20030915, 21:35  #1 
P90 years forever!
Aug 2002
Yeehaw, FL
2^{4}·3·149 Posts 
Duplicate userids
Can our data analysis guru come up with a list of userids that represent the same person?
Quite simply, if an LL test is listed with the same shift count and program version it is very likely that the result was submitted using two different userids. 
20030916, 05:31  #2 
Aug 2002
Termonfeckin, IE
101011000011_{2} Posts 
Another way of doing this would to look at LUCAS_V.TXT files from successive weeks to see what users changed their user ids. Unless you don't need to keep track of people changing their User IDs.

20030916, 17:46  #3 
Sep 2003
2580_{10} Posts 
Look for lines in LUCAS_V.TXT that have the same exponent, program version, residue and shift count (but ignore all lines with blank or zero shift count), but different user.
For all such matches, print both user+computer_id pairs and a count of how many times they match. [Edit: The higher the count (first column) the more confident we are that it really is the same user. If the count is only 1, we could perhaps have a case of coincidental nonzero shift counts for the same exponent. That seems unlikely, but on the other hand there appear to be three cases of coincidental zero shift counts for the same exponent (see a later post), so it seems that the same coincidence could also happen for nonzero shift counts.] Here's what I get: Code:
1 Atom,232342 5049,232342 9 Kot,Batlord Kot,Batlord 6 MDGeist,Dubloon Brap_On,Connie_RR 1 Nomads,COW_00189 Blues_Bear,COW_00189 1 PrimeHunters,JD_WP3_600 JD_WP3_600,1234 1 S01965, LM4, 1 S108289,C6751BCCA S01214,006 2 S108289,C6751BCCA S01214,011 1 S13679,james_goen S13293,jamey_rankin 1 S15427,CEBD38419 S14686,CC4ADF0F2 1 S17163,D2_p9_24 MV_,DB4 1 S17361,C4FD2267B S15907,C4FD2267B 1 S24542,C711CC718 S24017,C711CC718 3 S24542,CD4D77E7D S24017,CD4D77E7D 7 S31850,RAY RayDK,DUALMP 1 S38938, MarkHolmes,Blue3 1 S46739,CF61699A0 S110360,CE82044FC 1 S47388,AMD500 JT99, 1 S49787,C37A1595B Krystian, 1 S60751,C330C31D7 S60544,C330C31D7 1 S60850,C330C31D7 S60544,C330C31D7 1 S60850,C330C31D7 S60751,C330C31D7 1 S60947,C330C31D7 S60544,C330C31D7 1 S60947,C330C31D7 S60751,C330C31D7 1 S60947,C330C31D7 S60850,C330C31D7 1 S61224,C330C31D7 S60544,C330C31D7 1 S61224,C330C31D7 S60751,C330C31D7 1 S61224,C330C31D7 S60850,C330C31D7 1 S61224,C330C31D7 S60947,C330C31D7 1 S61318,C330C31D7 S60544,C330C31D7 1 S61318,C330C31D7 S60751,C330C31D7 1 S61318,C330C31D7 S60850,C330C31D7 1 S61318,C330C31D7 S60947,C330C31D7 1 S61318,C330C31D7 S61224,C330C31D7 1 S61502,C330C31D7 S60544,C330C31D7 1 S61502,C330C31D7 S60751,C330C31D7 1 S61502,C330C31D7 S60850,C330C31D7 1 