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DEVELOPER REQUIREMENTS DOCUMENT 1. Functional Requirements 1.1 Fixed News Source List - System uses predefined blockchain news websites. - No UI or API for managing sources. - Source list editable only via configuration files. - Each source includes: name, URL, country, credibility score. 1.2 Automated News Scraping - Automatically scrape all configured news sources. - Extract: title, body text, publish date, URL, source metadata. - Run scraping on scheduled intervals. - Save scraped articles to database. 1.3 Article Normalization - Convert HTML to plain text. - Remove ads, menus, irrelevant content. - Normalize content and store cleaned text. 1.4 Topic Clustering - Generate embeddings for each article. - Assign articles to topic clusters using similarity search. - Create new clusters when no match exists. - Store cluster IDs. 1.5 Claim Extraction - Extract factual claims from articles. - Each claim includes: text, type (fact/prediction/opinion/speculation), sentiment. - Store extracted claims. 1.6 Cross-Source Claim Comparison - Compare claims within each topic cluster. - Detect supporting vs contradicting claims. - Count supporting articles per claim. - Store comparison data. 1.7 Truth Evaluation Engine - Compute true outcome for each topic cluster. - Generate: final truth summary, confidence score, supporting claims, contradicting claims. - Save truth summary to database. 1.8 Sentiment & Opinion Classification - Classify each claim as positive, negative, or neutral. - Distinguish facts vs predictions vs opinions. 1.9 Data Storage Requirements Tables Required: - Articles: id, title, content, url, publish_date, source, country, credibility_score, topic_cluster_id. - Claims: id, article_id, claim_text, claim_type, sentiment. - Truth_Clusters: id, topic_summary, final_truth_summary, confidence_score. - Claim_Support: id, cluster_id, claim_id, support_type. 1.10 Automation Requirements - Automated pipelines for scraping, embeddings, clustering, claim extraction, truth evaluation. - All tasks must retry on failure. 1.11 Public API Requirements - GET /truth/latest – return latest truth summaries. - GET /truth/{cluster_id} – truth details. - GET /article/{id} – raw article. - GET /opinions/{cluster_id} – sentiment & opinion breakdown. 1.12 Logging Requirements - Log scraping. - Log claim extraction. - Log truth evaluation. - Log errors and API events. 2. Non-Functional Requirements 2.1 Performance - Support 100–1,000 daily articles. - Clustering: <5s per article. - Truth evaluation: <60s per topic. 2.2 Reliability - Retry failed AI or scraping jobs. - System continues operating if one source fails. 2.3 Scalability - Must support expanding number of sources via config. - Must support distributed scraping and AI workers. 2.4 Security - HTTPS required. - Public APIs must have rate-limiting. 2.5 Maintainability - Adding new news sources requires only config changes. - AI model provider must be swappable via configuration. 3. Deliverables - Backend service implementation. - Automated scraping pipeline. - Topic clustering module. - Claim extraction module. - Truth evaluation engine. - Database schema. - Public REST API. - Deployment configuration. - Developer documentation. 4. Acceptance Criteria - System scrapes all sources automatically. - Articles are cleaned and stored. - Claims extracted accurately. - Contradictions identified. - Truth summaries stored and accessible. - No admin interface for source management.
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With my extensive experience in developing sophisticated web and AI applications, I am confident in my ability to successfully execute your AI-powered blockchain news truth engine project. Whether it's setting up, configuring, or managing the fixed news source list, automating the scraping process, extracting claims, performing cross-source claim comparison, classifying sentiments and opinions, or handling large-scale data storage and retrieval— I'm well-equipped to deliver on each of these functionalities. In particular, my mastery of modern Javascript frameworks like React.js and Vue.js along with my backend expertise in Node.js will enable me to develop a highly scalable and performant solution for your project. Additionally, my strong background in Data Science and Machine Learning (ML) augments my ability to build robust topic clustering models and accurately extract claims from diverse articles. Finally, it's worth mentioning that I prioritize communication and transparency throughout project execution. You will be kept informed at every stage with clear updates on the logging functionality as well as systematic error handling implementation. Overall, by selecting me for this endeavor, you can be ensured of a business-oriented approach that blends high-quality technical solutions with a drive for growth.
$250 USD in 7 Tagen
5,1
5,1
33 Freelancer bieten im Durchschnitt $132 USD für diesen Auftrag

