The deal is part of Overstock’s plan to exit its blockchain-related investments.
On the Overstock-owned platform, TokenSoft customers will be able issue security tokens that retail and accredited investors can trade.
“We remain bullish on blockchain technology but are changing the way we interact with these asset," said CEO Jonathan Johnson.
The comments come days before a ballot count marred in uncertainty.
Medici Ventures has completed a third equity purchase in Barbados-based Bitt, bringing it a controlling interest in the blockchain firm.
Bug bounty platform HackerOne severed ties with Medici Ventures-backed Voatz, the blockchain-based mobile voting app for breach of partnership standards.
GrainChain, a blockchain platform for tracing commodities, raised $8.2 million from Medici and Eden Block.
Overstock CEO and Medici Ventures President Jonathan Johnson believes crypto investments are finally ready to enter the real world.
Overstock's Medici Ventures has invested in blockchain ID firm Evernym in a $2 million seed round for potential equity.
In the first investor call following the abrupt resignation of founder Patrick Byrne, Overstock provided a number of updates.
Overstock.com CEO Patrick Byrne has resigned from the company after admitting to an affair with Russian agent Maria Butina.
Blockchain-based mobile voting platform Voatz has raised $7 million in a Series A round led by Overstock's Medici Ventures and Techstars.
tZERO plans to launch its own mobile trading app for buying and selling bitcoin and, possibly, ether.
Medici Ventures, the blockchain investment arm of Overstock, has acquired a 5.1 percent equity stake in blockchain banking startup Bankorus.
Overstock's CEO says he expects volumes on the recently launched tZERO platform to soar after the market opens to retail investors in August.