Random?

[jf-uu]

I think the text is either random or encrypted (or maybe some form of custom "hand made" encoding). Even just using the verified part from the README, it seems to have a rather high shannon entropy of 6.1 (compared to natrual language which has an entropy of ~4).

[rmn87]

I tried a bunch of substitution cipher variants based on the visible "cuxL: " text and assuming "https://frame.work/" or similar afterwards... but still no luck

[jf-uu]

The shannon entropy and index of coincidence are too high for it to be a substitution cipher.

Shannon entropy: 6.354914798432 bits/char
Index of coincidence: 0.012062690944 (higher is less random)
Random index of coincidence for the same alphabet used in the text: 0.010752688172

[davidhubbard]

The only digits in the entire ciphertext are:

Index, Digit, Counter
[214] "2" 1
[284] "0" 2
[354] "2" 3
[424] "6" 4
[564] "0" 5
[634] "4" 6
[635] "0" 7
[753] "0" 8
[774] "0" 9
[844] "9" 10

Using "LJD2026-04-09" as an alignment mark leads to reformatting the cipher to combine each 2 rows:

k,A`L\:z>ss(FtT]%kwd>g<.=\A>&UWd-$mW"-"F?uRw|#:wui,)zLK'P$_aziZ\E?I#vD
}v@$JqPM}WqP\H.=NS>^NQk`_IkVMS"<klpcuxL`:]d&NZCCJv'{&'qek[?,<k-#GwG/ln
_r)>DsW=ZN`vW`C`~)?&_nƒKr%t&Rnzr_TuJduuKqoi'bt}J;._xJTTEXc{,<hwQN?+J%%
d*vI2"likv^e,+T($cX"\f&Q&$rU-Nm*N*GFXurZhv)$:|;|juMkjD"+ysiH'L?E:pT>Qn
F^pU0QtH#ktp:n-&}G!nJ\humb[QzQb`+grD<s<mksRb[$\+`wƒ~QXGYdZelSj_TekKbge
XvPp2qt_R]#:{PHYsP$;s}v}w@wg:}|[i=tƒ$Z%wxl%Y!V`]$uO*&zz@Czwk@PSN'Ga-i(
y_*r6J:a!>+L{vsVw+E{ctPIZPfI(U;QprNJCah?IFE^Vs;GCoOVpTƒ`Z$BmƒV|+iI*rW^
},C|-b<QEA).t"hQugNIiMew;qQz{XBksvKd*NR<qp>u%bpPa*`$/k"_JpZ!Yb()QK%?Hq
A}M'0:NbO>"O|~V![I>%aw:\OzI&dNT^N{YVBKL)gddv_<(O.#TS~VSI+dHpQRH*g<h&kb
*AGG40*,=Wj'$Pav[-vQ&sv*d|{">vVydSOyOoF@>d~q)AS-qI[|Ecb"-h"rE}#)<\i?G$
T?Uƒ-ƒ@ƒnGqW}eyEuATB}JjKlJSyS&GG%(--vI~Xc&-hJX=Y.<^?+0/~ad=~-JRPsxWdSI
Ie]e0NBAxHwVd<hkgc@cd{%sƒ!-GOk'SCmhVdB>%!.oq,a.C[Bn'PvyPt!WX?DwRwk<\-@
zEb|9diNNHor&jyyw:cQ,)xAiz^qI&pjooP

Transposing the cipher using Japanese Top-to-Bottom RTL reading, with the LJD2026-04-09 falling out on column x=4:

