Mini project report implementation rsa algorithm using javaKazi

I am seeking an experienced engineer who can assist me in the design and analysis of a new project. Ideal skills and experience for the job: - Proficiency in AutoCAD for design and analysis - Strong background in engineering, particularly in the area of design and analysis - Excellent problem-solving skills - Ability to work closely with me to understand my vision for the project and bring it to life

I need help showing on the front end of my website on a product a display of options using a shopify app called VO Product options.

I have a Node.js script that I've been using to sort and verify emails. However, there are some issues that I need to be fixed. I'm looking for a professional who can assist me in enhancing the script. Requirements: - The script should be able to validate the existence of email mailboxes without freezing when processing a large volume of emails. - Email verification must be accurate and reliable, and the script should be able to handle a large list of emails efficiently. Key points for the project include: - Implementing a more efficient algorithm to handle large email lists without freezing. - Ensuring that the script provides accurate validation of email mailbox existence. Ideal Skills: - Strong proficiency in Node.js and email verification techniques. ...

...script that can download the complete list of sanctions data from OpenSanctions database. Once the data is obtained, the script needs to perform a comprehensive database search, identify any country-specific sanctions, and provide a detailed report of these connections as well as a option to show a visual mapping. Key Requirements: - Download the complete list of sanctions data from Open Sanctions database - Conduct a thorough database search to identify country-specific sanctions - Create a report summarizing the identified connections The final report should be in an interactive web page format. The visualization should be clear and easy to comprehend, allowing for an intuitive exploration of the connections found. Ideal Skills & Experience: - Proficiency ...

As an environmental consultant focusing on natural habitat preservation, I am seeking a competent freelancer to prepare a biodiversity net gain consultancy report. The aim is to formulate effective strategies for enhancing biodiversity within protected natural habitats. Ideal freelancers for this project are: - Qualified environmental scientists or ecologists. Preferably, with a strong understanding of conservation management strategies. - Those with prior experience in drafting biodiversity net gain reports, particularly related to natural habitat preservation. - An understanding of various habitat types would be beneficial, although not essential as the habitat type hasn't been specified in this instance. Key responsibilities: - Evaluate the current state of biodi...

I require a comprehensive business assessment within the next 10 hours. The assessment should focus on the following areas: - Marketing Strategies - Financial Performance - Operational Effic...Performance - Operational Efficiency Although no specific goals were provided, I am looking for an expert who can critically evaluate these areas and identify potential areas of improvement. Your assessment should provide insights on strengths, weaknesses and potential risks. Please showcase your experience in conducting similar assessments and your understanding of these key aspects of business. Your report should be thorough and well-structured, with clear and actionable recommendations. The ideal candidate should have a background in business analysis, strategy consulting, or financial...

...search report as detailed in the following URL. The freelancer must be experienced in conducting medical literature database searches, compiling results, and writing an academic document following the Vancouver citation style. There's no word limit for the report. URL: Key Points: - The primary objective of this research is to identify and interpret trends in the utilization of diagnostic and therapeutic medical devices in healthcare practices worldwide. Ideal Candidate: - A background in medical research/healthcare analysis would be highly beneficial for this project. - Experience in academic research, especially in the field of medical devices, can provide added advantage. - Proficiency in data analysis and interpretation are essential for this proj...

...bid to significantly improve the customer experience as well as streamline our business systems. You should have: - Outstanding experience and expertise in Odoo implementation and project management. - Proven track record in integrating third-party software and adapting functionalities. - Exceptional familiarity with CRM, Inventory Management, Accounting, and us of Odoo apps to manage food delivery. Key tasks include: 1. Data Migration: -Taking CSV files of my exported sales data from Shopkeep and importing it into Odoo without loss of critical information in order to enable reporting on old sales data. 2. Odoo Implementation: - Doing initial setup for Inventory Management and Accounting, as well as direct to consumer food delivery provided by our own drive...

