4
votes
Accepted
Node never begins to sync, hangs at certain point
The legacy Cardano testnet has been decommissioned, you need to use preview or preprod.
- 7,269
2
votes
Api for historical USD rates?
Coingecko is what comes to my mind. Checkout https://www.coingecko.com/en/api/documentation -> /coins/{id}/history
- 619
2
votes
Error - Building Cardano Node 1.35.4 in Ubuntu Linux 22.04
I think between CHaP movements and upstream updates the build process has started failing for 1.35.4, they've been fixed since on master branch. But for visibility of those using 1.35.4 to build:
...
- 1,577
2
votes
Failed to build cardano-crypto-wrapper
This is due to use of old forked libsodium dependency. Follow the updated install guide to ensure yourLD_LIBRARY_PATH env var points to the correct build.
If you're using nix, then unset ...
- 1,505
2
votes
Accepted
When Mithril is used to bootstrap a cardano node, does it decrease its size?
"Bootstrap" means starting the node from scratch, and Mithril enables a fast bootstrapping of the Cardano node.
However, the size of the node database does not change: under the hood, the ...
- 61
2
votes
Accepted
Cannot find utxo using cardano-cli on docker cardano-node preprod
That's an old node version that can't cross the Babbage hard fork. Please update to 8.1.2.
- 2,677
1
vote
What means this line of script
The script cannot be used to mint assets once slot 99336691 has passed.
- 1,505
1
vote
Programmatically write and submit a smart contract
You can use plu-ts to create a smart contract in Typescript, and then use Mesh (Web3 SDK) in your React project to interact with the Smart Contract.
- 3,753
1
vote
NFT Minting with cip68 standard
In order to use Mesh for Cip 68 you will need to concat the (hexed)assetname with the correct prefix in order to avoid Mesh's hex conversion on submission.
Here are the correct prexfixes to add to the ...
1
vote
Accepted
Query and extract NFT metadata from a cardano-node instance (without db-sync)
No, the transactional metadata are not part of the ledger state.
- 7,269
1
vote
Accepted
Official IOG Cardano Node Course Documentation Error - Node Won't Start
This appears to be your topology file. You're probably running the p2p enabled config, but using the old topology format. Edit config.json and set "EnableP2P": false, or remove the parameter ...
- 312
1
vote
Successfully built cardano-node 1.35.7 but still getting version cardano-node and cardano-cli 1.35.3
Building the cardano-node and cardano-cli doesn't mean that your service is using it.
To install the new binaries, copy them from inside the git folder to the folder where the cardano-node.service is ...
- 450
1
vote
Successfully built cardano-node 1.35.7 but still getting version cardano-node and cardano-cli 1.35.3
Your link to the "iohk instructions" links to the git repo, so I am not really sure which instructions you are talking about.
Assuming you are on Linux, you can run the command which cardano-...
- 2,415
1
vote
How often do we see chain reorgs in Cardano?
On my cardano-db-sync instance I see a one block reorganisation a couple of times a day. Two block reorgs maybe once a week or month and I have never seen a 3 block reorg. That does not mean they don'...
- 2,415
1
vote
Accepted
What is the purpose of use using Cardano-graphql & hasura in the same stack?
Hasura is a cloud service where you can deploy cardano-graphql in a very easy and straight forward way, since it is oriented to graphql APIs.
So no, you don't need both.
cardano-graphql is very ...
- 1,055
1
vote
Does nmkr.io provide public api?
To figure out if an NFT has been transferred to another wallet, you have to check the transactions the NFT was involved in. You can get that information from the blockchain using for example the koios ...
- 3,753
1
vote
Does nmkr.io provide public api?
You have to register on their site, then create a project. If you have an existing nft project, you'll need the policy keys and a wallet. The items labeled as projectuid and nftuid are custom IDs you ...
- 312
1
vote
Accepted
Given tx hash, get block # and info about block the transaction is in
Using Blockfrost.io API:
For transaction hash dbbf5116280f83bb6d3d117ef0b41ca52b0bb85f417f761bd42d1903286743e6:
You can find the block height:
$ curl -s https://cardano-mainnet.blockfrost.io/api/v0/...
- 7,269
1
vote
Given tx hash, get block # and info about block the transaction is in
This is a relatively simple query against cardano-db-sync.
- 2,415
1
vote
Given tx hash, get block # and info about block the transaction is in
If you looking for a simple web API, the most popular choice is Blockfrost:
https://docs.blockfrost.io/#tag/Cardano-Blocks/paths/~1blocks~1%7Bhash_or_number%7D/get
https://docs.blockfrost.io/#tag/...
- 244
1
vote
Cardano-Node having errors at 84% sync
I don't think it should be possible to fully sync testnet with recent versions of cardano node. There was a divergence in ledger rules last year. For this reason, it is deprecated and no one should be ...
- 1,505
1
vote
Accepted
Error when compiling cardano-node 1.35.5
The solution to this error is to downgrade ghc to version 8.10.7 by running the following commands:
ghcup install ghc 8.10.7
ghcup set ghc 8.10.7
Then, you have to prepare the compilation for that ...
- 1,055
1
vote
cardano-node meaning of inbound outbound connection
In cardano blocks are being pulled via incoming connections. So if you have stake pool, then your relays must have incoming connection for your blocks being populated to the network. Contrary your ...
- 396
1
vote
How can I Stake NFTs In Cardano?
Like Erik mentions, Proof-of-Stake is a consensus algorithm designed to secure the network.
The concept of "staking NFT's" is something that NFT projects use to hype/promote/give usecase to ...
1
vote
How can I Stake NFTs In Cardano?
I am not aware of any staking being available for NFTs on Cardano.
Staking ADA on the Cardano network serves a purpose, it helps secure the Proof-of-Stake network. What purpose would staking NFTs ...
- 2,415
1
vote
Not Able to watch my Cardano faucets when i query the node
First, in order to be able to query your address after you just used the faucet, the node must be in sync (100%). The version 1.35.4 is correct, it is the only one that will sync your node to 100%.
...
- 1,245
Only top scored, non community-wiki answers of a minimum length are eligible