Of course you can pay for each new log entry using crypto tokens, but you don't have to.
You can use an open source version of AOL (Append-Only Log) SW for free, alternatively you can use a managed cloud version, but there you will have to pay with something called USD which is a social construct 1:1 pegged to a crypto-tokens like Tether USDT, MakerDAO DAI, and other so called "stablecoins" ;)
You can use an open source version of AOL (Append-Only Log) SW for free, alternatively you can use a managed cloud version, but there you will have to pay with something called USD which is a social construct 1:1 pegged to a crypto-tokens like Tether USDT, MakerDAO DAI, and other so called "stablecoins" ;)