Lendingblock is an open exchange for borrowing and lending cryptocurrencies and digital assets. It allows borrowers and lenders to enter into fully collateralised crypto vs crypto lending agreements. Lenders can earn incremental interest income on their long term investment in digital assets, while borrowers can use their digital assets as collateral to enable borrowing to support shorter term trading, hedging and working capital needs. Lendingblock is creating a parallel financial service for the crypto economy to securities lending in traditional capital markets, a market that has $2trn of assets on loan and generated $4bn of revenue in 2017. This white paper will be released and extended incrementally in advance of the announcement of the token sale on 9 March, 2018.