# Robinson 2026: Project Kryptos

> Dan Robinson, Matt Huang, 2026. 8 records on Mysteries Department cite it. Primary statement of who holds K4 and how it is guarded.

Source: https://mysteriesdept.com/sources/SRC0D7HT0041JD9/project-kryptos  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Sources](https://mysteriesdept.com/sources)[Kryptos](https://mysteriesdept.com/mysteries/kryptos)Robinson 2026

**0**

# Project Kryptos

Dan Robinson, Matt Huang, 2026. _Paradigm, 12 June 2026_.

The buyer's announcement: Paradigm is "the new stewards of the Kryptos secret", has set up a SHA-256 plus cloud HMAC verifier so that no one at the firm sees the plaintext, charges $1 per K4 submission, holds the K5 ciphertext for later release, and runs a ten-puzzle challenge with $1,000 prizes.

**Kryptos** Web pageChecked against the original0

## What it's used for here

Primary statement of who holds K4 and how it is guarded.

## Cited by on this site 8 records

[K4's plaintext and method are known to a few holders and deliberately unpublished.](https://mysteriesdept.com/mysteries/kryptos/answers/ANS0D7HT9RM4MAQ/k4s-plaintext-and-method-are-known-to-a-few-holders-and)

Answer

ANS

[Sanborn's private Kryptos archive (K4 plaintext, K4 coding system, K5, K1-K3 charts, prototype plate)](https://mysteriesdept.com/mysteries/kryptos/artifacts/ART0D7HTJ281HN8/sanborns-private-kryptos-archive-k4-plaintext-k4-coding)

ART

[Paradigm says Sanborn entered the plaintext into a verifier and that the firm has not seen it; it has not…](https://mysteriesdept.com/mysteries/kryptos/evidence/EVD0D7HTA882ZC9/paradigm-says-sanborn-entered-the-plaintext-into-a-verifier)

Evidence

EVD

[Paradigm announces it bought the archive and opens a K4 verifier and puzzle challenge](https://mysteriesdept.com/mysteries/kryptos/events/EVT0D7HT7JA5ZVQ/paradigm-announces-it-bought-the-archive-and-opens-a-k4)

EVT

[Kryptos](https://mysteriesdept.com/mysteries/kryptos)

The mystery article

MYS

[Paradigm](https://mysteriesdept.com/mysteries/kryptos/organisations/ORG0D7HT4CR370D/paradigm)

ORG

[Is K4 solved, known but withheld, or open?](https://mysteriesdept.com/mysteries/kryptos/questions/QST0D7HT7T41TBW/is-k4-solved-known-but-withheld-or-open)

Question

QST

[What is K5 and will it be released?](https://mysteriesdept.com/mysteries/kryptos/questions/QST0D7HT8HJ3Z98/what-is-k5-and-will-it-be-released)

Question

QST

## Cite it

```
Robinson, D., & Huang, M. (2026). Project Kryptos. Paradigm, 12 June 2026. https://www.paradigm.xyz/writing/kryptos
```

[Read it free at paradigm.xyz](https://www.paradigm.xyz/writing/kryptos)

Key

**SRC** 0D7HT0041JD9

Kind

Web page

Rights

The publisher's

Kept

29 Oct 2026, for editors

Checked

Against the published original

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

Bibliographic records are CC0. Take this one as CSL-JSON, BibTeX or RIS.

[CSL-JSON](https://mysteriesdept.com/sources/SRC0D7HT0041JD9/project-kryptos/csl.json)