Year 3 of the mathematics course of the University of Oxford Updated 2025-01-10 +Created 1970-01-01
A list of reviews of such systems is maintained at:
This is the class of existing software the perhaps comes the closest to OurBigBook, in particular systems such as:
- Roam Research and its open source clone Foam
- Forester
While we believe that OurBigBook can hold its own against most of them as a personal knowledge base, there is one feature which we believe truly distinguishes OurBigBook from all others in a big way: trustless mind meld with the OurBigBook topic feature, which no other system seems to have.
Many such systems are also no publishing focused enough, and are more focused only in maintaining people's private knowledge bases. Some of them don't even have publishing at all, or its complicated. While publishing is optional in OurBigBook, it is a crucial feature and extremely well supported.
Bibliography:
- Subtle is the Lord by Abraham Pais (1982) chapter III "Relativity, the special theory" has a good sketch as you may imagine.
Initial announcements by self on 2023-06-10:
- twitter.com/cirosantilli/status/1667532991315230720. Follow up when more domains were found: twitter.com/cirosantilli/status/1717445686214504830
- www.reddit.com/r/OSINT/comments/146185r/i_found_16_new_cia_covert_communication_websites/. Marked as SPAM 5 by mods days later. After reaching 92 votes, a very positive reply for that niche sub, and being obviously on topic. Weird. Anyways, did its job and likely kicked off hackernews.
- www.facebook.com/cirosantilli/posts/pfbid04KvRbEXghJakcD4AQz4379L5oVjPZ6vrBF1Eak3p81VnqRSXuXdvvYonCWPhGfQXl
Shared by others soo after:
- 2023-06-11:
- news.ycombinator.com/item?id=36279375#36280220 (212 points). Shame that this was published when we only had about 20 websites. As of writing we had 240. Might have been a greater hit then.
- Google Analytics backlink from lms.fh-wedel.de/ path unknown. Some shitty German university: en.wikipedia.org/wiki/Fachhochschule_Wedel_University_of_Applied_Sciences LMS stands for Learning management system, apparently a Moodle instance. Maybe they have some Open educational resources, but all in German so pointless
- www.reddit.com/r/conspiracy/comments/14705gp/cia_2010_covert_communication_websites/ failed attempt with bad link unfortunately
- a few days later:
- 2023-06-19 www.reddit.com/r/numberstations/comments/14dexiu/after_numbers_stations_vanished/ (30 points) off topic on that sub, but thankfully was not deleted, interesting sub topic
2023-10-26 twitter.com/cirosantilli/status/1717445686214504830: announcement by self after finding 75 more sites
Second wave:
- 2023-12-01: news.ycombinator.com/item?id=38492304 (65 points). Second submission but pointing to OurBigBook.com rather than cirosantilli.com: ourbigbook.com/cirosantilli/cia-2010-covert-communication-websites We take those. Reached only 65 points as of January 2024.
- 2023-12-02: buttondown.email/grugq/archive/december-2-2023/. "grugq" is the handle of a zero day dealer whose received some scrutiny in 2012 after a Forbes protile was written about him: archive.ph/7mUG5. He comments:presumably referring to DNS Census 2013.
I don’t think anyone anticipated that databases leaked by hackers would enable OSINT researchers to conduct counterintelligence investigations that rival the state security services.
Some more:/ny
- 2024-01-12: twitter.com/jeremy_wokka/status/1745657801584656564 (40k followers, mid of thread)
- 2024-01-15: Oleg Shakirov's findings, publication announced by Ciro Santilli at: twitter.com/cirosantilli/status/1747742453778559165 two days later
- 2024-01-23: ipinf.ru gives 4 hits and 4 new suspects, announced at: mastodon.social/@cirosantilli/111807480628392615
- www.quora.com/How-is-a-voice-transmitted-from-one-phone-to-another
- www.quora.com/How-many-wires-does-a-telephone-use/answer/Peter-Yardley-1
Basic analogue phones connected to the public exchange use two wires mainly arranged as a twisted pair to reduce noise. The voice signal is differential (the voltage in one wire equal and opposite to the other) biased above ground by 48V. Using a twisted pair reduces induced noise because the noise signal will induce an equal voltage in each wire and because the signal is transmitted as the difference the effect of the induced noise will be dramatically reduced.