x=69 "Dn%ne(^qb$I@"
x=68 "vl%QgiWHkGS-"
x=67 "#/J>b-r?&?d\"
x=66 "IG+TKa*%hiW<"
x=65 "?w?pkGIK<\xk"
x=64 "EGN:e'iQg<sw"
x=63 "\#QETN+)*)PR"
x=62 "Z-w?_S|(H#Rw"
x=61 "ikhLjPVbR}JD"
x=60 "z<<'S@ƒYQE-?"
x=59 "a,,Hlkm!pr~X"
x=58 "_?{iewBZH"=W"
x=57 "$[csZz$pdhd!"
x=56 "PkXydCZJ+-at"
x=55 "'eE+Y@`_I"~P"
x=54 "KqT"Gzƒ"Sb/y"
x=53 "L'TDXzTkVc0v"
x=52 "z&JjQ&p/~E+P"
x=51 "){xk~*V$S|?'"
x=50 ",'_MƒOO`T[^n"
x=49 "iv.uwuo*#I<B"
x=48 "uJ;j`$Ca.q.["
x=47 "wCJ|+]GPO-YC"
x=46 ":C};\`;p(S=."
x=45 "#Zt|$Vsb<AXa"
x=44 "|Nb:[!V%_)J,"
x=43 "w&'$bY^uvqhq"
x=42 "Rdi)R%E>d~-o"
x=41 "u]ovslFpdd&."
x=40 "?:qhkxIqg>c!"
x=39 "F`KZmw?<)@X%"
x=38 ""Lur<%hRLF~>"
x=37 "-xuusZaNKoIB"
x=36 ""udX<$C*BOvd"
x=35 "WcJFDƒJdVy-V"
x=34 "mpuGrtNKYO-hP"
x=33 "$lT*g=rv{S(mo"
x=32 "-k_N+ipsNd%Co"
x=31 "d<r*`[Qk^yGSj"
x=30 "W"zmb|;BTVG'p"
x=29 "USnNQ}UXNv&k&"
x=28 "&MR-z:({d>SOI"
x=27 ">V&UQgIz&"yGq"
x=26 "Aktr[wfQI{S-^"
x=25 "\I%$b@Pqz|J!z"
x=24 "=_r&mwZ;Odlƒi"
x=23 ".`KQu}Iw\*KsA"
x=22 "<kƒ&hvPe:vj%x"
x=21 "gQnf\}tMwsJ{)"
x=20 ">N_\Jscia&}d,"
x=19 "d^&"n;{I%QBcQ"
x=18 "w>?X!$EN>vT@c"
x=17 "kS)cGP+gI-Ac:"
x=16 "%N~$}swu[[ugw"
x=15 "]=`(&YVQ!vEky"
x=14 "T.CT-HshVayhy"
x=13 "tH`+nPv"~Pe<j"
x=12 "F\W,:{{t|$}d&"
x=11 "(Pvep:L.O'WVr"
x=10 "sq`^t#+)"jqwo"
x=9 "sWNvk]>A>WGHH"
x=8 ">}Zk#R!EO=nxN"
x=7 "zM=iH_aQb,ƒAN"
x=6 ":PWltt:<N*@Bi"
x=5 "\qs"QqJb:0ƒNd"
x=4 "LJD2026-04-09"
x=3 "`$>IUpr|'Gƒe|"
x=2 "A@)vpP*CMGU]b"
x=1 ",vr*^v_,}A?eE"
x=0 "k}_dFXy}A*TIz"

Passing the Top-to-Bottom RTL output through base64 -d --ignore-garbage: (worth checking because the number of base64 digits comes out just right)