Hello, This is a $20 project. Looking for a freelancer to develop a python script to retrieve restaurant data from Google Maps using the Maps/Places API. The script should target restaurants that have a phone number and *do not* have a website. The inputs I need to enter are: - Location (latitude and longitude) - Search Radius (in meters) - Ensure the business/place is a restaurant, bakery, etc. Key Data to Retrieve, output in a .CSV: - Business Name - Address - Phone Number - Google Maps URL Thank you, trooper501

I am in need of a skilled AppSheet developer to create a custom app for my small warehouse inventory business. Key Features: - Inventory Tracking: I require a system that will consistently track and update inventory in real-time to ensure accuracy. Other Details: - Products: As a small warehouse, I have less than 50 different types of products. - User Access: The app will not need to support multiple users accessing and updating the inventory simultaneously. Ideal Skills: - Proficient in AppSheet development - Experience in building inventory tracking systems Please respond with your relevant experience and sample work for further consideration.

I need a proficient Xactimate expert to generate detailed and professional-looking reports for insurance claims. Key Requirements: - You should have a solid understanding of Xactimate software and experience in creating reports for insurance purposes. - The reports need to be detailed, with itemized costs and d...descriptions. The ability to include diagrams and photos would be highly beneficial. - You will be provided with the necessary information through document and photo uploads, so make sure you can work with these formats. Please note that the quality and accuracy of the reports are crucial, so attention to detail is a must. The ideal candidate should be able to efficiently create a comprehensive report, making it easy to understand and reference for the insurance claim...

I'm in need of a skilled OpenCV programmer to help me with a bug in my WhatsApp automation script. Here's what you need to know: - The specific issue is that the automation isn't starting as expected. - The script is written in Node.js. - I haven't been able to locate any error messages or logs that might be related to the issue. You should ideally have experience with: - WhatsApp automation - Node.js - OpenCV Your task will be to identify the root cause of the automation failing to start and rectify it.

I'm currently in need of an expert software developer to assist with maintaining and updating existing software initially on a hourly basis but i would consider full time as we build relations. This position requires someone proficient in Java, C#, HTML, CSS, and PHP (codeignitor). Key Responsibilities: - Maintaining and updating the existing software as required - Debugging and troubleshooting issues - Collaborating with other team members Ideal Skills: - Strong proficiency in Java, C#, and PHP - Previous experience in software maintenance and updating - Excellent problem-solving skills - Ability to work full-time and communicate effectively - Experience working in a team environment I'm looking for an individual who is reliable, skilled and able to commit to...

I'm seeking an expert in Python to help me with an Artificial Neural Network (ANN) implementation. Key Responsibilities: - Developing a comprehensive ANN tailored to our specifications. - Ensuring that the ANN is thoroughly trained. Ideal Skills and Experience: - Extensive experience with Python, particularly in the context of AI, neural networks, or machine learning. - Proven track record of successful ANN implementations. - Proficiency in the field of data science is highly advantageous. Please note that a strong grasp of neural networks and machine learning concepts is crucial for this project. Your ability to troubleshoot and debug effectively will be highly valued. Should you choose to bid, please provide examples of your previous work in this area.

I have a project that requires extensive knowledge in Scala Java, focused on analyzing post metrics from social media. Responsibilities include: - Coding in Scala Java to retrieve and analyze social media post metrics - Performing data analysis in order to draw actionable insights The suitable freelancer for this job is someone with previous experience in Scala Java and data analysis, preferably involving social media data. The task requires in-depth knowledge in data sorting and categorization methods and a good understanding of social media platforms.

...designed to resemble Example 1 and Example 2, with the implementation of Tailwind CSS. The final product should include a home page and 5 subpages. Key Requirements: - Design the site to resemble Example 1 and Example 2 - Implement Tailwind CSS throughout the site - Deliver a fully functional, responsive home page - Create 5 distinct, responsive subpages Ideal Skills and Experience: - Strong experience with WordPress - Proficiency in Tailwind CSS - Experience with front-end development - Creative design skills and eye for detail - Responsive design expertise - Good communication and attention to detail Please note that the specific features for the home page have not been determined yet, giving you some creative freedom in the project. I will include specific examples ...

I'm seeking a skilled programmer, proficient in Python, who can develop a trading algorithm according to my exact specifications. The algorithm itself must integrate with the TD Ameritrade platform and take into consideration an array of varying factors such as: - Historical stock prices - Market trends - Earnings reports - The presence of candles twice as large as the previous candle sma cro - Ignoring red and green bars - 8 sma crossing 21 at any time frame - 20 sma crossing 200 at any time frame - 50 sma crossing 200 sma - Double tail bars at any time frame A solid understanding of financial markets as well as a proficiency in developing trading algorithms is necessary. This task is intricate and requires meticulous attention to detail, only experienced developers...