Hello, I am really excited about the opportunity to collaborate with you on this project! It aligns perfectly with my skill set and experience, and I’m confident I can contribute meaningfully to your vision. I genuinely enjoy working on projects like this, and I believe we can create something both functional and visually engaging. Please feel free to check out my profile to learn more about my past work and client feedback. I’d love to connect and discuss the project details further your goals, expectations, and any specific features or ideas you have in mind. The more I understand your vision, the better I can bring it to life. I am ready to get started right away and will put my full energy and focus into delivering quality results on time. My goal is not just to complete the project, but to exceed your expectations and build a long-term working relationship. Looking forward to hearing from you soon! With regards! Nikhil
$250 USD in 7 Tagen
8,1
8,1

Dear Client, I have carefully reviewed your requirements for the development of an AI-Powered Blockchain News Truth Engine and I am confident in my ability to deliver exceptional results. With expertise in PHP, Python, Web Scraping, and Data Science, I am well-equipped to handle the automation of news scraping, article normalization, topic clustering, claim extraction, truth evaluation, and sentiment analysis as outlined in your project description. My extensive experience in developing backend services, implementing automated pipelines, and creating public REST APIs aligns perfectly with the deliverables you are seeking. I am committed to ensuring the performance, reliability, scalability, security, and maintainability of the system while meeting all specified acceptance criteria. I look forward to the opportunity to discuss your project further and collaborate on turning your vision into a reality. Best regards, Ali Zahid
$30 USD in 7 Tagen
5,8
5,8

Good Day Yuri ✌️ I have thoroughly reviewed the detailed requirements for the AI-POWERED BLOCKCHAIN NEWS TRUTH ENGINE project. I am confident in my ability to deliver on the functional aspects such as automated news scraping, article normalization, topic clustering, claim extraction, cross-source claim comparison, truth evaluation engine, sentiment & opinion classification, and the automation and API requirements outlined. Why Choose me? - Unlimited Revisions: Ensuring the project meets your expectations. - Unique Creations: Tailoring the solution to your specific needs. - Money-Back Guarantee: Ensuring satisfaction with the final product. - 24/7 Communication: Available for discussions and updates. Browse my portfolio for quality work samples: https://www.freelancer.com/u/leenadvnani6 Let's discuss your project further in the chat. Best regards, Leena Kumari :)
$60 USD in 2 Tagen
5,4
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Hello Yuri D., I am Maryam Abbas, a skilled developer with 4 years of experience in PHP, Web Scraping, Python, and API Development. I have carefully reviewed the requirements for the AI-POWERED BLOCKCHAIN NEWS TRUTH ENGINE project. To fulfill the project needs, I propose to create a system that utilizes predefined blockchain news websites, automates news scraping, normalizes articles, clusters topics, extracts claims, compares cross-source claims, evaluates truth, classifies sentiment, and provides a public API. The system will have automated pipelines, logging functionality, and meet performance, reliability, scalability, security, and maintainability requirements. You can review my portfolio at https://www.freelancer.pk/u/maryam951 Let's discuss this project further in chat. Best regards, Maryam Abbas
$30 USD in 2 Tagen
5,1
5,1

I can engineer this automated truth platform, implementing the robust scraping pipelines and AI models needed to cluster blockchain news and rigorously evaluate claims for accuracy. I will deliver a scalable, configuration-driven backend that handles the entire flow—from extraction to contradiction detection—ensuring your API provides reliable, evidence-backed truth summaries.
$140 USD in 1 Tag
4,8
4,8

Hello there, I understand that you are looking for a developer to create an AI-powered blockchain news truth engine with specific functional requirements such as fixed news sources, automated news scraping, article normalization, topic clustering, claim extraction, cross-source claim comparison, truth evaluation engine, sentiment & opinion classification, data storage, automation, public API, and logging. My proposed solution includes developing a backend service with automated scraping pipelines, topic clustering, claim extraction modules, truth evaluation engine, database schema, public REST API, deployment configuration, and developer documentation to meet your requirements. Key Deliverables: - Backend service implementation - Automated scraping pipeline - Topic clustering module - Claim extraction module - Truth evaluation engine - Database schema - Public REST API - Deployment configuration - Developer documentation I'll share my portfolio with you in the DM. Kindly, ping me there. I bring expertise in Web Scraping, API Development, PHP, and Software Architecture to ensure quality and reliability. I'd love to connect for a quick chat to discuss your project in more detail. Best regards, Bilal
$140 USD in 7 Tagen
4,9
4,9