base64 -d --ignore-garbage | hexdump -C
00000000  0e 79 de a9 b2 2f 95 08  22 58 79 06 4b ef c9 6f  |.y.../.."Xy.K..o|
00000010  ea dd 20 6f 93 29 a8 62  5b 0a 64 18 82 b1 90 41  |.. o.).b[.d....A|
00000020  8d 7a 24 20 b3 04 04 4c  df 8f 45 9f b0 fd 21 d1  |.z$ ...L..E...!.|
00000030  c2 29 21 2e 33 d5 6d 12  43 cd 26 10 13 e6 87 96  |.)!.3.m.C.&.....|
00000040  49 a9 ad 7f e2 7b 00 59  1d 67 2c 67 3a 5d 85 d3  |I....{.Y.g,g:]..|
00000050  e4 5f 27 42 64 9f be 6a  d7 84 f9 8f c8 3c aa 93  |._'Bd..j.....<..|
00000060  1b 34 9b ff 22 d3 0d 7c  d3 91 57 34 bf 32 63 42  |.4.."..|..W4.2cB|
00000070  9f c4 f8 fc 64 55 2f cc  38 e4 e7 8a fb b0 ba 82  |....dU/.8.......|
00000080  01 b8 98 c2 6a ac 02 27  e1 8f 3b e6 02 0a 94 99  |....j..'..;.....|
00000090  b5 5b 1b 01 76 8d 6d 5f  c9 c1 b6 2e be a8 6a 45  |.[..v.m_......jE|
000000a0  d8 91 11 df a8 ba 8b ec  94 5a 5d 76 a8 64 c4 8a  |.........Z]v.d..|
000000b0  a0 70 52 99 9b 05 cb ba  b8 51 2c 5f b1 ba eb 19  |.pR......Q,_....|
000000c0  68 d2 a8 20 1b 9d 5c 20  4e bd d5 9c 24 50 c9 75  |h.. ..\ N...$P.u|
000000d0  5c be 56 6a 6e 1a bb 4d  29 83 be 84 f9 53 82 bb  |\.Vjn..M)....S..|
000000e0  d2 9a 8f a4 fc df a2 a6  c3 5d 0a 87 6b 42 4c 86  |.........]..kBL.|
000000f0  4a 35 b3 99 b0 53 54 6a  54 4a 73 50 51 73 6f 90  |J5...STjTJsPQso.|
00000100  c4 7e cd d4 8e 21 55 10  80 8c f2 1a a0 24 b6 bc  |.~...!U......$..|
00000110  1f 40 84 be 21 b3 ea cc  9c ff ae 6c 19 39 d9 62  |.@..!......l.9.b|
00000120  29 0b 88 c0 ab 00 92 1b  cf 7a f8 f1 81 09 df b4  |)........z......|
00000130  cc 2c 24 df c9 b1 c8 9a  75 d9 c8 40 17 10 c1 71  |.,$.....u..@...q|
00000140  0d bd 37 24 49 c1 8f fa  02 3e 01 c3 6c c2 eb a0  |..7$I....>..l...|
00000150  c1 85 50 bc 49 32 4c 24  fe 1e c8 55 6b 28 72 b4  |..P.I2L$...Uk(r.|
00000160  7f a7 3e f3 de 8c 55 ad  74 fb de a4 b3 96 56 bb  |..>...U.t.....V.|
00000170  2a b7 e8 ea c2 8b 16 36  f9 00 58 61 c7 66 44 44  |*......6..Xa.fDD|
00000180  3a 7c 4d cc c8 87 fd a4  1b 00 d3 d6 96 db 4d 06  |:|M...........M.|
00000190  2a ac 42 a2 5b d0 d7 4b  24 3d b4 db af b4 e3 ed  |*.B.[..K$=......|
000001a0  3d 21 4a 6b 19 e0 2f a4  f0 8c 19 46 ef ae ff c0  |=!Jk../....F....|
000001b0  78 49 3f 74 55 f2 01 32  33                       |xI?tU..23|
000001b9

[davidhubbard]

An attempt to use yenc decoding shows it is not a good candidate, even under a Top-to-Bottom tranformation. There are 7 equals signs "=", which are the yenc escape character. But they can only encode an escaped "=", CR, LF, or the "\x00" null byte.

The closest candidate is with a simulated 19-row Top-to-Bottom mapping, which has 2 valid yenc escapes and 5 invalid. All the rest have 1 or 0 valid yenc escapes.

Here's the plain left-to-right yenc-decoded form, using the yenc escape encoding even though it decodes to random values:

