Abstract: A technique is provided for scalable reconciliation of a plurality of crypto assets between an offline wallet and an online wallet in a blockchain network. The technique includes receiving a request for reconciliation of a plurality of transactions from a trading platform; triggering the blockchain network to generate a smart contract, wherein the smart contract comprises information indicative of a quantity of the plurality of crypto assets to be shifted between the offline wallet and the online wallet; and reconciling the plurality of crypto assets between the offline wallet and the online wallet based on the generated smart contract and a public address, wherein the reconciling comprises transferring by the blockchain network a pre-defined number of a plurality of packets containing at least one of: a first part of a private multi-signature key and a second part of the multi-signature private key.