I've been asked about this several times, so here's one answer for everyone.
PAXG is an ERC-20 token on Ethereum. On-chain transfers also require ETH to pay for gas.
The difference between holding gold tokens and physical gold is that tokens can be transferred 24/7 and held in small amounts, but they add an extra layer of trust in the issuer.
$PAXG Each token represents one troy ounce of physical gold stored in a London vault.
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Markets change quickly, so make your own informed decisions.