A sidechain is a blockchain you can move bitcoins into and back from, which may have different abilities than the bitcoin blockchain.

The network is a caching layer for bitcoin, which allows instant sending and failover to the normal bitcoin network if something goes wrong.

- 220px Rusty Russell lca2011 2Bcrop - Sidechains and Lightning Networks with Rusty Russell

is an Australian free software programmer and advocate, known for his work on the kernel’s networking subsytem and the Filesystem Hierarchy Standard.


  • What is a sidechain?
  • How do you define a blockchain?
  • What is a micropayment channel?
  • What is a lightning network?
  • How do lightning enable micropayments?
  • How do lightning networks enable purchase of a cup of coffee?
  • How do affect altcoins?


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