Hi, I am looking for expert to connect SQL database togoogle looker studio so we can analise data and creat reports, it is a long term coopartion. Please provide implementation cost and hourly charge. Best.

I'm seeking an experienced and skilled engineer, data scientist to assist in optimizing the cooling power of a new metamaterial. The project involves algorithm development to achieve our cooling optimization goals. I will forward you a report where they've used Genetic Algorithm method to optimize parameters. She has used four flux theory to predict optical properties for different particle parameters. you should not optimize the reflectance... in your work, you should optimize the cooling power Requirements: Proficiency in MATLAB Strong background in optics, material science, or related fields. Experience with genetic algorithms and parameter optimization techniques. Excellent communication skills and ability to work independently. ...

...primary task is to ensure that new columns added to the database are correctly displayed in the Excel report generated by the application also fix some minor areas that will discuss in detail Key Responsibilities: - Troubleshoot and fix the issue of new columns not being displayed in the Excel report - Ensure that all relevant data is correctly fetched from the SQL Server 2019 database - Implement a seamless solution that does not affect the overall functionality of the application Ideal Skills and Experience: - Strong proficiency in C# programming language - Expert knowledge of SQL Server 2019, including stored procedures and functions - Prior experience with similar tasks involving Excel report generation from SQL data - Excellent problem-solving skills and logi...

I'm seeking a highly skilled cybersecurity expert with a deep understanding and experience in international banking and financial transactions. T...expertise should include: - In-depth knowledge of international banking and financial systems and transactions - Proven experience in cybersecurity assessment, penetration testing, and fraud detection - Specialization in online banking platforms and payment gateways - Strong understanding of network security, data encryption, and user authentication - Excellent communication skills and ability to report findings in a clear and concise manner - Up-to-date on the latest cybersecurity trends and threats in the financial sector. Please provide details of previous relevant work and your approach to addressing the specific security conc...

I need an expert in navigation on Team Tailor who can implement a prompt redirection feature on my website. The following requirements should be met: 1. Redirection: As soon as users land on the particular Team Tailor page, they should be instantly redirected to a specific prod...land on the particular Team Tailor page, they should be instantly redirected to a specific product page on the existing website without any necessary user action. 2. Destination URL: The target of this redirect system is a specific product page URL. The exact URL will be shared during project discussion. The ideal freelancer should be an experienced web developer with expertise in website navigation and redirection. Prior work with Team Tailor would be a bonus. I am looking for a quick and seamless im...

...Android developer to assist with my project. My main focus is on app development, specifically in the context of an existing Java application. Key tasks and features include: - Developing a stable and efficient Android app based on the current Java application - Integrating Firebase as the main backend and database; making efficient use of its real-time database features - Creating robust user profiles functionality - Implementing live in-app chat - Introducing in-app purchases For this task, someone with experience in Java and Firebase is highly preferred. If you have done similar tasks before, please attach your portfolio when bidding. Your ability to produce quality UI design and to debug any issues promptly will make you an ideal candidate for this ...

Technical Requirements Specifications for our Mobile Money Solution 1. Context and Objectives Our goal is to provide subscribers of a mobile phone company with an innovative mobile money solution. This solution will allow users to perform various financial transactions and payment operations from an iOS/Android mobile application. To carry out this project, we are looking for a competent and experienced IT developer company to ensure the development, deployment, and support of the Mobile Money solution. Preliminary and non-definitive mockups of the solution are provided in the appendix to illustrate the functional expectations. 2. Functional Scope The functional scope of the Mobile Money solution must cover at least: - Management of a virtual wallet account per user - Subscription...

I'm looking for a wizard developer who can create an enterprise API. I do not have a preferred programming language, therefore, use the one you find most suitable and efficient. I need the API to include the following features: I am seeking a skilled developer to create a API to act as a third party implementation to serve clients such a service oriented businesses as Massage Therapists for client booking via scheduling calendar of showing available appointments ( this calendar shall also be utilized by the client to create time blocks when required ) in addition require online credit card initial deposits at time of scheduling and final payments featuring Vaulting to retain credit card details for future or ongoing appointments. A feature automation to fwd notifications cl...

