CONTACT
One address. No team, no queue.
Structured Decision Intelligence is maintained by SDI LLC, and in practice by one maintainer, James Johnson, who reads everything sent to this address. There is no support team behind it and no ticket queue. Mail is answered by the person who built the system.
Which site you want
THIS SITE
sdi-protocol.org
The protocol's public home: the specification, the architecture, the transparency record, and the verification tooling. Questions about how the system works, claims made on these pages, the public chain, or the standards record belong here.
THE PRODUCT
sdireckoner.com
Commissioning a Reckoner, operating a private chain, and everything purchased rather than published. Commissioning opens in fall 2026. Product and sales questions belong there.
What this address is for
CHALLENGES
Most of all. Every page on this site asks to be checked rather than believed. If a claim fails when you check it, a hash does not recompute, a citation does not hold, a mechanism does not behave as described, this is where that report goes. It is the most useful mail this site can receive.
CORRECTIONS
Errors in the record or in the copy.
STANDARDS
Standards and research correspondence, including anything concerning the NIST docket.
PRESS
Press and speaking inquiries.
For everything verifiable, check first: the verify page exists so that most questions about whether the system does what it says can be answered without asking anyone.