⚠️You are not looking for a coder. You are looking for someone who can build this properly. That is exactly why your project stood out.⚠️ Your commitment to a fully automated blockchain news analysis system based on precise claim extraction and truth evaluation demands a robust, scalable architecture designed for seamless scheduled scraping and AI-driven clustering. This approach ensures both data integrity and operational resilience—core principles we embed at DigitaSyndicate. At DigitaSyndicate, a UK-based digital systems agency, we build precision-engineered automation, modern web platforms, and AI-driven systems designed for performance and long-term scalability. Your emphasis on reliable claim classification, fault-tolerant scraping, and configurable AI integration aligns perfectly with our methodical execution and infrastructure design. We recently delivered a similar solution integrating scheduled data ingestion with semantic clustering and veracity scoring. Can you share your main priorities and timeline so I can map out the right execution plan for you? Casper M. Project Lead | DigitaSyndicate Precision-Built Digital Systems.
$200 USD in 14 Tagen
5,0
5,0

Hello, I’m Rahul Singh from Team Velora. With 3 years of experience building scalable AI-driven backend systems, we specialize in automated scraping, NLP pipelines, clustering, and truth-evaluation engines aligned with strict functional specs. We deliver clean architecture, retry-safe automation, and well-documented APIs ready for production use. Please come to private chat to see samples of similar data-intensive and AI-backed systems.
$120 USD in 3 Tagen
4,6
4,6

Hello, Greetings Yuri D., Good evening! Already have something live to show you I am professional mobile engineer with skills including Machine Learning (ML), PHP, Web Scraping, API Development, Software Architecture, Natural Language Processing, Data Science and Python. Please send a message to discuss more about this project. Hope to hear from you soon
$30 USD in 4 Tagen
4,4
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My name is "Usama Safdar" and I am a Ph.D degree holder which means I am highly-capable to tackle this project "Content Editor " with 100 percent accuracy. I am a professional writer with over 6 years of experience in writing; Essays, Research Summaries, Thesis, Dissertation, Lab Reports and Case Studies. I always provide High-Quality Solutions within the shortest possible time with all instructions followed against very reasonable prices. I can manage works even with shortest deadlines like; "2500 words work in just 6 Hours" with very reasonable time. As a pro academic writer I am also familiar with all the referencing styles; such as APA, Harvard, OSCOLA, IEE, MLA etc. I always provide plagiarism-free solutions and as a prove I also provide "FREE Turnitin reports". For Samples, please visit my profile https://www.freelancer.com/u/SolutionMart Please message me to start the discussion. Thank You
$30 USD in 1 Tag
3,5
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We understand the need for a robust backend that automates blockchain news extraction, clustering, and truth evaluation with reliability and clear API access. The challenge is seamless automation with strong accuracy, performance, and security. We will deliver a resilient backend with scheduled scraping, cluster and claim modules, database schema, and a secure public API. All configurations and AI providers remain easily swappable for future scalability, without manual admin interfaces. You can view our previous work at this link: https://www.freelancer.com/u/Lsstudio1228 Let’s create something great together. LS STUDIO
$150 USD in 7 Tagen
3,4
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My name is Rabia Faisal, I am working in the writing industry since 2011. During this time, I have served countless clients with a full amount of satisfaction by providing them with TOP Quality Solutions. I have command of all references APA, Harvard, IEEE, MLA & Chicago, etc. I will provide plagiarism-free work with 100 percent accurate grammar within your given deadline. Please message me to get Top Class Services. I am waiting; https://www.freelancer.com/u/TopWritingGuru
$30 USD in 1 Tag
1,9
1,9

Hi there, I understand that your main goal is to efficiently identify and scrape WordPress websites for businesses to enhance your AI-powered blockchain news truth engine. In my previous role, I successfully developed a web scraping tool that extracted data from over 100 websites daily, increasing our data collection efficiency by 40%. Additionally, I have experience targeting specific geographical locations, ensuring that the scraped data is relevant and timely. To meet your requirements, I will implement a targeted scraping strategy using automated tools to identify and extract data from WordPress sites, aiming to meet your goal of 50 businesses per day. I will also ensure that the collected data is structured and ready for immediate analysis to support your project. I would be happy to discuss your needs and get started right away. Best regards, Artem
$140 USD in 7 Tagen
2,0
2,0

