17 min

Chaincode Decoded: The UTXO Set - Episode 5 The Chaincode Podcast

    • Technology

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.

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.

17 min

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