I need some help with writing a physics lab report. This will be based on a ultrasonic waves experiment on an attempt to estimate the speed of sound.

...transactions. The primary task is to identify and compile a comprehensive list of all wallets that have received cryptocurrency from specified sources. Responsibilities: - Analyze blockchain transactions from various sources. - Identify and compile a list of wallets that have received cryptocurrency from the specified sources. - Ensure accuracy and completeness of the data. - Provide a detailed report of findings. Requirements: - Proven experience in blockchain analysis and transaction tracking. - Proficiency with blockchain explorers and analysis tools. - Strong analytical skills and attention to detail. - Ability to work independently and meet deadlines. - Excellent communication skills. Preferred Qualifications: - Experience with multiple blockchain platforms. - Knowledge ...

I am in need of a full-fledged web-application that will serve my team and clients effectively. The main goal of this project is to make report generation and client response management more efficient and automated. This will involve integrating cutting-edge technologies such as Chat GPT, Zapier, and advanced AI solutions into the application. Key features: - The web-app should have a well-designed report generation feature. The data should be easy to input, and the application should be able to generate reports in various formats. - There should be a client response management system that is efficient and automated. The system should be able to analyze client responses and provide appropriate automated responses. - The application should integrate a Chatbot powe...

Hello! I need someone who is an expert in web programming with PHP to translate any kind of PDF for free in using PHP. This PDF must not lose its quality. It must remain intact and it must preserve the ORC format, style and all. I want the translation to be exactly like the one from onlinedoctranslator.com. I know you're going to tell me that the Google Translate api isn't free, but you can use this library (link removed) . Then it has to choose the number of pages in the PDF. Even if the PDF is 100 pages or more, it must be able to translate it. It must support encrypted PDFs and PDFs protected by passwords. I will use your code in my site. You can visit it and you'll see that the PDF translation is missing. I've told you everything and I hope you'll give ...

Hello^^^^. I'm using Amazon AWS and would like to request server maintenance. First of all, I would like to ask you to do as much as possible for server security and privacy, such as SSL installation, automatic backup once a day, DDOS attack prevention, system performance optimization, hacking prevention, encryption between data transmissions, real-time monitoring, data recovery, backdoor checking, backdoor checking and deletion of compromised files, attack root identification and blocking, suspicious process occupation identification and recovery, server hacking analysis, server access history tracking, password recovery and complexity setting, virus and malicious software checking,,data leakage prevention.....etc My current monthly budget is about $50, Please send me a prop...

- Implementation of a feature that toggles audio output between Speaker and earphone in a React Webview screen inside a React Native app - The feature should be user-friendly, enabling seamless switching between the two audio outputs Ideal Skills: - Proficiency in React Native and React - Experience with audio output handling in mobile applications - Understanding of Android audio controls and React Native Webview integration If you have the necessary skills and experience, please get in touch.

I'm seeking a skilled Python developer with exceptional capabilities in algorithms and data structures. Your primary task will be to develop an innovative solution for a Disjoint Union Set problem. Key Responsibilities: - Develop a new solution from scratch - Implement a Disjoint Union Set algorithm in Python - Ensure the algorithm is efficient and correct Ideal Skills and Experience: - Proficiency in Python is a must - Deep understanding of algorithms and data structures, specifically Disjoint Union Set - Strong analytical and problem-solving skills I have a code already but npot working but i recommend u start from skratch here is the problem please read it, the problem is tricky As it is the best SHS course, the teacher allowed you to work in groups as big as yo...

I am looking for a researcher to conduct a bibliometric analysis using VOSviewer for a project we have been working on for a while. The project falls within the category of social sciences. We have already gathered the data from WOS and Scopus. What I want is the visualization of this data along with explanations. (Small research database, around 120 articles) Key Responsibilities: - Conducting bibliometric analysis on a specific scientific articles dataset - Identifying and analyzing keyword occurrences within the dataset - Producing a comprehensive report on the keyword trends Ideal Skills: - Proficiency in VosViewer and other bibliometric analysis software - Experience in analyzing and interpreting scientific articles - Strong knowledge of bibliometric ana...

