Why does the backlog change so fast?

Because it is a queue with bursty arrivals and lumpy service. Transactions arrive continuously but are only cleared when a block is found, so the count sawtooths — building for ten minutes, dropping sharply, building again.

Other nodes this provider's node is connected to. Bitcoin has no central server; every node gossips transactions and blocks to its peers, and the count is a rough measure of how well connected the network is.

Yes. It comes from BlockCypher's public chain endpoint, key-free. Nothing is invented or simulated, and if the source cannot be reached the saver reports that instead of drawing something plausible.

Does it cost anything or need an account?

No. Every screensaver here is free, runs in the browser and needs no sign-up. This one uses a public API that requires no key.

Unconfirmed Screensaver

The Unconfirmed screensaver shows Bitcoin's operational counters side by side: block height, the number of unconfirmed transactions, peers connected and BlockCypher's high, medium and low fee estimates. It runs in the browser with nothing to install; press ESC to exit.

How the Unconfirmed screensaver works

The saver reads BlockCypher's public chain endpoint, key-free.

No account and no key: the request goes straight from your browser, or from this site's own refreshed copy of the feed where the source does not permit browser access.

Values are drawn on a canvas that resizes with the window, so it works on a laptop or a wall display.

If the source is unreachable the saver says so on screen rather than showing stale numbers as though they were current.

A worked example

Six labelled bars. Height climbs by one roughly every ten minutes and never falls. The unconfirmed count is the volatile one, swinging by thousands within an hour as fee pressure builds and a block clears it. The three fee tiers beneath show the spread between paying for speed and paying for patience.

Settings & tips

Accent and Background recolour the display without changing the data.
Add it to a Multi-view grid to watch it alongside other live savers.
Press ESC at any time to leave fullscreen.

Frequently asked questions

Why does the backlog change so fast?: Because it is a queue with bursty arrivals and lumpy service. Transactions arrive continuously but are only cleared when a block is found, so the count sawtooths — building for ten minutes, dropping sharply, building again.
What are peers?: Other nodes this provider's node is connected to. Bitcoin has no central server; every node gossips transactions and blocks to its peers, and the count is a rough measure of how well connected the network is.
Is this real data?: Yes. It comes from BlockCypher's public chain endpoint, key-free. Nothing is invented or simulated, and if the source cannot be reached the saver reports that instead of drawing something plausible.
Does it cost anything or need an account?: No. Every screensaver here is free, runs in the browser and needs no sign-up. This one uses a public API that requires no key.

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