Unanswered Questions

18 questions with no upvoted or accepted answers
9
votes
0answers
69 views

How to emulate a multi-sig transaction?

I'm working on a Plutus contract that requires multiple signatures to unlock. To do so, I've been referencing the MultiSig.hs sample contract. Now, I'm looking to create traces for testing purposes, ...
7
votes
1answer
44 views

Test-Focused EvaluatorTrace Monad?

Is there infrastructure for writing unit/integration tests for our contracts, without running the full playground? Is there a test-focused EvaluatorTrace monad, for example?
5
votes
1answer
83 views

How can I make an item traceable on the Cardano blockchain?

We would like to be able to identify an item on the blockchain for traceability and assign specific transactions against it to maintain a chain of custody. Can anyone lead me in the direction I need ...
4
votes
1answer
62 views

How can an oracle guarantee certain update rates respectively uptime?

After reading the question General approach for allowing multiple smart contract transactions per block I'm wondering how an oracle can guarantee update rates respectively uptime. If too many ...
4
votes
3answers
96 views

Cardano-Cosmos Bridge

Are there any plans to have a bridge between the Cardano and Cosmos blockchains? Cosmos is working on the gravity-bridge which is a bridge between Ethereum and Cosmos so I assume there must be some ...
3
votes
1answer
45 views

NFT Image not Displaying in Pool.pm after using the 721 Metadata Standard

I am not seeing the image of the NFT I minted a couple of hours ago on pool.pm. I used the standard recommended by Alessandro Konrad and Smaug in https://github.com/Berry-Pool/CIPs/blob/master/CIP-...
3
votes
1answer
30 views

plutus pioneer week01 src code explain

I'm a little confused about the following code(from EnglishAuction.hs): auctionInstance :: Scripts.ScriptInstance Auctioning auctionInstance = Scripts.validator @Auctioning $$(PlutusTx.compile [|| ...
3
votes
0answers
41 views

Confused by compilation message in plutus playground (week 5 pioneer program)

This is part of my attempt at solving the first homework assignment of week 5 in the plutus pioneer program. The rest of the unmodified file can be found here. {-# INLINABLE mkPolicy #-} -- This ...
2
votes
0answers
23 views

Why does my test of Plutus contract crash?

I tried to equip the EnglishAuction.hs contract from Plutus Pioneer Program week 01 with test routine designed according to what Lars presented in later lectures: doTest :: IO() doTest = ...
2
votes
0answers
54 views

Using Plutus PAB for development instead of Playground

trying to migrate away from the playground and seems like PAB is the way to go. The plutus starter repository orignally seems to be the best place to start but it seems to be outdated (i.e. still ...
2
votes
0answers
23 views

Not in scope: data constructor ‘PayToPubKey’ - Fixing the Week 1 Pioneers Exercise

So in week 3 of the Plutus Pioneers program, the Plutus build changed which meant code in weeks 1 and 2 would no longer work. From what I can find, no one has published an updated set of code for ...
2
votes
2answers
291 views

Does ADA have any credit features built into it?

Are there any feature of Cardano ADA or its ecosystem that make borrowing against ADA held easier or better than other cryptocurrencies? Will all credit require that an application be developed to ...
1
vote
0answers
11 views

Failed to build eventful-sql-common-0.2.0

For lecture 10 of plutus pioneering program, we had to run cabal run uniswap-pab to create the contract IDs. I got this - plutus-pioneer-program-week10-0.1.0.0 (exe:uniswap-pab) (first run) Starting ...
1
vote
0answers
10 views

Error running cardano-db-sync in docker-compose file as devcontainer

I have a docker-compose.yml file which I use as a devcontainer for VSCode. Part of my application requires access to cardano-db-sync so that I can query the database for transaction information. I am ...
1
vote
0answers
23 views

Writing basic validator scripts

I need someone to explain to me line by line. The code is from plutu tutorials. https://docs.cardano.org/projects/plutus/en/latest/plutus/tutorials/basic-validators.html All the code in that page I ...

15 30 50 per page