...Collaborate with the design team to create engaging content. - Monitor and report on the performance of marketing campaigns. Target Audience: - Couples getting married. - Event planners. - Local community. Unique Selling Points: - Spacious indoor space. - Beautiful outdoor garden area. Ideal skills: - Proven work experience in digital marketing. - Demonstrable experience leading and managing SEO and social media. - Experience in crafting and implementing successful marketing campaigns. - Excellent analytical and project management skills. - Strong understanding of current online marketing concepts, strategy, and best practices. - Ability to work under pressure and meet deadlines. Please note that this is a long-term project, and I'm looking for someone with...

I am looking for someone experienced in building tool websites with an emphasis on monitoring changes on various websites. The primary function is to detect and report on content changes, with users receiving notification of these adjustments via email & sms alerts. Ideal Requirements: - Proficiency in building tool websites for monitoring purposes. - Knowledge in setting up a system to detect website content changes. - Experience in integrating email alert notifications for users. - Loading Capacity 500+ Websites Searching per Hour - Foresight in creating an interface user-friendly even for non-technical users. This project will require strong analytical skills and a sharp eye for detail. I'm excited to work with someone who understands the critical need for w...

an experienced C++ or Python or Tenserflow or Java or AI (etc.) developer to create a software program for Windows. A skilled developer with expertise in creating a dynamically pixelating images (not simple machine or grid pixelation). The program should have the following functionalities: - dynamically pixelate any imported image into mathematical, non-mathematical or custom shapes in various styles with user adjustable settings and configurations - adding additional shapes into the created shapes in separate layers to create more complex outcomes - export of the pixelated images as 300dpi vectorized or rasterized files - intuitive interactivity with user friendly adjustments, selections and editing The ideal freelancer would have extensive experience in graphic programming, cre...

Hello, I hope you are well. My name is Umut Sevinç. I have a project that needs to be done, and I am contacting you for this reason. It will be developed using WPF App (.Net Framework). This is a Real Estate project. The project will include adding, deleting, and updating listings, and will use a database and layered architecture. The listings will be for apartments, villas, and buildings for sale & rent. I do not require a professional-level work; a beginner-level implementation will suffice. Our budget for this project is $50. I would appreciate an immediate response, whether positive or negative. Thank you again, and I hope you have a good day.

Seeking a skilled business analyst to help improve our operations. The ideal candidate will be able to gather requirements and analyze data to ensure improved efficiency and success within our company. The main goal of this project is to streamline our processes and ensure that we are in line with industry best practices. You should be able to identify areas for improvement and make recommendations for implementation. Key requirements: - Proven experience as a business analyst - Ability to gather requirements and analyze data - Strong knowledge of industry best practices We're looking for someone who can come in and hit the ground running, so being proactive and resourceful is a big plus. The successful candidate will play a pivotal role in shaping the future of our...

I am looking for someone experienced in building tool websites with an emphasis on monitoring changes on various websites. The primary function is to detect and report on content changes, with users receiving notification of these adjustments via email & sms alerts. Ideal Requirements: - Proficiency in building tool websites for monitoring purposes. - Knowledge in setting up a system to detect website content changes. - Experience in integrating email alert notifications for users. - Loading Capacity 500+ Websites Searching per Hour - Foresight in creating an interface user-friendly even for non-technical users. This project will require strong analytical skills and a sharp eye for detail. I'm excited to work with someone who understands the critical need for w...

I'm looking for a skilled freelancer who can help me automate personal communication using WhatsApp Cloud API. The main goal of this project is to streamline my personal communication processes and make it more efficient. Key Responsibilities: - Integrating WhatsApp Cloud API: The first phase of this project would involve setting up the WhatsApp Cloud API, including the integration of a websocket webhook for real-time communication. - Developing Automation Scripts: I will need you to create Python scripts that can automate various communication tasks on my behalf. This might involve sending messages, responding to specific triggers, or even managing contacts. Skills and Experience: - Proficiency in Python: You should be an expert in Python programming, as this ...

...website for managing workplace shift schedules. It is enough that this project has the qualifications to do the job. I am leaving a few photos so that you can have general information about the project design. It is sufficient that at least the texts that will be seen in the UI be in Turkish. Key Features: - Employee login and registration - Comprehensive shift scheduling and management tools - Facility to view and edit shift details - User access restrictors based on roles The web platform should be designed with a professional and corporate aesthetic, ensuring it's not only functional but visually appealing to users. Ideal Skills and Qualifications: - Proficiency in web development, particularly with SpringBoot : Java and Angular: TypeScript or JavaScript...

