Can I see my balance at N-th block?

[username1565]

Hello. Can I see my balances at N-th block? Can you add this ability in future?

[deemru]

The main reason why it is hard, because past states can be reached only with on-the-fly rollbacks from the current state.

So it is hard to implement in common, but it can be done for accounts with not so much transactions.

Will look into it.

[username1565]

I see this site: https://dev.pywaves.org/balances/
is working by "reports-principle".

But I think this can be realized by caching the requests,
if sorting by assets will be available,
then this can be just cached, after request.

For example:
Request: "WavesExplorer, show me all transactions of token X for address ADDRESS".
Response: "blah-blah - all transactions for token X for ADDRESS + blocks".
Then, only blocks and amounts are cached for this token X for this ADDRESS.
And then, there is more easy to get balance for token X for N-th block,
and collect this values for many tokens.
Else, if this balances was not been requested, then just nulls there or actual balance, according last regularry report.