KeeeX Timestamp Certificate

1ZBAJbZ1dLDVkdZetogAHHFETVpasGEEd8avaTb

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 1ZBAJbZ1dLDVkdZetogAHHFETVpasGEEd8avaTb.html

1ZBAJbZ1dLDVkdZetogAHHFETVpasGEEd8avaTb
b856257e9e49035f8bc9d6788dfa63208ee1f09fee20361d82613ffcdd794778
BlockCypher.com Blockchain.info Blocktrail.com
Thu Jul 27 12:00:01 UTC 2017
List of files timestamped in this transaction:
  • xuliz-fysap-regaz-rymah-nupib-kogug-famap-fufyv-zozyn-zipus-zogev-mofus-huzif-hoziz-ferev-bepar-foxex
    31wz1CnYKA7x98kDUWfCUWJ26RwGN7xndcbLdqV
    2017-07-27 08:12:08.0
  • xehit-pinic-panib-hymac-bisoh-loril-myhef-kudyd-haniz-zyres-reriv-tyfuk-zymer-renes-vysih-lamyn-sixux
    26vjCYM4sti63XC8KmXHj6bvoKyuamS5SsXSpWx
    2017-07-27 08:13:19.0
  • xupis-ligum-sahom-mibec-gemog-rurus-sifot-minub-sufic-zuhim-vuhit-vutyh-myvad-pomac-giceh-sysud-laxyx
    18E3VNBKYVMev3i1Kak6nseZXWpvKATLUURJ6ni
    2017-07-27 08:13:47.0
  • xopol-focob-dosyd-gymul-gosyf-zyrep-hemyt-bavak-neloz-siryh-tahig-myrif-cunal-tuhac-pyker-zytoz-cuxox
    1srksHor4qKTW6cWctVGNCMyQbC1SqUDm69to2j
    2017-07-27 08:25:33.0
  • xevik-gosip-himeh-hizov-gygef-nimyf-ririt-lusut-vuraf-hekus-cucuv-cuhot-ropyc-zudut-venig-daduc-cexox
    1TvL5Rsf7ge2TcHuJ8s9LKarRbvdxGUAffB8Rhp
    2017-07-27 08:29:52.0
  • xocet-cysym-zogop-celat-detoh-vonug-mapyl-lysor-pibem-dyfal-vigah-kafuk-firuc-morar-vehic-duhoz-suxyx
    1QWtvb7Gse9zVLXXWTMZowAEhbY2buXh6SLomis
    2017-07-27 08:31:27.0
  • xulet-tudic-nivod-ginub-mehuc-lapit-sises-fedak-zesik-hicyk-favyz-ripip-bumet-fehug-tokot-bodod-hoxox
    1Zq7bof4c2CMr86Rmt1zHGmsCym1uDGNdBsn3au
    2017-07-27 08:31:41.0
  • xurot-pigud-bikob-fasid-ryvib-posan-sozag-tynab-dysuf-sucis-dyluf-fybab-symuv-mozon-tyguk-cebem-vuxyx
    2Q91FAfE3Jb3Nx9cgALmDKSXiPJQaqAQtw6G1VP
    2017-07-27 08:32:10.0
  • xudav-rykub-telis-mycef-nimak-cafof-dicur-gacev-cizek-gasom-fupat-dokoz-madez-hiron-dicap-lekoh-muxax
    3AiKSV6G8rRAMnfK1FgdWhA7rskvMQLnYB45Y17
    2017-07-27 08:32:22.0
  • xogis-lydel-kivoh-nutef-koryz-zyrol-hinob-coryz-dyvan-nupaz-likif-fimeb-velem-zilyc-dubeb-gisub-texux
    3LVGGTJ5NX4GCkTkg9QJUdNw6SgPaSXJhKRW21p
    2017-07-27 08:56:22.0
  • xotoz-lofoz-gihiz-lyleg-mifab-hifin-kativ-hiduh-tobyt-vikum-noseh-tifaz-hucah-ranih-mynuf-mizis-rexix
    1vctDjGWq3swLXV8K4uWqdrS81JxZQUQ4veDMqA
    2017-07-27 09:01:16.0
  • xidot-gudoh-kefef-berur-tyveb-cenas-mesel-ryfav-leguh-roful-sozin-zytol-tiluz-heled-gupes-sohab-foxax
    1Jt3DSUQ97LFRb2NxwUe3BFVMfcG2qi8hTG5XAu
    2017-07-27 09:28:17.0
  • xedob-talul-kofys-suhok-dozap-fudep-vazec-vydip-nugyb-rafyg-legok-kyfan-hucur-cumyv-fezep-madod-hexox
    37C9sHFHqvvqynHCuSGsX8kbKa9nL1jpXQVzrtE
    2017-07-27 10:14:57.0
  • ximeb-vurip-zynih-zamiz-hasyt-penes-pobis-soveg-kegyz-zoloc-caviz-sudaf-kydyd-hymel-zihih-kyloc-dyxax
    2fhCkp8aeXtaaPy6MpWELksNCoRzaQEFXcFTSYP
    2017-07-27 10:15:28.0
  • xobev-gomud-nekun-penol-deseb-besil-bicok-logyr-pegyb-bicer-huhom-fadal-kyser-nicif-habyh-cosap-paxyx
    1DTrnxhUaHdXQNnZEeV1tvS7oWSwyFY9TBWguDp
    2017-07-27 10:15:30.0
  • xosih-goliz-sacot-cynad-cemut-lyket-doboz-denot-hapen-lebyc-fekik-pikyn-dolup-bagoc-kalon-rodah-gixex
    1Wm8ES3jvpWbh5TPVfxhjyW9AGnquKpi1h31FJz
    2017-07-27 10:15:32.0
  • xugeb-fobis-fonog-vanir-vopyb-sarys-pipaf-hisaf-gyzec-dicon-lecan-zanon-kahyl-sehyz-hicys-rubyp-zexyx
    1EyEmH9SD32ZRjv4ont4Kd8r1dtVhC5g9Cxyqmo
    2017-07-27 10:15:43.0
  • xisas-lazur-byfic-fened-camyp-sezuk-lunob-kisep-neter-lilyh-soguv-nevap-dokyk-gemiv-melin-suzes-saxax
    35Vr5jFnpYoC8FYxhUMpfYEQV571TCHqUS2eFfJ
    2017-07-27 10:15:48.0
  • xonak-regaz-fefum-fatip-zediv-hatub-sutak-gugiv-gigid-levan-mogek-vypok-siris-dugoh-ridyg-gozyv-zuxox
    3Smh1LYEVcZsfPL8d6bbJfxwUBoetrSDyU2EkWY
    2017-07-27 10:16:32.0
  • xilab-lymiz-pibaz-kazud-cigiv-kedup-resyn-papyv-nahyv-fecir-morul-pibaf-nabuc-lyhec-foriz-tizot-fuxex
    1xGdcVC439AA46dHpGQjaqRSqpRY5zfZq9jJ3Cm
    2017-07-27 11:28:19.0
  • xevip-futir-kivyt-goniv-lozyf-zacor-roteh-lohoh-cypih-gytel-togeg-fufyv-sisar-kacan-mudoc-fiduf-zoxox
    1BDkA9F52GUAomzGscJ4oDFeH5YcYW1W8mjczYH
    2017-07-27 11:39:28.0
  • xedeb-marol-masek-fugym-buhac-kepob-tefas-sodul-tafon-pabup-cikak-fufom-gugod-fanyv-celep-fuvul-fuxex
    2UbKgDgirqDX7FsMjtqZKfka2wHmMNdeXsVA6Xq
    2017-07-27 11:41:38.0
Technical Explanations