Phone Intercom by Make (2014)
Source. This video illustrates will the incredible simplicity of the connection of a telephone system. Compare that to the relative complexity of wireless communication, which requires modulation.A 2022 clone of phabricator.wikimedia.org/source/mediawiki.git gives first commits from 2003 by:
- Lee Daniel Crocker: en.wikipedia.org/wiki/Lee_Daniel_Crockerso that gives a good notion of the last major rewrite.
He is best known for rewriting the software upon which Wikipedia runs, to address scalability problems.
- Brion Vibber
TODO when was wikipedia open sourced from Nupedia? The ealry days of Wikipedia are quite obscure due to its transition from Nupedia.
Gospel of Matthew 4:4:
Man shall not live by bread alone, but by every word that proceeds out of the mouth of God
Ciro Santilli's mother loves that one. Even though she was constantly worried that if Ciro had studied physics he would be poor and starve, a factor which led him to study engineering instead, one of the greatest mistakes of his life. don't be a pussy.
Holds strings for the symbol table.
This section has
sh_type == SHT_STRTAB.It is pointed to by outputs:
sh_link == 5 of the .symtab section.readelf -x .strtab hello_world.oHex dump of section '.strtab':
0x00000000 0068656c 6c6f5f77 6f726c64 2e61736d .hello_world.asm
0x00000010 0068656c 6c6f5f77 6f726c64 0068656c .hello_world.hel
0x00000020 6c6f5f77 6f726c64 5f6c656e 005f7374 lo_world_len._st
0x00000030 61727400 art.This implies that it is an ELF level limitation that global variables cannot contain NUL characters.
Section type:
sh_type == SHT_RELA.Common name: "relocation section".
.rela.text holds relocation data which says how the address should be modified when the final executable is linked. This points to bytes of the text area that must be modified when linking happens to point to the correct memory locations.Basically, it translates the object text containing the placeholder 0x0 address:to the actual executable code containing the final 0x6000d8:
a: 48 be 00 00 00 00 00 movabs $0x0,%rsi
11: 00 00 004000ba: 48 be d8 00 60 00 00 movabs $0x6000d8,%rsi
4000c1: 00 00 00It was pointed to by
sh_info = 6 of the .symtab section.readelf -r hello_world.o outputs:Relocation section '.rela.text' at offset 0x3b0 contains 1 entries:
Offset Info Type Sym. Value Sym. Name + Addend
00000000000c 000200000001 R_X86_64_64 0000000000000000 .data + 0The section does not exist in the executable.
The actual bytes are:
00000370 0c 00 00 00 00 00 00 00 01 00 00 00 02 00 00 00 |................|
00000380 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|The
struct represented is:typedef struct {
Elf64_Addr r_offset;
Elf64_Xword r_info;
Elf64_Sxword r_addend;
} Elf64_Rela;So:
- 370 0:
r_offset= 0xC: address into the.textwhose address this relocation will modify - 370 8:
r_info= 0x200000001. Contains 2 fields:ELF64_R_TYPE= 0x1: meaning depends on the exact architecture.ELF64_R_SYM= 0x2: index of the section to which the address points, so.datawhich is at index 2.
The AMD64 ABI says that type1is calledR_X86_64_64and that it represents the operationS + Awhere:S: the value of the symbol on the object file, here0because we point to the00 00 00 00 00 00 00 00ofmovabs $0x0,%rsiA: the addend, present in fieldr_added
This address is added to the section on which the relocation operates.This relocation operation acts on a total 8 bytes. - 380 0:
r_addend= 0
So in our example we conclude that the new address will be:
S + A = .data + 0, and thus the first thing in the data section.This program did not have certain dynamic linking related sections because we linked it minimally with
ld.However, if you compile a C hello world with GCC 8.2:
gcc -o main.out main.csome other interesting sections would appear.
GitLab was very important to Ciro because he wanted to base Booktree on it.
See also: Ciro Santilli's minor projects.
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