin, Ethereum, and XRP signals a historical buying opportunity.

Bitcoin, Ethereum and XRP Set for Rebound? Here's What Analysts Think

Bitcoin (CRYPTO: BTC) has slid to $91,000, but on-chain data suggests the decline remains orderly as price moves into a historically strong demand zone. What Happened: Glassnode's latest Bitcoin Market Pulse shows momentum is now deeply oversold, with the 14-day RSI at extreme lows.

Bitcoin Smacked Down To $91,000: Where Do We Go From Here?

Bitcoin Magazine New Hampshire Approves First-Ever $100 Million Bitcoin-Backed Municipal Bond New Hampshire has become the world's first government to approve a $100 million Bitcoin-backed municipal conduit bond, a move greenlit by the state's Business Finance Authority that could usher digital assets into the $140 trillion global debt market. New Hampshire Approves First-Ever $100 Million Bitcoin-Backed Municipal Bond Micah Zimmerman.

New Hampshire Approves First-Ever $100 Million Bitcoin-Backed Municipal Bond

Prediction markets are buzzing as traders on Polymarket and Kalshi lay down odds on where bitcoin may land through 2025, and the numbers paint a far more grounded picture than the moonshot fantasies circulating online. Prediction Markets Show Strong Odds for Bitcoin Re-Capturing Six Figures to End 2025 At 8:30 a.m.

Six-Figure Bitcoin Could Return, Yet Prediction Markets Expect a Tempered 2025 Close

The G-Knot relies on finger vein-scanning technology. Its creators say it's safer, and easier to use, than established hardware wallets.

This New Bitcoin, Crypto Wallet Scans Your Blood Vessels—And Needs Zero Passwords

A record $520 million exited BlackRock's iShares Bitcoin Trust (NASDAQ:IBIT) on Wednesday, signaling institutional confidence has flipped sharply defensive. Massive Outflows Show Investors Cutting Exposure Spot Bitcoin ETF Flows (Source: Coinglass) Spot Bitcoin (CRYPTO: BTC) ETF flows have deteriorated sharply in November, according to Coinglass.

BlackRock's Bitcoin ETF Sheds Record $520 Million: What's Up With IBIT?

Another day, another sideways shuffle in the bitcoin ballroom. Prices are stuck doing the cha-cha between resistance and support zones while technical signals wave a cautious yellow flag from every timeframe. Bitcoin Chart Outlook From the daily chart, it's hard to miss the dramatic descent from the glittering heights of $116,000.

Bitcoin Price Watch: Momentum MIA as $91K Struggles to Impress

SGX Derivatives, the derivatives arm of the Singapore Exchange Group, announced the launch of Bitcoin and Ethereum perpetual futures contracts on November 19, 2025.

Singapore Exchange (SGX) Launches Regulated Bitcoin and Ethereum Perpetual Futures

The BNB Chain sector declined a further 5% this week. Its market capitalization (mcap) fell back to $221.3 billion, effectively retracing four months of growth.

BNB Chain News: Sector Outperforms BTC as Fear Grips the Market

Bitcoin (CRYPTO: BTC) is back under pressure as Bloomberg's Mike McGlone warns the market could unwind all the way to $10,000. McGlone Draws 2018 Comparison McGlone said during a segment on Bloomberg TV on Tuesday that Bitcoin's current structure resembles the major unwinds seen in 2018, when price collapsed from $10,000 to nearly $3,000.

Can Bitcoin Crash To $10,000? Yes, If It Follows This 2018 Pattern, Expert Says

Perpetual futures traders have rapidly added leverage during bitcoin's decline, forming a setup K33 says has preceded further drawdowns.

Bitcoin derivatives market forming ‘dangerous' setup as hopes of a swift bounce fuel rapid leverage climb: K33

Dogecoin

Bitcoin held near $91,000 on Wednesday morning, with $279.3 million in liquidations hitting over 109,000 traders. Spot ETF flows have remained negative, with $372.8 million in Bitcoin outflows and $74.2 million leaving Ethereum products on Tuesday.

Bitcoin, Ethereum, Dogecoin Stall, But XRP Slips 2% As Markets Cool On Wednesday

Investors pulled roughly $523 million from BlackRock's flagship iShares Bitcoin Trust on Tuesday, according to data from Farside Investors, marking the fund's largest single-day withdrawal since its launch.

News for Bitcoin Crypto (BTC)