<p>Can they do it? Or they "talk" to a full node for that purpose and are used only for mining purposes?</p>

<p>Thanks in advance for your answers.</p>

CC BY-SA 4.0
2019-08-23T06:04:35.917Z
See BIP37: https://github.com/bitcoin/bips/blob/master/bip-0037.mediawiki SPV nodes receive transactions from full nodes that match a filter pattern.
pinhead
CC BY-SA 4.0
2019-08-23T12:12:16.053Z
And how do they calculate balances? I read what you posted and I can't understand a word.
evannemo
CC BY-SA 4.0
2019-08-23T13:41:07.160Z
Possible duplicate of [What is an SPV client?](https://bitcoin.stackexchange.com/questions/4649/what-is-an-spv-client). See [How is a wallet's balance computed](https://bitcoin.stackexchange.com/questions/22997/how-is-a-wallets-balance-computed). Answers to your other questions are: Yes, Yes, No.
RedGrittyBrick
<wallet><nodes><balance><spv>
How do lightweight nodes and SPV wallets calculate balances?
evannemo
# How do lightweight nodes and SPV wallets calculate balances?

(Asked by: username_0 on 2019-08-23)

Can they do it? Or they "talk" to a full node for that purpose and are used only for mining purposes?

Thanks in advance for your answers.

**Tags:** wallet, nodes, balance, spv

> **Comments:**
> **username_1**: See BIP37: https://github.com/bitcoin/bips/blob/master/bip-0037.mediawiki SPV nodes receive transactions from full nodes that match a filter pattern.  
> **username_0**: And how do they calculate balances? I read what you posted and I can't understand a word.  
> **username_2**: Possible duplicate of [What is an SPV client?](https://bitcoin.stackexchange.com/questions/4649/what-is-an-spv-client). See [How is a wallet's balance computed](https://bitcoin.stackexchange.com/questions/22997/how-is-a-wallets-balance-computed). Answers to your other questions are: Yes, Yes, No.  

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