S61502,C330C31D7 S60947,C330C31D7 1 S61502,C330C31D7 S61224,C330C31D7 1 S61502,C330C31D7 S61318,C330C31D7 1 S61566,C330C31D7 S60544,C330C31D7 1 S61566,C330C31D7 S60751,C330C31D7 1 S61566,C330C31D7 S60850,C330C31D7 1 S61566,C330C31D7 S60947,C330C31D7 1 S61566,C330C31D7 S61224,C330C31D7 1 S61566,C330C31D7 S61318,C330C31D7 1 S61566,C330C31D7 S61502,C330C31D7 2 S62971,JRZdesk MitelEnt,JRZdesk 13 S63679,CADA2CBB5 Delhaes,Obelix 13 S64610,C450E5EC9 Delhaes,Obelix 14 S64610,C450E5EC9 S63679,CADA2CBB5 1 S64745,Elgornd Malloe,Elgornd 6 S68739,C3EA1D889 PLATHEY,C3EA1D889 8 S69266,C9C1D59C4 S03154, 10 S69266,C9C1D59C4 S03154,C0DD2F91B 1 S72836,C625CF022 S40636,C625CF022 23 S74283,C2B0DBE01 S23596,C6DC7E7FF 1 S77825,C409B1F14 S101423,C56E14F75 1 S79294,CF4AC3A41 Fusion_power, 4 S79704,C92CF4964 RB3,C92CF4964 1 S80170,C2E7C9829 S29882,C094B553D 2 S81103,PazP733 S61685,PazP733 2 S81261,PIII800 Philippe.Rose,Philippe 8 S83216,Robin_Hood S04590,Robin_Hood 1 S88430,C1D8A72C3 S79268,C1FBA9CB9 2 S88989,C6E86602D S42987,C6E86602D 8 S89113,Christian Kosmologika,Christian 2 S93064,C4F505E0C MKilfoyle,Pecos 12 S97997,C30047531 S18892,TriTown3 1 S99081,C02A2FA43 Ethan,P3800 1 Sage2,C08E855C7 S88495,C8E831E06 3 Starchild,Hell_Server S74996,Hell_Server 1 Starchild,Laura_F S74996,Hell_Server 3 Team_Prime_Rib,Glamdring S66724,Glamdring 4 Team_Prime_Rib,Hades_au_D1 S66571,C24F8D016 5 Team_Prime_Rib,Hades_au_P04 S106736,Hades_au_P4e 65 Team_Prime_Rib,Hades_au_P4e S106736,Hades_au_P4e 11 Team_Prime_Rib,Odessit4 S73977,Odessit4 1 Team_Prime_Rib,Stormblad26 S73217,Stormblad26 2 Team_Prime_Rib,kvizbar_w S85061,C9C900B43 1 Teradoc,Teradoc Ruppi,Ruppi 2 TonyG,C155FD7CA S112696,C09E08E00 10 TonyG,new_300 S112696,C09E08E00 2 TonyG,pent166 S112696,C09E08E00 3 akohler,ak_foley1 S12550,ak_foley1 13 asau,asau S66756,CA97E1677 2 asau,gasau S66756,CA97E1677 2 beth133,P10805 S68643,P10805 1 chazhughes, ChazHughes,Home 2 chris65,urukhai S72279,urukhai 2 cielava,CE8187096 S72001,CE8187096 5 cng, S93724,C4159C890 18 cng,CAA78DC40 S93724,C4159C890 1 crossmamy,C330C31D7 S60544,C330C31D7 1 crossmamy,C330C31D7 S60751,C330C31D7 1 crossmamy,C330C31D7 S60850,C330C31D7 1 crossmamy,C330C31D7 S60947,C330C31D7 1 crossmamy,C330C31D7 S61224,C330C31D7 1 crossmamy,C330C31D7 S61318,C330C31D7 1 crossmamy,C330C31D7 S61502,C330C31D7 1 crossmamy,C330C31D7 S61566,C330C31D7 1 dealcomp,riverdale NumMunch,riverdaleP3 1 dmitr0s,DMITR0S S75191,DMITR0S 1 drama,seven S68057,CC40A1AE3 2 druryp,W6125185 S92509,A18130 6 druryp,W6125185b S92509,A18130 3 enrico.farina,CF85C7753 S46556,CF85C7753 1 extropians, S45148, 1 foxkid,Ellen S122496,CEDC0E289 1 goldy,athlon700 S101043,athlon700 2 