Documents / FOIA release
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.
Read from the scan by GLM-OCR; expect the odd misread word.
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 above. The text was read from the page images by GLM-OCR; expect the odd misread word. 11 pages are in the text index: search them above, or from the library's search.