Golden Finance reported that the digital asset bank group Sygnum, on behalf of its client Matter Labs, invested $50 million in Fidelity's Institutional Liquidity Fund (ILF). Sygnum is tokenizing Matter Labs' $50 million reserve funds onto the zkSync blockchain. The security tokens issued by Sygnum act as on-chain representations of units in Fidelity International's $6.9 billion ILF to generate secure and transparent "reserve proofs."