jabba, idledime,CEB49DBBF 1 johnsonlau,CEBF0B1E1 S120057,C0E29248F 1 kcjaget,Wendy S94904,Wendy 1 kcjaget,wee S94904,Wendy 1 kcukier,CA39EFC14 S09672,mojP4 16 kenishi, S87621,C57C94E15 6 kenishi,CDD217016 S87621,C57C94E15 1 macwang,P42G S82385,P42G 31 mandras,kefir S115663,CA7D99FA6 1 mansion,higradeaxion S113347,C582675BE 3 mansion,higradenotin S113347,C582675BE 1 markcross,C330C31D7 S60544,C330C31D7 1 markcross,C330C31D7 S60751,C330C31D7 1 markcross,C330C31D7 S60850,C330C31D7 1 markcross,C330C31D7 S60947,C330C31D7 1 markcross,C330C31D7 S61224,C330C31D7 1 markcross,C330C31D7 S61318,C330C31D7 1 markcross,C330C31D7 S61502,C330C31D7 1 markcross,C330C31D7 S61566,C330C31D7 1 markcross,C330C31D7 crossmamy,C330C31D7 7 mdelpin,MDelPin_Work S80242,MDelPin_Work 1 mhoney,a950 S70366,C9FCCE56E 2 mjanderso, Team_Prime_Rib,SlashDude_Q2 2 mskidmore,HP_1.5_GHz S77919,HP_1.5_GHz 6 mullen1,Combustion S108016,C48FA3EE3 1 nhandriana,delli3500 nhandrianaA01,delli3500 2 nuutti,hima Remes,C1974E9C8 6 oswald,Roy S59777,littleone 9 pcr,1 S102970,CA29928BB 1 pj,tyo pejj,tyo 1 pm107,vault S116016,vault 5 pneylan,compaq S116834,compaq 5 preiashannara,preiabart2 Bart_VDB,Dell 1 primemasta,Go_Faster PathFinder, 1 primemasta,USS_Hawkeyed mapleson, 1 primemasta,USS_Hawkeyed mapleson,USS_Intrepid 1 primenator,NEOjunior S82938,CBC2EAE5E 1 rei3300,rei S115910,C78DBFB9F 3 rherke, porter, 1 rossum48,Della S81859,C72780FE1 1 ruudv,Dexters_lab jumi,Dexters_lab 2 s08978, molive, 1 sawadey, muppatz, 1 schmeller,OF01 Austria,CBB525C5C 1 sgburston,iggy S103936,iggy 3 shaneamy,P600A S66931,P600B 25 shaneamy,P600B S66931,P600B 15 shaneamy,amd Malfoy,Draco 35 sirlpr,sirl1 S123244,sirl1 1 spotocny, lycorn, 6 stigmv,Aragorn S81847,Aragorn 1 szeva,eva SzEva,eva 1 thomasbudd,C45BDD643 S56906,TomsWork 1 thomasbudd,TFBDuron S89109,TFBDuron 1 tjkwak,1234 S94849,CB97936BB 1 trebinor,450_PIII Mathluver, 2 trebinor,450_PIII Mathluver,450_PIII 2 wethepurple,mycomp Team_Prime_Rib,kmd01 1 whitec2,work2 S19460,CFE0F21C3 1 zanardo,solfarma nastromagario,Thunderbird 4 zedee,celeronA464 S76399,celeronA464 Note that the second "Kot" has an extra space at the beginning. Last fiddled with by GP2 on 20030916 at 19:10 
20030916, 18:04  #4 
Sep 2003
2^{2}·3·5·43 Posts 
The shift count values in LUCAS_V.TXT range from 0 to 33,137,623. I'm not sure how randomly these are selected and over what range. Can we be relatively sure that we'd never get the same shift count for the same exponent by coincidence?

20030916, 18:41  #5 
Sep 2003
2^{2}·3·5·43 Posts 
Suppose we relax the previous criteria to allow lines where the shift count is 0 (but not blank), but still require identical program versions.
