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Understanding the persistence of historical block events despite automatic removal by the System pallet in Substrate

In the Substrate documentation, I came across a statement stating that at the beginning of a new block, the System pallet automatically removes all events that were stored from the previous block. ...
the dev's user avatar
  • 477
2 votes
1 answer
89 views

Error calling smart contract with py-substrate-interface

I am using substrate-contracts-node. I've uploaded and instantiated the smart contract. I would like to interact and query the function using py-substrate-interface. However, I ran into an error while ...
BHappy's user avatar
  • 45
0 votes
1 answer
74 views

How to start a local substrate node using python substrate interface

I am using python substrate Interface (https://github.com/polkascan/py-substrate-interface) to interact with the substrate node. How to start my local substrate-node-template using python for ...
Syed Kamran's user avatar
0 votes
1 answer
57 views

Are polkascan and subscan same and synced?

Are polkascan and subscan.polkadot are same because I'm facing an issue that I've generated an address for polkadot by using python and I've pasted the same address on both of these explorers ...
Shahbaz Ali's user avatar
3 votes
1 answer
224 views

How to obtain the staking amount for non-active validators?

Using substrate-interface I'm trying to get the amount of DOT in staking for non-active validators, those that are waiting. I can get the active validators' amount by using the storage_function ...
Saccharo's user avatar
2 votes
1 answer
246 views

How to determine which parameters are required when using substrate.query() to query a storage_function from polkascan's py-substrate-interface?

When querying storage functions using Polkascan's py-substrate-interface how do you figure out which parameters are required? For example, I am trying to discern how much KSM is on Karura via storage ...
olliecorbs's user avatar