Joinpools

Also covering Payment pools and Coinpools

Joinpools are a construction that allows multiple users to trustlessly share ownership of one or more UTXOs. When funds are spent, it’s not possible to tell from the block chain which pool member (or members) spent the funds. Joinpools can use presigned transactions or proposed protocol features to ensure each member can unilaterally withdraw their funds from the pool at any time.

This topic description is a stub. We would welcome a pull request providing more background information about the topic.

Optech newsletter and website mentions

2024

• Proposal for fee-dependent timelocks that would make mass joinpool closures more safe
• Proposal for a mass-exit protocol that allows highly efficient payment batching

2023

• Example of using the MATT proposal plus OP_CAT to manage joinpools
• Proposal for Ark, a managed joinpool protocol

2022

• Proposed OP_EVICT opcode to make joinpools more efficient

2021

• Post-taproot soft fork ideas: OP_TAPLEAF_UPDATE_VERIFY
• OP_TAPLEAF_UPDATE_VERIFY proposal to simplify covenant and joinpool implementation

2020

• CoinPool generalized privacy for identifiable onchain protocols

See also

• Coinjoin
• Channel factories

• Covenants

  
  

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