Questions tagged [ledger]

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4 votes
3 answers
1k views

What are input endorsers and how do they make Cardano more scalable?

Charles Hoskinson talked about input endorsers in a recent livestream and said they could improve the throughput of the base ledger by a factor of 20 to 40. What are input endorsers and how do they ...
2 votes
2 answers
973 views

How to move Daedalus's blockchain data folder out of AppData?

I'm a newbie with Cardano. Anyone can tell me how to move the Daedalus blockchain data folder from AppData to another drive? I want to keep my C-drive's space by moving DB to another drive.
1 vote
0 answers
22 views

How to Count plutus transactions?

i'm connected to the cardano-db-sync, someone knows how to count the ammout of transactions that use plutus script? i'm using two methods here select block.epoch_no, count(distinct tx.id) as ...
1 vote
1 answer
33 views

Question about Yoroi and Ledger (restore security)

I'm writing today because I have read some issues about Yoroi in the reddit of Cardano. It seems that many people have problems when they want to restore their account. Some of them have lost their ...
1 vote
1 answer
17 views

How to use plutus script withness in other plutus script

How can we reference the use of other scripts in a plutus validator?. Wat I was trying to making is an validator that only validates if an other predetermined plutus scripts also validates in the same ...
1 vote
0 answers
37 views

How is metadata typed on the blockchain

I am reading through the haddock documentation to find the way metadata is attached to a transaction. In this documentation (1) we have data Blockchain = [Block] data Block = [OnChainTx] Where and ...
1 vote
1 answer
45 views

Mainnet genesis block output off by 1,000,000 Lovelace + what is the test Ada from mainnet genesis?

I have been studying utxos on the mainnet and have run into some interesting inconsistencies. If you run this query against cardano-db-sync's cexplorer database: select sum(value) from block inner ...
0 votes
1 answer
20 views

Is Ed25519 is EUF-CMA secure?

Is the signature scheme of shelley (Ed25519) is EUF-CMA secure? The Existential Unforgeability under Chosen Message Attack experiment works like this: The challenger generates a valid keypair (pk, ...
0 votes
0 answers
12 views

Specs for local-state queries

Does anyone know where I can find on-the-wire specs / cddl for the ledger-specific payloads of the local-state queries? I have the specs for the top-level state-machine messages of the polymorphic ...
0 votes
3 answers
95 views

Yoroi and Ledger nano S seed phrase

I'm writting you today because I've a question about seed phrase. I'm a big fan of the cardano project (especially the vision) but sometimes I can be lost with the tech! To make it simple, I have a ...
0 votes
2 answers
45 views

InvalidWitnessesUTXO

Some transactions I’ve been creating are throwing an InvalidWitnessesUTXO error. Appears to be happening to some specific inputs, and any transaction that includes it fails with this same error. By ...
1 vote
1 answer
155 views

How does ledger generate the public keys?

How does the ledger HW wallet generate the public keys it exports to multi-account wallets like Nami/Typhon? Based on this post by them, it sounds like it might be: Parent private key is derived from ...
1 vote
1 answer
30 views

Where to find the latest repo Ledger.Constraints?

Revisiting Plutus pioneer code, I see Ledger-related code e.g. ScriptContext Plutus.V1.Ledger.Contexts or Interval Plutus.V1.Ledger.Interval. Is there a github repo equivalent for Ledger Constraints? ...
9 votes
3 answers
361 views

What is the maximum number of contracts Cardano can store?

I see Ethereum (ETH) can store 2256 smart contracts, so is there any description about this for Cardano, i.e. how many contracts can Cardano store?
0 votes
2 answers
250 views

Yoroi from Daedalus and Ledger nano

I'm sorry if this has been answered elsewhere, I couldn't find it specifically. If I have been using Daedalus with a Ledger Nano and I download Yoroi on Brave browser (I want to get involved in ...
0 votes
1 answer
68 views

Ledger wallet initial setup in Daedalus versus restore

What are the differences when a brand new Ledger HW wallet is paired with Daedalus as compared to when a Ledger HW wallet is restored? The reason I ask is that after the Ledger is initially ...
8 votes
4 answers
207 views

Will Hydra (or anything else) reduce transaction times for Cardano in the future?

It's been brought to my attention that Hydra will offer all the scaling necessary but will it also make the blockchain faster? Is it likely Cardano will ever reach an under 10 second time which could ...
2 votes
1 answer
23 views

Is a Ledger Live Native ADA App with Staking and Voting Functionality in Development?

Is a Ledger Live native ADA app with staking and voting functionality in development? If so is there any place to check periodically for road map updates? I believe IOG has a team that works with ...
0 votes
0 answers
17 views

Back Cardano Blockchain

I wanted to make a backup of the Cardano DB for a faster restoration in the future. Should I make a backup of all the folder DB or just the folder ledger ? and when I need to restore should I restore ...
8 votes
2 answers
1k views

Why are staking rewards still coming to my Daedalus wallet when I moved the funds to a hardware wallet?

I recently moved my funds from a Daedalus Wallet that was receiving staking rewards around 18 days ago to a Ledger for cold storage. My staking rewards are still being sent to my previous wallet, is ...
3 votes
1 answer
272 views

Did I just convert my ada to a wrapped/pegged token?

I purchased ada on binance us and for some dumb reason, I used the BEP2 network vs the Cardano network to send my ada on binance us to Daedalus/ledger. It all shows up in Daedalus as ADA but after ...
5 votes
1 answer
86 views

How are staking rewards stored?

In another question Andrew Westberg mentions that staking rewards are not stored as UTxOs to save space on the blockchain. My question is: how exactly are those rewards associated with one's stake ...
7 votes
3 answers
961 views

How will Cardano address the ledger growth problem?

Once the ledger size grows beyond the terabyte magnitude, how will Cardano address this issue? Storing and querying anything that large seems impractical to me.
6 votes
2 answers
742 views

How to restore a wallet with 24 words and passphrase?

The BIP39 standard supports an optional passphrase. Cold wallets such as Ledger wallet support this feature, so you can have your private key additionally to 24 words secured with passphrase. At this ...