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Questions tagged [transaction-metadata]

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

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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.
a_juggler's user avatar
1 vote
1 answer
107 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 ...
Sebpereira's user avatar
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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 ...
ross-spencer's user avatar
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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 ...
RelevantData's user avatar
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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/...
RelevantData's user avatar
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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 ...
KryptoKing's user avatar
2 votes
1 answer
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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 ...
KryptoKing's user avatar
1 vote
2 answers
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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 ...
kannastor's user avatar
1 vote
1 answer
136 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 ...
B Rad C's user avatar
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2 votes
2 answers
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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 ...
Reddspark's user avatar
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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 ...
Fermat's user avatar
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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?
Goodguy Charlie's user avatar
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2 answers
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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 () => ...
Teddy Pender's user avatar
2 votes
1 answer
103 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 ...
KryptoKing's user avatar
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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 ...
Kyle M's user avatar
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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 ...
Henrik Moe's user avatar
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: ...
baocontact's user avatar
4 votes
1 answer
195 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 ...
Fermat's user avatar
  • 1,882
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.
jnprogrammer's user avatar