"Polkadot Parachains go live. " December 19, 2021

Today’s blockchain and cryptocurrency news
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Bitcoin is up 1% at $47,271
Ethereum is up .5% at $3,946
and Binance Coin is 1% at $534

Decentraland up 18%

Polkadot Parachains are live.

Sotheby’s picked up 100M this year from NFT sales

Open season on Optimism.

Silverflow closes $17M series A.

• Polkadot (DOT) Parachains Go Live, Capping Yearslong Tech Build for Ambitious Blockchain Project — Ultimately, Polkadot will offer 100 parachain slots
• Payments startup Silverflow closes $17 million round led by Coatue
• Ethereum layer 2 Optimism removes whitelist, opens to all developers
• Sotheby’s netted $100 million from NFT sales in 2021: report