I'm looking for a professional who can create and e...and execute an online survey to measure practitioners' acceptance of using artificial intelligence in educational contexts, and then analyze the results. Key Responsibilities: - Develop an online survey in line with current industry standards and best practices - Ensure the survey is engaging and encourages high completion rates - Analyze the results to draw meaningful insights - Provide a comprehensive report of the findings Ideal Skills and Experience: - Proven experience in survey design and execution - Previous work in the field of education and/or artificial intelligence - Strong analytical skills and the ability to draw actionable insights from survey data - Excellent written and communication skills - An...

I'm looking for a professional to help me with the analysis of my customer feedback data and to present the results in a comprehensive written report. Key Requirements: - Analyze the customer feedback data provided - Present the results and insights in a detailed written report Ideal Skills and Experience: - Proficient in data analysis and evaluation - Strong experience with customer feedback analysis - Excellent written communication skills - Familiarity with report writing Please provide examples of similar analysis you've conducted and attached reports you've written in the past.

I need a comprehensive business report based on historic data of company. More details will be provided to eligible bidder.

For this delicate assignment, I'm searching for a skilled professional who can create a tasteful and elegant slideshow using personal photos. Specific requirements include: - Only photos will be used, no videos. - No requirement for music implementation. - Apply simple fade transitions between photos for consistency and smooth flow. The ideal candidate for this project will have experience in creating sentimental photo presentations, with excellent visual aesthetics understanding. A portfolio of previous similar work is highly desirable. Your reliability, understanding, and respect for the sensitiveness of this type of work are crucial.

As a communications engineer needing assistance with Natlab programming, I require a professional, preferably with a background in my field, to convert and integrate specified intermediate-level algorithms into MATLAB code. The project will entail the following: - Familiarizing yourselves with the existing code. - Converting given algorithms into MATLAB code. - Implementing the newly created MATLAB code into the existing code. Ideally, you should have a solid grounding in debugging, performance optimization, and feature implementation. This role needs an individual with a keen eye for detail and an understanding of the inner workings of the Natlab program, especially in communications engineering. Previous experience with similar projects would be an added advantage.

I'm in need of an expert who can help me with setting up Genie ACS on Ubuntu for managing routers and modems remotely. My ultimate goal is to have a seamless and efficient remote device management system. Key responsibilities: - configure Genie ACS on Ubuntu - Set up the system to manage routers and modems remotely - Ensure the system is fully functional and secure Ideal candid...device management - A strong understanding of TR-069 protocol - Excellent troubleshooting skills - Strong security background to ensure the system is robust I'm looking for someone who can work efficiently and independently to deliver a reliable remote device management system. Your experience with TR-069 protocol and Genie ACS should be at an expert level to ensure the successful implementation...

...so an understanding or interest in these areas will be beneficial. The ideal candidate should be able to generate quality scripts on a weekly basis. - Marketing Expert: I am seeking a marketing professional who can strategize, execute and optimize plans to increase the channel's visibility and drive engagement. Experience in YouTube channel marketing and a strong understanding of the YouTube algorithm will be a huge advantage. - Thumbnail Makers: A skilled graphic designer with experience in creating eye-catching thumbnails that can grab the attention of potential viewers and drive clicks. Creativity, an understanding of visual design principles and the ability to visually communicate the essence of the video in a single image are key. If you have the necessary skills, ex...

I need a talented typist to help with a large-scale project. The task at hand involves typing numerous reports. These reports are not overly complex and do not require any advanced formatting or design work. Instead, basic formatting is all that is needed to give them a professional look. Key requirements: - Large volume of typing work - Typing and basic formatting of reports Ideal skills and experience include: - Proficiency in typing and formatting - Capability to handle a high volume of work - Attention to detail for accuracy - Experience with report typing is a plus

Project Description: We are seeking a skilled Java developer to contribute to the development of an e-commerce platform (basic) with the following key features: User Management: Implementation of user accounts with basic profile information (name, email, password). Product Management: Creation of a product listing functionality with basic product details (name, description, price, category, etc.). Inclusion of at least 100 sample products for demonstration. recommendation system: Generate recommendations based on simple rules and user behavior. For example, you can recommend products that are popular among other users, products in the same category as the ones the user has viewed, or products with similar price ranges. Store and update user view history in the databas...