new every day
Bitcoin today
One page for everything that changes daily: your question of the day out of 111, what the network actually did this week, and alerts you set yourself. No opinions, no price predictions, only what you can verify yourself.
- lessons
- 55
- quiz questions
- 952
- glossary terms
- 26
- labs
- 6
Question of the day
Everyone gets the same question today. Answering keeps your streak alive. No account needed, everything stays in your own browser.
What the network did this week
Not a newsletter full of opinions: this recap is assembled straight from mainnet, blocks, transactions per block, fees, difficulty and hashrate. So it changes on its own.
Live pulse
Countdown to the halving, how busy blockspace is, and the latest blocks as they arrive.
Next halving
estimate…
Block 210,000 · 210,000 blocks to go · subsidy drops from 50.000 to 25.000 BTC.
Computed at 10 minutes per block on average; the real date moves with hashrate.
Fee traffic light
…
Loading rates…
Live via mempool.space, refreshed every minute.
Latest blocks
live- blocks
- 0
- transactions
- 0
- fees
- 0.000 BTC
- avg block time
- 0.0 min
Summed over the last 0 blocks (±0.0 hours), live via mempool.space.
Let me know
Choose what you want a notification for: low transaction fees, an approaching difficulty retarget, a new block, or a nudge to answer your question of the day.
Notifications in your browser
No email address, no account, no tracking: your preferences live in this browser only, and notifications come from your own device while the site is open.
What should we tell you about?
Streak reminder
One nudge a day to answer the question of the day, as long as it is still open.
Warn me when fees are low
A notification when the half-hour rate drops below your threshold. Useful if a transaction can wait.
Difficulty retarget
A notification when the next retarget gets close, with the current estimated change.
Every new block
For the curious: a notification as soon as a block is added. Roughly one every ten minutes.
Notifications work while this site is open in a tab. Close everything and they stop, and nothing about you is stored outside this browser.
Your progress
- Answer the question of the dayOne sourced question, drawn from the lessons.
- Finish: What happens after all bitcoin is issued?Around the year 2140, block subsidies end and miners will rely entirely on transaction fees, an outcome the whitepaper anticipated but whose long-run dynamics remain genuinely debated.
- Look at the live networkReal blocks, real mempool, real fees, straight from Bitcoin mainnet.
New tasks every day at 00:00 UTC. Everything stays in your own browser.
learning streak
3 more day(s) to the 3-day milestone.
Nothing today yet, one action keeps the streak alive.
Season of the machine
Blocks, proof of work, nodes, the mempool and fees, how the network actually runs.
0 / 11 lessons · ends 14 Sept 2026, 00:00
- How Bitcoin works
your next step
Why money exists
Money is not wealth. It is the tool that lets strangers cooperate without keeping score of every favour.
Your numbers
- streak
- 0
- xp
- 0
- lessons
- 0/55
- correct answers
- 0
Your streak continues as long as you do something each day: read a lesson, take a quiz or answer this question.
The image is generated in your own browser, nothing is uploaded.
Badges
Study milestones, not rewards with any monetary value.
- First principles
Completed your first lesson.
1 to go
- Building a base
Completed three lessons.
3 to go
- Curriculum complete
Completed every lesson currently published.
55 to go
- Checked yourself
Finished your first quiz.
1 to go
- Don't trust, verify
Scored full marks on a quiz.
1 to go