Thanks — that’s exactly the hard part I want the Hub to help people navigate: not just finding a provision, but understanding which other regulatory layers may affect the same transaction. I’m also exploring adding an NLP layer to connect these pieces more effectively and provide greater value to users, especially those relying on the tool to inform commercial or compliance decisions.

As for your specific question, I’m not using a graph database at this stage. The Hub is built around dedicated modules for the relevant regulatory sources, with source references and cross-links, rather than a Neo4j-style provision graph. One area I’d like to develop further is explicitly mapping the interactions between provisions.

For SDN monitoring, I’ve built a separate local monitor focused on the [`CUBA-EO14404`](https://www.ecfr.gov/current/title-31/section-516.201) program. It imports OFAC’s official SDN, alias, and address data into SQLite, computes stable SHA-256 hashes of normalized entry data, and records detected additions, modifications, and removals with timestamps. I particularly liked seeing how this view captured [a recent addition](https://ofac.treasury.gov/recent-actions/20261015). It also uses conditional HTTP requests (`ETag` / `Last-Modified`) to avoid reprocessing unchanged SDN exports and includes safeguards against suspiciously large drops in entry counts.

![](https://m.stacker.news/161903)

The Hub is still running locally, so I’m not opening a beta just yet. I’d be happy to let you know when I have a testable version ready. Feedback from someone with firsthand experience of these regulatory interaction problems would be especially valuable.

This is super useful - OFAC/CACR + BIS maze is a nightmare. Biggest bottleneck for me has always been "how provisions interact" - one doc says allowed, another general license contradicts it, then EAR says no. Your approach of preserving traceability to original sources while showing relationships is key. Are you using a graph DB for the provision links? Would love to test it when you open private beta. How are you handling versioning when OFAC updates SDN list?

Chikasunbeats

, which received some valuable feedback, including 

US sanctions on Cuba span laws, regulations, executive orders, and licensing provisions scattered across multiple official sources. The 

 (CACR) are a central component of this framework, but understanding the broader regime requires connecting them with other applicable authorities and licensing rules.

, with substantial assistance from LLMs in code generation, to make this regulatory maze easier to navigate.

The challenge isn't simply collecting documents; it's making their relationships easier to understand while preserving traceability to the original sources. For Cuba's private sector, finding the relevant licensing provisions can be an important first step in assessing whether a potential commercial activity may be permissible under US law, including import and export transactions.

, relevant Executive Orders and OFAC sanctions designations, including their connections to the 

, applicable OFAC general and specific licenses, and the 

 (15 CFR Parts 730–774), together with associated Bureau of Industry and Security (BIS) 

 to bring these different information sources into a more accessible research environment. It is currently running locally and undergoing private testing. I'm looking for the best way to make it available to users and build a sustainable 

 around it, without opening up the source code at this stage.

I'd particularly welcome feedback from software developers, regulatory researchers, and anyone who has navigated fragmented legal information. 

Where do you see the biggest bottleneck in regulatory research: finding the right document, understanding how different provisions interact, or determining which rules require closer review?

 Sometimes the information is public. Making it usable is the real engineering problem.

tech

Politics_And_Law

This builds on [a previous item here](https://stacker.news/items/1588033), which received some valuable feedback, including [this comment](https://stacker.news/items/1588033/r/limonta?commentId=1588450).

US sanctions on Cuba span laws, regulations, executive orders, and licensing provisions scattered across multiple official sources. The [Cuban Assets Control Regulations](https://www.ecfr.gov/current/title-31/part-515) (CACR) are a central component of this framework, but understanding the broader regime requires connecting them with other applicable authorities and licensing rules.

I started building **Cuba Sanctions Hub**, with substantial assistance from LLMs in code generation, to make this regulatory maze easier to navigate.

The challenge isn't simply collecting documents; it's making their relationships easier to understand while preserving traceability to the original sources. For Cuba's private sector, finding the relevant licensing provisions can be an important first step in assessing whether a potential commercial activity may be permissible under US law, including import and export transactions.

![](https://m.stacker.news/161877)

The Hub brings together the CACR and [31 CFR Part 516](https://www.ecfr.gov/current/title-31/part-516), relevant Executive Orders and OFAC sanctions designations, including their connections to the [Specially Designated Nationals and Blocked Persons (SDN) List](https://www.treasury.gov/ofac/downloads/sdnlist.pdf), applicable OFAC general and specific licenses, and the [Export Administration Regulations (EAR)](https://www.ecfr.gov/current/title-15/part-746/section-746.2) (15 CFR Parts 730–774), together with associated Bureau of Industry and Security (BIS) [export-control and licensing requirements](https://www.bis.gov/licensing/country-guidance/cuba-export-controls).

The application draws on [official APIs and government data sources](https://www.census.gov/data/developers/updates/new-discovery-tool.html) to bring these different information sources into a more accessible research environment. It is currently running locally and undergoing private testing. I'm looking for the best way to make it available to users and build a sustainable *business* around it, without opening up the source code at this stage.

I'd particularly welcome feedback from software developers, regulatory researchers, and anyone who has navigated fragmented legal information. **Where do you see the biggest bottleneck in regulatory research: finding the right document, understanding how different provisions interact, or determining which rules require closer review?** Sometimes the information is public. Making it usable is the real engineering problem.

![](https://m.stacker.news/161876)