orange chainBitcoin blocks, newest at the front · the big one is the chain head
cyan chainsthe same ledger seen by other nodes · every full node holds a copy
tree inside a blockmerkle tree · every tx hashed pairwise up to one root in the 80-byte header
prev_hash →each header commits to the hash of the block before it · that is the chain
particle cloudmempool · unconfirmed txs streaming into the next block, sorted by feerate
green · amber · red chipsfeerate tiers from the live fee estimate · next block · ~1 h · waiting
rose ringdifficulty retarget · every 2016 blocks the target adjusts toward 10 min/block
red side blockstale block · valid, mined, but lost the race · its work is orphaned
golden arcsLightning channels · off-chain payments settled by on-chain txs
cyan-edged front blockfresh coinbase · reward is locked for 100 confirmations
panels marked live or real use data from mempool.space, loaded once and cached for 10 minutes · everything else is synthetic but structurally accurate.