A few lines in the above listing increase their counts by one, and the following new lines would appear: Code:
1 Rosencrantz,Mark Guildenstern, 1 TonyG,Donna S112696,C09E08E00 1 k5gj,3 PrimeMinister,Dell_XPS166s 1 minkemaf, FM6, 1 rodspade,rods_p6_200 Guildenstern, 1 rodspade,rods_p6_200 Rosencrantz,Mark 1 s03170, S03170,Daniel If we further relax the criteria to look at cases where the program versions may differ, we only get the following five pairs to consider: Code:
5937551,SW,ifl2,WT2,276494205213E1C4,0,80000000 5937551,beejaybee,alfalfa,G29,276494205213E1C4,0, 6064511,noelcase,NTNB01,WU1,400935412F3405AF,0,80000000 6064511,nollaig,SCADA2,WU5,400935412F3405AF,0,80000000 6619927,CHOPtest,checkie,WT1,F14C1A6D8482823F,0,80000000 6619927,nephi,2,WU5,F14C1A6D8482823F,0,80000000 7231883,Austria,pc13,WV5,78CA0DAC7DDD211F,0,80000000 7231883,Casper,CC99A7DE6,WV1,78CA0DAC7DDD211F,0,80000000 7233739,nhandriana,if21904,WX2,C2FDCA9505CC065A,2804180,001E0000 7233739,nhandrianaA01,delld233,WX1,C2FDCA9505CC065A,2804180,001C0000 The next 3 are also fairly dubious, yet they have the same shift count (which happens to be zero). This seems to be coincidence, but then would it also be possible for two nonzero shift counts to also coincidentally match? What causes the program to choose a particular shift count, and when does it choose zero? How random is the selection of which shift count to use? The final pair of the five looks like the same user, and in fact we already knew nhandriana,delli3500 = nhandrianaA01,delli3500 based on nonzeroshiftcount information. Last fiddled with by GP2 on 20030916 at 18:53 
20030916, 19:03  #6  
Aug 2002
Texas
5×31 Posts 
:surprised One of those is mine and I asked about it several months ago when it happened. I was messing with the prime.ini file and my user id got deleted I believe which caused the program to choose a new random one and then began resubmitting exponents from my results.txt file. I asked at the time because the exponent status on primenet changed to be that of a double check while I had performed a first time LL. Prime95 said it shouldn't be a problem at the time.
Complex33 Quote:
Quote:


20030916, 19:09  #7 
Sep 2003
2^{2}·3·5·43 Posts 
Here's something else odd...
In the Sept 1 2003 data files, all entries for GW were replaced with username S122546. But in the Sept 9 2003 data, it reverted back to GW. 
20030916, 20:18  #8  
P90 years forever!
Aug 2002
Yeehaw, FL
2^{4}×3×149 Posts 
Quote:


20030916, 20:20  #9  
P90 years forever!
Aug 2002
Yeehaw, FL
2^{4}×3×149 Posts 
Quote:


20030916, 20:23  #10  
P90 years forever!
Aug 2002
Yeehaw, FL
2^{4}·3·149 Posts 
Quote:
The reason zero is overrepresented is that any exponents started prior to version 17 and completed with a later version report a shift count of zero. 

20030917, 02:20  #11 
Aug 2002
3×5^{2}×7 Posts 
ID Triplets
Does anyone care to try to identify the triplets, quadruplets, etc?
e.g. Code:
13 asau,asau S66756,CA97E1677 2 asau,gasau S66756,CA97E1677 Code:
1 S60751,C330C31D7 S60544,C330C31D7 1 S60850,C330C31D7 S60544,C330C31D7 1 S60850,C330C31D7 S60751,C330C31D7 Here's another one: Code:
1 Rosencrantz,Mark Guildenstern, 1 rodspade,rods_p6_200 Guildenstern, 1 rodspade,rods_p6_200 Rosencrantz,Mark Code:
1 primemasta,USS_Hawkeyed mapleson, 1 primemasta,USS_Hawkeyed mapleson,USS_Intrepid Code:
3 Starchild,Hell_Server S74996,Hell_Server 1 Starchild,Laura_F S74996,Hell_Server Code:
1 S108289,C6751BCCA S01214,006 2 S108289,C6751BCCA S01214,011 
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