Abstract: A system and method for wallet recovery verification are provided. The system includes a processor of a wallet verifier node connected to an at least one wallet operator entity node and to at least one backup provider entity node; and a memory on which are stored machine-readable instructions that when executed by the processor, cause the processor to: receive, from the at least one wallet operator entity node backup data comprising (X, C, ?), where C is a ciphertext encrypting a secret key of the at least one wallet operator entity node, w is a zero-knowledge proof and X is an address of the wallet being backed up; execute a verification algorithm based on the (X, C, ?), and a public key N received from the at least one backup provider entity node; and derive the address X and verify that a combination of a primary address with a seed produced the derived address.

Abstract: A system for validation of a correct execution of an authorization workflow including a processor of an orchestrator node connected to an at least one client entity node, a verifier entity node and to a plurality of approvers' entity nodes and a memory on which are stored machine-readable instructions that when executed by the processor, cause the processor to: receive, from the at least one client entity node, a blockchain transaction (Tx) execution request comprising the authorization workflow definition; provide the Tx execution request to the verifier entity node configured to execute the authorization workflow; receive a proof of the authorization workflow execution according to the workflow definition from the verifier entity node; provide the proof of the authorization workflow execution to the plurality of approvers' entity nodes; and collect approvals from the plurality of approvers' entity nodes to allow for an execution of the Tx.

Abstract: A system and method for wallet recovery verification are provided. The system includes a processor of a wallet verifier node connected to an at least one wallet operator entity node and to at least one backup provider entity node; and a memory on which are stored machine-readable instructions that when executed by the processor, cause the processor to: receive, from the at least one wallet operator entity node backup data comprising (X, C, ?), where C is a ciphertext encrypting a secret key of the at least one wallet operator entity node, w is a zero-knowledge proof and X is an address of the wallet being backed up; execute a verification algorithm based on the (X, C, ?), and a public key N received from the at least one backup provider entity node; and derive the address X and verify that a combination of a primary address with a seed produced the derived address.

Abstract: A method and system for protecting of digital assets within the blockchain by approval revocations. The method comprises detecting an approval of a transaction by a least one user node connected to the approval node over a blockchain network; generating a revoke transaction comprising un-approval of the transaction; monitoring a smart contract associated with the transaction to determine a risk factor; and responsive to the risk factor exceeding a pre-determined risk level threshold, triggering an execution of the revoke transaction.