Abstract: A system receives a speech of a user that indicates a request. The system extracts a plurality of voice features from the speech. The system converts the speech into a plurality of binary digits. The system determines a first voice feature constant value associated with a first voice feature, where the first voice feature constant value is an average of the first voice feature. The system determines a second voice feature constant value associated with the second voice feature, where the second voice feature constant value is an average of the second voice feature. The system encrypts the plurality of binary digits using the first and second voice feature constant values, where the encrypted plurality of binary digits corresponds to a voice-based hash value. The system generates a new block in a blockchain network using the voice-based hash value.

Abstract: A system for resolving exceptions in requests determines that a request comprises an exception. The exception impeded processing the request. The system generates a block in a blockchain network. Based on the stored details in the block, the type of exception is identified. Accordingly, the block is segregated for exception processing based on its exception type. The system stores the exception in the block. The system compares the request with user information previously provided by the user. The system determines a similarity score between the request and the user information. The system compares the similarity score with a threshold percentage. In response to determining that the similarity score exceeds the threshold percentage, the system determines that the exception can be resolved and resolves the exception.

Abstract: A universal remote control establishes a new transmitter identifier when programmed to a particular rolling code scheme by an existing transmitter. During programming, the universal remote control receives at least one activation signal transmitted from the existing transmitter. The activation signal includes an existing transmitter identifier. The activation signal is examined to determine which of a plurality of rolling code schemes was used by the existing transmitter to generate the received activation signal. The new transmitter identifier, different from the existing transmitter identifier, is determined based on the rolling code scheme. Subsequently, when an activation input is received, the universal remote control generates and transmits a new activation signal including the new transmitter identifier.