Documents / FOIA release

Key to the Extraterrestrial Messages by H. Campaigne

National Security Agency · 11 pages · text by OCR

This unclassified article by H. Campaigne, published in the NSA Technical Journal, Vol. XIV, No. 1, gives a key to a series of 31 hypothetical radio messages from outer space that Campaigne had presented earlier. Step by step it decodes symbols for numbers, arithmetic, logic, set theory, octal notation, the rational and real numbers, limits, and finally the periodic table of the elements. The article concludes that any civilization able to send messages across space would share basic concepts of number, sets and physical constants.

Open the PDF at page 11 Original source ↗

INV.IOAV.JOBV.JUCV.JODVJOEVJOFV.IOGV

JOANV.JOAAV.JOABVJOACVJOADVJOAEVJOAFVJOAGV

JOBNV.JOBAV.JOBBVSTVCHAV:

NTV1NAVUAVBBT.INVJOAVVCHAV;

INVBLAVJRAV.

JRVBI BVJRAV

DWBLCVJKW

THE BLDV JRBV

INVK.ABV.IRBV.

HETVQUAVCQUARTAVINVBLAVCIRBV.

HIVTVQUAVACTQUBBTAV.INVBLAVVJRCV

HVTVQUAVBCTQUDDTAVJNVBLAVVJRDV.

HVTVQAVDETQUFFTAV.JNVRL.AVV.JREV

HVTVQUAVFGTQUABFTAV.INVBLAVV.JRFV.

HVTVQUAVABGTQUADBTAVJNVBLAVVJRGV:

JNVBL.AVBL.CVBL.ACVBL.BCVBLDEVBL.FGV

BCBGVSTV.JOAV.

.INVHIBVBLDVBLADVBI.BDVBLDFV

BLGNVBI.ACNWSTVJOBV:

JWHL.EVBL.AEVBLCGVBLFAVBLARAVSTVJOCV

JNVTVTVTVTVBLFVBLAFVBLDNVBLFBVBLABBVSTV.IODV.

JNVBJ.GVBLAGVBL.DAVBI.FCVB1.ABCVSTV.JOEV.

.INVBI.ANNBI.BNVBI.DBVBI.FDVBI.ARDVSTVJ0FV.

JNVBL.AAVBL.BAVBL.DCVBL.FEVBL.ABEVSTVJOGV

.INVBL.ABVBL.BBVBL.DDVBLFFVBL.ABFVSTV.JOANV.

JNVBI.BFVBLDGVBI.GAVBLGBVBI.GCVBLGDV

BLGEVBLGFVBLGCVBLANNVBLANAVBLANBVBLANCV

BL.ANDVBL.ANEVBL.ANFVBL.ANGVBLACAVBLACBV

BL.ACCVBL.ACDVBL.ACEVBL.ACFVBLACGVBLADNV

BLADAVBLADBVSTVJOAAV;

JNVTVTVBLBFVBLENVBL.AANVJOABV.

JNVBI.BGVBI.EAVBI.AAAVSTVJOACV:

JNVBI.CNVBLEBVBL.AABVSTVJOADV.

JNVBL.CAVBL.ECVBL.AACVSTVJOAEV:

JNVBL.CBVBLEDVBL.AADVSTVJOAFV.

.INVBL.CCVBL.FEVBL.AAEVSTV.IOAGV:

INVBI.CDVBLEFVBLAAFVSTVJOBNV;

.INVBL.CEVBL.EGVBL.AAGVSTV.JOBAV

.INVH1.CFVBLFNVBLABNVSTVJOBBV:

JNVCHAVKSPV

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FOIA release, from the nsa collection. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 11 pages are in the text index: search them above, or from the library's search.