Questions tagged [transaction-metadata]
The transaction-metadata tag has no usage guidance.
14
questions
2
votes
1
answer
27
views
How can I make QR codes that work with wallets like nami?
Im making payment gateways for crypto on non-web3 infrastucher. One of the ways I'm doing this is by making qr codes that after being scanned with a wallet fill in the transaction i.e. the amount of ...
- 343
1
vote
2
answers
51
views
How can I allow users to update a public array of data based on whether they own a token or not?
I want to construct public lists that can be altered by people who own a specific token.
Is there a way I can group data together into an array like structure and allow users to append to it?
I ...
- 51
1
vote
1
answer
30
views
Metadata transactions / eUTOX TTL / locking up ADA
I'm following this guide on metadata transactions with the cardano wallet server. My goal is to prove the existence of a given IPFS hash at a certain point in time. I don't need to send or receive ADA ...
- 111
2
votes
2
answers
42
views
Understanding this transaction - why isn't it spending the full amount?
I'm doing some analysis on Db-sync and I came across a situation where it appeared the full EUTXO at an address was not being spent so wanted to see what I was misunderstanding.
Here is the first ...
- 223
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
...
- 803
0
votes
2
answers
106
views
Is there a 'Cardano Naming Service' available?
Is there any services like ENS (Ethereum Naming Service) for Cardano available now?
If no, how difficult it is to come up with one?
- 95
0
votes
1
answer
53
views
Submitting Transaction with CSL Metadata Isn't Showing
I've forked a dApp Connector I found on Github and I'm trying to add some transaction metadata to the ADA transaction it builds. This is what I currently have:
buildSendADATransaction = async () => ...
2
votes
1
answer
54
views
How to retrieve an addresses transaction history inside a plutus contract
I am trying to implement so logic to ensure smart contract (SC) validation upon certain conditions - which are derived from the end-users transaction history.
If I parameterise the SC and take the ...
- 343
0
votes
2
answers
48
views
How to Remove Burned NFTs from SQL Output
I am querying the Cardano Postgres DB and can't figure out how to remove NFTs (multi-assets) that have been burned. In the SQL query below, I am selecting the mint transactions for an asset ...
- 1
3
votes
2
answers
78
views
Is there a publicly available Cardano API with pre-indexed blockchain data?
I'm looking for a public API that has idempotent endpoints that can be used to query for transaction data for a given address. Specifically, I'm looking for reward payout data. Does this exist in this ...
- 41
0
votes
0
answers
45
views
Cardano Wallet AP Adding Meta Data to transaction Using C#
I am trying to add meta data in transaction using Cardano Wallet API from C# program. But i am not able to model Json format for meta data to equivalent C# class model and due to this i am getting bad ...
2
votes
1
answer
66
views
Store data in Tx Metadata on Cardano
I would like to notarize some data (like document signatures for example) of less than 500KB on the blockchain and for that I thought to use the Metadata field of a transaction.
So I have 2 questions:
...
- 559
4
votes
1
answer
136
views
How to handle datum in a decentralized way?
What is the best practice of storing the local state of an UTXO to be publicly visible on-chain?
Thinking about how application would function in the future I thought that in a good DeFi ecosystem all ...
- 803
5
votes
1
answer
76
views
Is the metadata limit on testnet transactions the same as mainnet?
I was wondering if there was a difference in the byte limit in metadata added to test-net transactions versus being done on the main-net.
- 774