This certificate mentions file identifiers (also known as KeeeX 'idx') that are computed from sha256 hashes that cannot under the current state of technology be counterfeited. No two distinct files can share the same identifier.

The KeeeX server produces a certificate summary like this one every 6 hours. This timestamp certificate may hence adequately seen as a kind of sidechain, that prevents from pushing too many transactions on the Bitcoin blockchain. It also mutualizes the cost of timestamping of course, which allows KeeeX to provide this as an unlimited service.

This certificate displays at the top below its own b58 encoded identifier computed from an sha224 hash. These settings produce a 39 character string that fits within the current 80 byte Bitcoin blockchain limit. Again, under the current state of the technology, it is not possible to counterfeit this identifier by producing another certificate file with the same id.

This certificate's id has been registered as OP_RETURN data on the Bitcoin transaction above that can for your convenience be verified by following the links below. The present certificate file hence creates a proof chain from the Bitcoin blockchain ledger to your file, that provides evidence that at the transaction date you had knowledge of the identifier of your file, which you may or not have decided to keep private or share publicly. This idx does not by itself expose your data in any way. By using KeeeX, you also have a chance to digitally sign your original file.

Although KeeeX will make its best efforts to keep this certificate accessible and indexable by search engines, we cannot guarantee this. If some file identifiers are of interest to you it is thus your responsibility and interest to download it and make sure to preserve it indefinitely. Once downloaded, you may verify its integrity using the KeeeX app. Depending upon its version, the KeeeX app may automatically retrieve this file on your behalf.

You may wonder why we chose to mutualise this certificate for potentially a large number of files. The reason is that a single certificate may provide a proof of existence for an unlimited number of files and no blockchain, Bitcoin inclusive, is designed to satisfy the massive notarisation needs, since both the block size and rate are constrained.