This is our first Chaincode Decoded Podcast. In this new podcast format, we'll dive into the details of a concept we've talked about on previous shows. No guests, no news, just Jonas and John talking about Bitcoin. A podcast by Bitcoin nerds for Bitcoin nerds. In the first episode, we talk about the UTXO set. We'd love to know what you think! Ultraprune - episode 1 (1:20) Assume UTXO - episode 4 (1:28) The cache layer (8:02) Dbcache parameter (9:48)   - John talks about latency comparisons on a human scale. (Note: He incorrectly says that 1 second for RAM access equates to "months or years" for disk access. Actually 4 minutes for RAM access equates to 1-9 months for disk access.) Different ideas on how to keep track of the UTXO set (11:29)   - utreexo (13:48) What’s the future of the size of the UTXO set? (13:54) UTXO consolidation (15:02) UTXO selection (16:48) Murch’s thesis on coin selection Branch and bound H/T to Amiti for the idea of the format. Thanks as always to Matthew Zipkin for the sound engineering.