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7 votes

What's the difference between sharding & a payment channel, & how does Hydra compare?

First lets imagine a state channel, which is similar to a payment channel, only that in addition to basic transactions, it can contain arbitrary business logic. As you've said, it helps to think of ...
zhekson's user avatar
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5 votes
Accepted

What kind of dapps can scale using hydra?

Keep in mind that Hydra is a whole suite of protocols, some of which are still in the research phase. On Hydra Head specifically, you can think of it as a protocol for creating and maintaining fully ...
zhekson's user avatar
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5 votes
Accepted

Will Hydra protocol implementation require changes in consensus protocol (Ouroboros)?

No. Hydra is a layer-two solution which works "on top of" Cardano. A hydra-node which implements the Hydra Head protocol will run alongside the cardano-node and provide an isomorphic state ...
Sebastian Nagel's user avatar
5 votes
Accepted

When Hydra will be ready for production?

FWIW We created a Github project to serve as our public roadmap: https://github.com/orgs/input-output-hk/projects/21 It does show individual features, in what releases they are planned to be included ...
Sebastian Nagel's user avatar
3 votes

When Hydra will be ready for production?

There is no official roadmap just yet, but we plan to publish it soon. However, don't expect definite deadlines on that, but rather a sequence of features with frequent & incremental releases. ...
Sebastian Nagel's user avatar
3 votes

How can I start a Hydra Node in devnet?

Here you can find the official documentation on Hydra. There is also a demo section where it is explained how to use it
Nic_T2H's user avatar
  • 450
3 votes

Opening Hydra Heads & Other Cost Related Questions

You're technical understanding seems to be quite fine and let me point you to some additional resources / answer your questions: Yes. Opening and closing a Hydra head costs ADA. It depends greatly on ...
Sebastian Nagel's user avatar
3 votes

Speed of Hydra on the main chain vs a Cardano sidechain

Let me try to answer your questions, although it's very dependent on the actual use case on what structure for off-chain processing of these "tens of thousands transactions per second" would ...
Sebastian Nagel's user avatar
2 votes

Unclear error during Plutus ScriptContext construction (force headList [])

The problem was that I was mixing on-chain code written in Plutus V1 with off-chain code that expects Plutus V2. In particular, the off-chain code utilities in the hydra-cardano-api library assume ...
2 votes
Accepted

Does the hydra node automaticly contest an invalid snapshot?

The hydra-node will automatically Contest any transaction it sees on the chain that tries to Close (or Contest!) the head with an invalid or not up-to-date snapshot. There is no need for the operator ...
insitu's user avatar
  • 224
2 votes
Accepted

How can I start a Hydra Node in devnet?

This is how you run hydra-node in Devnet. You need to have Docker installed. Keep in mind that, at the moment, this is just a POC: git clone https://github.com/input-output-hk/hydra-poc cd hydra-poc/...
Falcon Stakepool's user avatar
2 votes

How can I start a Hydra Node in devnet?

You are running with the --help option: 'docker run --rm ghcr.io/input-output-hk/hydra-node --help' This will only ever show you the help information.
MC_Brisbane - JUST Pool's user avatar
2 votes

What do we currently know about the Hydra tail protocol?

There is some information about the Hydra tail protocol on the GitHub repo Wiki Tail In a head, all participants must be online - a symmetric construction. In contrast to that, tails are asymmetric: ...
user142's user avatar
  • 221
1 vote

What do we currently know about the Hydra tail protocol?

We will have a much better sense of the Hydra Tail protocol once the research paper(s) come out. For now, we can infer its functionality based on some of the design patterns of projects currently ...
zhekson's user avatar
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