0000  41 02 17 36 22 32 10 50  14 49 49 c3 be 1c 4a 2a  |A..6"2.P.II...J*|
0010  33 c3 bb 41 4d 3a 14 3d  12 04 c3 b2 17 14 c3 bc  |3..AM:.=........|
0020  2b 2d 3a 03 c3 ba 43 2d  c3 b8 03 c3 b8 1c 15 4b  |+-:...C-.......K|
0030  28 4d 52 c3 b9 10 4d 4b  3f 02 c3 bf 50 22 21 c3  |(MR...MK?...P"!.|
0040  bd 26 c3 ba 35 37 50 3f  30 32 1b 15 1f c3 b9 4c  |.&..57P?02.....L|
0050  1a 53 4c 16 c3 ba 20 47  26 23 53 2d 47 26 32 1e  |.SL... G&#S-G&2.|
0060  04 c3 a4 29 14 34 24 27  41 36 35 1f 41 2c 23 29  |...).4$'A65.A,#)|
0070  c3 b8 12 41 42 46 39 4b  4e 22 36 10 33 3a c3 bc  |...ABF9KN"6.3:..|
0080  24 30 19 19 20 4c c3 bd  51 c3 bc c3 bd 47 3b 41  |$0.. L..Q....G;A|
0090  31 15 02 12 41 03 c3 b9  1d 4d 1d 05 42 44 35 48  |1...A....M..BD5H|
00a0  c3 bf 14 1a 49 2d c3 b0  24 36 4c 2d 36 19 36 54  |....I-..$6L-6.6T|
00b0  c3 bf 15 c3 bc 35 44 68  21 48 c3 bb 4a c3 bc 28  |.....5Dh!H..J..(|
00c0  44 50 48 35 2a 4b 20 3a  4b 4b 21 47 45 3f c3 bd  |DPH5*K :KK!GE?..|
00d0  38 4a 53 20 11 04 35 4e  20 2a 2a 1b 2e 39 51 02  |8JS ..5N **..9Q.|
00e0  12 3e 4d 27 24 15 01 20  c3 bb c3 bb 3a 00 4c 1f  |.>M'$.. ....:.L.|
00f0  08 c3 b8 42 3f 41 4c 34  3b 02 01 2a c3 be c3 ba  |...B?AL4;..*....|
0100  39 2e c3 b8 32 3c c3 bc  27 c3 bc c3 ba 48 2b 03  |9...2<..'....H+.|
0110  24 43 00 24 00 1d 1c 2e  4b 48 30 3e 4c c3 bf c3  |$C.$....KH0>L...|
0120  ba 10 52 11 52 40 4b 23  41 40 1a c3 b8 01 4f 49  |..R.R@K#A@....OI|
0130  3f 1e c3 bd 22 15 1b 10  46 2a 14 27 44 1c 34 46  |?..."...F*.'D.4F|
0140  2b 06 27 4a 1e c3 b9 41  4a 46 10 44 03 c3 bc 53  |+.'J...AJF.D...S|
0150  1d c3 b7 44 20 32 3e 4b  43 38 31 27 50 27 38 36  |...D 2>KC81'P'86|
0160  01 3d 48 1a 12 49 12 43  41 49 28 38 31 c3 ba 32  |.=H..I.CAI(81..2|
0170  01 36 4d 68 54 27 2e 1d  2f 3a 30 3b 42 29 40 35  |.6MhT'../:0;B)@5|
0180  2a 3b 41 21 38 3d 3b 2e  4c 26 46 08 47 4a 35 28  |*;A!8=;.L&F.GJ5(|
0190  33 c3 b9 10 51 26 1e 2f  49 26 c3 ba 11 49 53 4c  |3...Q&./I&...ISL|
01a0  53 4d 16 4d 3d 10 53 52  31 3f 0a 68 c3 ba 30 c3  |SM.M=.SR1?.h..0.|
01b0  bb 4d 4e 42 c3 bb 2f c3  b7 2c 36 33 c3 ba 4b 25  |.MNB../..,63..K%|
01c0  00 c3 bc 50 50 16 19 50  4d 41 16 26 29 24 c3 bd  |...PP..PMA.&)$..|
01d0  1d 37 03 3f c3 be 4f 35  00 48 0c 20 10 37 c3 b7  |.7.?..O5.H. .7..|
