If I am receiving some small bitcoin donations - 15,000 to 35,000 sats per donation, then how do I know if that donation is from a KYC exchange or a non-KYC exchange?
You can try to find information for addresses of donators.
List of useful Bitcoin block explorershttps://www.walletexplorer.com/https://platform.arkhamintelligence.com/https://bitinfocharts.com/bitcoin/explorer/Does the answer depend on the address of the sender?
It depends on not only addresses of senders but how senders, donators used inputs, outputs for their bitcoin transactions.
General guidelines for sending BTC transactionsDon't send round numbersDon't send round amounts. Instead of sending 0.1 BTC, send 0.10125
Use Bitcoin MixersMixers add an additional layer of privacy to a transaction to avoid exposing user identities.
Avoid reusing walletsDon't send your Bitcoin change to the same address you use for sending bitcoins.
Avoid including many of your addresses in one transactionAny time you can, try not to send BTC from your various Bitcoin addresses.
Avoid using "send everything" optionIf you are withdrawing funds from an exchange, it is okay.
If you're moving funds to another wallet, do not transfer the whole amount to another address. It greatly compromises your privacy.
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