This change is on the master development code branch and is not expected to be released until Bitcoin Core 0.20.0 sometime in mid-2020. More recent innovations such as Atomic Multipath Payments (AMP) will allow the same invoice to be paid incrementally by multiple HTLCs, so this change makes it possible to independently track either individual HTLCs or the overall invoice. A. Bitcoin uses public-key cryptography, peer-to-peer networking, and proof-of-work to process and verify payments. Myers’s sample implementation works by using the Bitcoin Core functional test framework to simulate payments in an eltoo payment channel. ● Simplified fee bumping for https://youtu.be/sEw876t4feU LN: funds in a payment channel are protected in part by a multisig contract that requires both parties sign any state in which the channel can close.