The real chain, as it happens. The chord changes when the next block is found, which can take a while.
Every block has its own transmission. It opens with a call sign drawn from its hash, sent in Morse, reads out its number, then signs off. The same block always has the same call sign. Try a birthday, a halving (840000) or genesis (0).
Bitcoin time. Right on your wrist.
It feels every block: a gentle buzz, every ten minutes or so. Hold it up to get paid, on-chain or over Lightning, and feel the sats land. Watch-only by design, so your keys stay yours. No app. No account. No custodian.
BWATCH Radio is free, with no ads and no accounts. If it keeps you company while you work, send some sats. They go straight to the people building the watch.
Each new block is announced the way a numbers station would: three pips, then its height, read in two groups.
Under the static, a faint organ holds the chord the block's hash picked. While it waits, it drifts back through the last eight blocks' chords.
A block takes ten minutes on average but can take forty. The longer none comes, the louder the hiss and the higher the whistle drifts.
Every difficulty adjustment, the station retunes on air and the organ moves to a new key. Every halving drops it an octave, for good. Countdowns to both are read out along the way.
Transactions waiting to be mined crackle on the line. A busy mempool is a storm of static.
No prices anywhere in the music. Blocks and transactions only.