KeeeX Timestamp Certificate

3CYPYFLKJDYtVSMq44hqihmLiDcH5rfgM8LDCg9

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 3CYPYFLKJDYtVSMq44hqihmLiDcH5rfgM8LDCg9.html

3CYPYFLKJDYtVSMq44hqihmLiDcH5rfgM8LDCg9
3d412cae475a72ed587a5e76121de6683995a32c713485e0449ca96e544fd9eb
BlockCypher.com Blockchain.info Blocktrail.com
Sat Jul 21 00:00:01 UTC 2018
List of files timestamped in this transaction:
  • xusim-dibaz-sohem-ruhat-mabym-vybiv-pyber-tazom-meseg-lyvak-lydid-pagam-lopag-ryfeb-pakel-kegur-mexox
    3EAvgvbtgbXaRDAnEFkiT4wQtEay6afZyx45qre
    2018-07-20 14:02:55.0
  • xobeg-bamoz-nyzep-bebul-gabur-mahes-makog-kecec-fobyb-lebuz-zufir-nagys-batov-guton-kubol-dugin-mexox
    1JWThd3Tj7PpSGK6nm7bHZ65BSqDjgUARTGhbDz
    2018-07-20 14:05:47.0
  • xiroz-bypyp-kyvur-vyzad-fubar-nakyr-hozup-fopiz-runoz-cityr-mecur-sugur-vobuf-maryz-vahod-tapup-lexex
    1RAUDdqvXx4zUYNGnWLyjQynnkZbwsoN1TmEEuP
    2018-07-20 14:49:47.0
  • xusaz-pozev-rudob-gical-hakel-dehel-gysoc-pinup-picec-dicur-ceguv-teboz-zysur-tidod-meped-ragin-ruxox
    17jHns5dSECtbEdwW4eKUWVEoCbh6B7FRpthvxW
    2018-07-20 14:52:05.0
  • xuges-fenic-cenaz-fogul-pizer-punih-rifak-hopuf-masar-mizoz-desal-hulok-lihig-morak-nirum-gifuf-nexex
    1o7B9PYAohosRRWAoguGNtSy2ZTRJAu9AnrKvxL
    2018-07-20 14:52:38.0
  • xocel-fegiv-kolym-fapyl-senyc-gihes-zidik-dicul-cotuv-fekym-titam-dunod-gepyr-lybov-lusan-vured-mixax
    3G9adzZvFv4WeMt4yiY3oPsWZpvAv7Viazb1tUj
    2018-07-20 14:52:44.0
  • xegaz-vadup-kofyn-hivep-zavak-boryc-setul-zicod-dylon-fediv-tanas-posyb-pyrut-nemas-satub-gycoz-ryxyx
    1BuVgpmYSDHk6WqrXtDXYMHfrtpzZiXH6tfVwM1
    2018-07-20 14:52:49.0
  • xibog-malir-nalaf-hucib-hygab-docyc-cucuk-hegek-kapac-dohys-favof-zymuf-sahoh-betyh-biker-rafaf-nixux
    2UAabsqj5dkBSVoui1eg46RkVq9JxR7UbynhRAS
    2018-07-20 14:52:55.0
  • xogaf-rygyl-fataf-fodet-rumiz-fosob-pufyk-sosev-simas-hadal-fohuc-mymez-zusaz-ledot-cymav-feruz-nyxex
    2gwYPNJJ2SBvV5qRFbWQXTqjT2h2q4X5EYo3AM4
    2018-07-20 14:53:01.0
  • xisaf-hyfif-nosob-cyhun-vatat-bihys-zadob-devaf-dabon-nacap-lodim-pipen-cudud-dypeh-bucic-cogif-loxix
    1PqGigSkoRkyXwo74Cse9Syo3bcPgu9ijNgh8Dt
    2018-07-20 14:53:07.0
  • xunom-niryp-fedib-vacov-fepyf-kudof-hobin-vavys-hyzic-cifil-lisyh-cyrym-daden-damas-lybof-derid-lyxux
    15X728cG3JUn3HUdL6vgnLpWUEtNV3pwApvjMZD
    2018-07-20 17:35:02.0
  • xibop-tepip-hirem-rahaz-tokol-nalur-hyguf-bykys-rabyv-ruhum-tunub-levap-ruzog-kovag-nemol-cemyk-bexax
    2AEkpm3ccF2CTLnyDjFzEVrjZQkogVTNTMw7zeu
    2018-07-20 18:21:08.0
  • xohip-sazet-fadiv-vadah-dabyp-gykyt-pubam-sinuh-zehed-gibyr-herom-nenid-nomyn-sabyz-pimyd-cutuf-texux
    2WY5KiS3W5KcXR6drojgzcWNscTGN4HmyzbNKAx
    2018-07-20 18:21:15.0
  • xihir-devuv-fycen-gakop-lahof-sedor-zisid-rohyr-vabeg-tikol-digat-rovyb-kykes-tupil-tyvec-gesek-voxux
    3Rqteso76feYTAXgqKJZW7En1RfWdwymsx929yd
    2018-07-20 18:22:52.0
  • xupem-kigik-bepyb-kulah-gyzip-nesos-cepef-lukyz-bofav-rodun-culus-vybed-vuvoh-fibod-bolet-tuken-koxox
    1d4Qg2Kjj3t9J1GEXmTDnCpZvXzFETGpZ8QcCVZ
    2018-07-20 18:23:04.0
  • xinol-haloh-vagug-perav-kyhuv-timof-facis-memyc-gosit-taros-lozeg-lydid-venok-hamas-cubym-vecir-byxex
    2e7JBf8fLD18ES3muyRRrpbGBS4qVybX6r11UZC
    2018-07-20 18:24:38.0
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 several 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.