Home < Bitcoin Core Dev Tech < Bitcoin Core Dev Tech 2024 (Apr) < Weak Blocks

Weak Blocks

Date: April 8, 2024

Tags: Bitcoin core, Mining

Weak blocks: propagate stuff with low PoW as you are building it

  • use cases / why you wouldn’t hear of stuff
    • nonstandard to you
    • somehow didn’t propagate to you
    • miner’s prioritisetransaction stuff with no fees
  • why is this coming up now?
    • more mempool heterogeneity
    • “accelerate nonstandard transactions” services
  • poc code: submits to mempool, rejected ones are stored in separate cache

Questions

  • why would a miner do this? (similar to compact blocks?)
  • add to mempool?
  • what if invalid/nonstandard?
  • good for fee estimation
  • why didn’t we do weak blocks before, years ago?
    • some of it was pre-compact blocks