⚡ BTC Paper Lab← BizTechHarbor

Bitcoin prediction monitor

Live BTC spot reference + manual prediction-contract paper trading. No real orders.

BTC/USD · Coinbase spot

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Paper cash

$100.00

Open position: none

Spot price history

Spot prices are not Coinbase prediction settlement prices.

15-minute contract — manual input

Enter the actual Coinbase executable prices. Displayed percentages and multipliers may differ from bid/ask quotes.

Contract expiration (local time)

Countdown / status

Set expiration

Side

Target BTC price ($)

Entry ask (cents)

Contracts

Estimated fees ($ per transaction)

Current sell bid (cents)

Automatic official settlement verification is not connected. At expiry, confirm the official Coinbase result manually. Spot price alone cannot determine the outcome.

No position open. Enter actual contract details before paper buying.

Trade history

Time	Side	Entry	Exit	Net P/L