Questions tagged [transaction-metadata]

Arbitrary data that can be attached to a transaction. The metadata is stored on-chain.

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1 answer
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Metadata Label Registry

Is there an official "label registry" for (transaction) metadata? CIP 10 proposed such a registry, but I can not find it implemented anywhere.
0 votes
2 answers
201 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 () => ...
1 vote
1 answer
101 views

How to format metadata for Lucid?

Our metadata as a CIP 25 looks like this: Pool pm metadata tool We are using Lucid to attach it during transaction building in this way: const filename= "https://arweave.net/" + arweaveId ...
1 vote
1 answer
141 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
2 answers
68 views

Is there a CLI tool to view a single transaction from a Cardano node, e.g. local-cluster or prod?

Cardanoscan is great for testnet/pre-prod/mainnet. There are also some great tools like Oura for viewing transactions as they are happening, but some of the information in the transaction isn't ...
0 votes
1 answer
56 views

What are the values in a Transaction Datum?

Below is a link for the "inspect" window on Cardanoscan. What are the values in the json? (Example: 2486ff67c9772a45ed705adc7266c62ce8e2ad2e61c2656606ba966f) https://cardanoscan.io/...
0 votes
1 answer
126 views

How to decode the datum stored across records in the tx_metadata table for a given tx

For a given tx - where a contract has been used, outputs have been stored in the tx_metadata table - in this case key/value pairs where the values of keys 0 through 10, when appended together to form ...
0 votes
1 answer
39 views

How To Get Transaction Royalityies on Fungable Tokens

I want to make a fungible token (FT) that has a royalty attached (N%). The problem is UTxOs are purely passive so how can I get my N% of the transaction value on P2P transactions using code is law. To ...
2 votes
1 answer
133 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 ...
1 vote
2 answers
69 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 ...
1 vote
1 answer
133 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 ...
2 votes
2 answers
60 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 ...
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2 answers
518 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?
2 votes
1 answer
102 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 ...
3 votes
2 answers
117 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 ...
0 votes
2 answers
70 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 ...
2 votes
1 answer
103 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: ...
4 votes
1 answer
194 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 ...
5 votes
1 answer
84 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.