Bitcoin is accepted on Osiris and is the coin to use when a vendor takes only Bitcoin. Its ledger is fully public, so a payment in it leaves a permanent readable trail. Where privacy matters, the explorer points you to Monero instead.
Do not send straight from an identity-checked exchange to the market, because the exchange record ties your name to the deposit. Route through a fresh wallet you control such as Sparrow or Electrum, or swap into Monero first.
Copy the Bitcoin deposit address from your order, send with a fee that confirms in a reasonable window, and wait. Overpaying wastes money and underpaying gets the transaction stuck. The balance credits once confirmations land. See depositing Bitcoin.
