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Implementation of the Hydra Head protocol

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### Why Users should be able to tell whether two nodes are able to communicate before opening a Head (i.e. spending ADAs to post transactions on-chain) ### What Make the...

network
task
ux
L2

In a perfect world, the website workflow would be transparent but it has consumed time lately. I can see the following issues: * Building the website is super slow: +...

red bin

What is a `seenSnapshot`? In particular, for the `RequestedSnapshot` case, shouldn't the `seenSnapshot` be the last snapshot that we know of, which would be the requested? On master, the `seenSnapshot`...

red bin

## Why We want Hydra Heads to be safe to use. This means that we can always abort initialization of a Hydra Head and no already committed funds can "get...

L1
:thought_balloon: idea
feedback needed

### Why In the current version of the protocol, each transaction is submitted to the Head and included in a snapshot and therefore approved and signed individually. This can be...

:thought_balloon: idea

## Why We are currently specifying the actual protocol we implemented (#448) and update the security properties and pen&paper proofs similar to the original [research work](https://eprint.iacr.org/2020/299.pdf). To gain confidence that...

:thought_balloon: idea

## Why As a client of a hydra head, imagine I don't trust the hydra-node operator to sign the snapshot of the head (I should say that I don't trust...

:thought_balloon: idea

--- * [x] CHANGELOG updated or not needed * [x] Documentation updated or not needed * [x] Haddocks updated or not needed * [x] No new TODOs introduced or explained...

Updates cardano-node to 8.11 and cardano-api to 8.46. --- * [x] CHANGELOG updated or not needed * [x] Documentation updated or not needed * [x] Haddocks updated or not needed...

--- * [x] CHANGELOG updated or not needed * [x] Documentation updated or not needed * [x] Haddocks updated or not needed * [x] No new TODOs introduced or explained...