Deposit from Bitcoin to L2

BRC-21 behaves the same as BRC-20, supporting Bitcoin L1 transfers, but also has a support for depositing into an L2:

TODO: Add full documentation of parameters and link reference implementation repo.

Pseudo Schema

{ 
  "p": "brc-21",
  "op": "l2deposit",
  "l2id": "7"
  "tick": "ordi",
  "amt": "100"
}

This appends the deposit tree using an append only merkle proof.