01e0  14 01 22 51 4c 49 2c 4d  01 1b 51 39 4a 26 1f 30  |.."QLI,M..Q9J&.0|
01f0  26 3c 1f c3 be 2b 11 27  46 48 24 20 19 37 3e 15  |&<...+.'FH$ .7>.|
0200  1f 1c 1b 34 2c 49 11 1d  19 45 25 2c 46 2a 68 36  |...4,I...E%,F*h6|
0210  30 c3 ba 18 43 68 2c 52  01 3f 1f 00 48 2d 34 53  |0...Ch,R.?..H-4S|
0220  02 19 52 03 38 12 27 1b  17 c3 bf 04 4a c3 b8 3e  |..R.8.'.....J..>|
0230  27 4b 3d 24 1f 3f 23 3b  4d 11 47 27 50 51 2e 18  |'K=$.?#;M.G'PQ..|
0240  41 49 4c 21 3a 00 24 28  12 47 46 14 4b c3 bb 38  |AIL!:.$(.GF.K..8|
0250  46 26 37 00 36 c3 ba 05  41 c3 b8 35 20 46 30 c3  |F&7.6...A..5 F0.|
0260  b7 2f 38 c3 be c3 bf 27  21 c3 bb 15 1e 47 17 53  |./8....'!....G.S|
0270  23 c3 bd 06 10 24 38 25  14 c3 b8 25 52 54 2c c3  |#....$8%...%RT,.|
0280  b7 31 1f 14 c3 bb 37 4d  10 32 25 50 1f c3 bc 3a  |.1....7M.2%P...:|
0290  24 2a 34 24 51 2f 2c 18  21 22 c3 bf 3d 3a 3a 4c  |$*4$Q/,.!"..=::L|
02a0  35 12 c3 be 25 04 c3 b9  2a 29 54 2c 29 1f 01 3a  |5...%...*)T,)..:|
02b0  1e 46 27 28 1e 00 3d 12  3e c3 bc 41 38 00 17 1d  |.F'(..=.>..A8...|
02c0  1d 0a 06 00 02 c3 ad 40  c3 bd c3 ba 26 37 4c 31  |.......@....&7L1|
02d0  03 4c 27 c3 bc 49 4c 00  3a 52 51 c3 b8 14 4c 2c  |.L'..IL.:RQ...L,|
02e0  4f 3a 29 25 4f 25 45 1c  16 14 3a 54 47 c3 bf 17  |O:)%O%E...:TG...|
02f0  29 03 47 1f 31 52 1b 39  38 c3 b8 03 3e c3 b8 48  |).G.1R.98...>..H|
0300  1b 53 c3 b9 c3 bf 12 32  3f 15 1d c3 ba 2a 15 2b  |.S.....2?....*.+|
0310  68 03 68 16 68 44 1d 47  2d 53 3b 4f 1b 4b 17 2a  |h.h.hD.G-S;O.K.*|
0320  18 53 20 40 21 42 20 29  4f 29 c3 bc 1d 1d c3 bb  |.S @!B )O)......|
0330  c3 be 03 03 4c 1f 54 2e  39 c3 bc 03 3e 20 2e c3  |....L.T.9...> ..|
0340  af 04 12 34 15 01 06 05  54 37 3a 14 03 20 28 26  |...4....T7:.. (&|
0350  49 4e 2d 3a 29 1f 1f 3b  33 3b 06 24 18 17 4e 1e  |IN-:)..;3;.$..N.|
0360  4d 2c 3a 12 3e 41 3d 39  16 39 3a 51 c3 bb 49 68  |M,:.>A=9.9:Q..Ih|
0370  c3 b7 03 1d 25 41 c3 bd  29 19 43 3e 2c 3a 18 14  |....%A..).C>,:..|
0380  c3 bb c3 b7 04 45 47 02  37 04 19 31 18 44 c3 bd  |.....EG.7..1.D..|
0390  26 4c 4f 26 4a c3 b7 2d  2e 15 1a 4d 28 4d 41 12  |&LO&J..-...M(MA.|
03a0  32 03 16 50 1b 38 52 0f  3a 3f 24 24 1e 45 48 c3  |2..P.8R.:?$$.EH.|
03b0  bc 40 4f 4f 4d 10 39 27  02 c3 bf 4e 17 3f 50 34  |.@OOM.9'...N.?P4|
03c0  47 1f c3 bc 46 40 45 45  26 0a                    |G...F@EE&.|
03ca