With a rare combination of skills in Full Stack Web Development and an expertise in Python, I am poised to offer you the exact proficiency you require for your ambitious project. My experience spans designing, developing, and maintaining fully integrated systems. Through my work on WordPress themes and plugins development, I have a meticulous understanding of handling large databases to scrape and normalize content – which would prove to be incredibly useful in this case. Apart from delivering clean, responsive, and user-friendly interfaces with React & JavaScript on the frontend, I have worked extensively with Node.js & PHP on the backend to build stable, high-performance functionalities – exactly what your project demands. Additionally, my skills in API Development & Third-Party Integrations provide a solid foundation to automate the entire data processing pipeline and establish public APIs with efficient rate-limiting. Finally, my commitment to detail-oriented work lays a steadfast ground for meeting non-functional requirements such as reliability through functional retries, ensuring HTTPS security compliances, scalable configurations, etc. If selected for this project, I will bring all these experiences and skills-together to deliver an all-encompassing Backend service implementation with automated scraping pipeline, topic clustering module foll
$200 USD in 7 Tagen
2,0
2,0

Hi there We would like to grab this opportunity and will work till you get 100% satisfied with our work. Please come over chat and discuss your requirement in a detailed way. Regards
$250 USD in 7 Tagen
1,4
1,4

Dear Client, I am a skilled developer with expertise in PHP and Python, and I am excited about the opportunity to work on your AI-Powered Blockchain News Truth Engine project. With a disciplined approach, I will ensure the successful implementation of the functional requirements outlined in the developer requirements document. I have experience working on similar projects that require automated data scraping, content normalization, and topic clustering. My strong background in backend development, database management, and API integration aligns well with the technical aspects of this project. I am committed to delivering a reliable and scalable solution that meets the performance requirements and adheres to security standards. I am confident in my ability to create the backend service, automated pipelines, clustering module, claim extraction module, truth evaluation engine, and develop the necessary database schema and REST API. I look forward to discussing how I can contribute to the success of this project. Best regards, Yevhenii
$140 USD in 1 Tag
1,1
1,1

Hi there, I’m super excited about the AI-Powered Blockchain News Truth Engine project! I’ve got solid experience in PHP, Python, and web scraping, and I totally get what you’re aiming for. I can whip up an automated scraping pipeline that’ll pull in news from your predefined sources like a champ. Plus, I’ll ensure claims are extracted accurately and contradictions identified, so you get reliable truth summaries every time. My focus is on building a robust truth evaluation engine that’s fast and reliable, keeping your system running smooth even if one source goes down. Let’s make this happen and bring some real truth to the blockchain news scene! Best regards, Uros S
$140 USD in 7 Tagen
0,0
0,0

Hi, We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on PHP, Python, Web Scraping, Software Architecture, Machine Learning (ML), Data Science, API Development, Natural Language Processing Lets connect in chat so that We discuss further. Thank You
$140 USD in 7 Tagen
0,0
0,0

Hello, I’ve reviewed your AI-Powered Blockchain News Truth Engine – 2 and I’m confident I can deliver a robust, scalable backend that automatically scrapes fixed sources, normalizes content, clusters topics, extracts claims, compares cross-source claims, and generates truth summaries with confidence scores. I will implement a config-driven sources layer (no UI), with fields: name, URL, country, credibility score; and a resilient pipeline with retries and logging. Approach: - Python-based pipelines for scraping, HTML-to-text normalization, embeddings, clustering, and claim extraction; PHP for public API; PostgreSQL for storage. - Modular services deployed via Docker; distributed workers for scalability. - Endpoints aligned with your spec: GET /truth/latest, /truth/cluster_id, /article/id, /opinions/cluster_id with rate limiting. Deliverables map to all components you listed, plus developer docs and deployment configs. Proposed bid: 230 USD. Duration: 42 days. Best regards,
$150 USD in 2 Tagen
0,0
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$30 USD in 1 Tag
0,0
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