KeeeX Timestamp Certificate

1P9E7sA9bXYWSsQWJkk6UBbJpMdrt9Gr9oPm6kT

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 1P9E7sA9bXYWSsQWJkk6UBbJpMdrt9Gr9oPm6kT.html

1P9E7sA9bXYWSsQWJkk6UBbJpMdrt9Gr9oPm6kT
4bbf07bb7ee520e44b96ba1509f86f84aeb0fd23a59f01d74885992e1f45e20a
BlockCypher.com Blockchain.info Blocktrail.com
Fri Dec 15 12:00:01 UTC 2017
List of files timestamped in this transaction:
  • xileh-dehul-cored-cinyz-sovyt-disun-nurom-himec-ducac-mysiz-hokot-pohen-rymyf-petar-didem-keniz-zixyx
    2017-12-14 12:15:32.0
  • xulod-favih-vaceh-devod-zured-lizer-bigek-famyf-nofel-tuneb-someb-cunyp-capyd-faluc-tuhoh-fyhes-pixax
    2017-12-14 13:26:57.0
  • xonop-fyhit-hymyg-micib-kofif-cubud-zacyr-ronen-savav-zivov-cazev-camac-sabil-hizok-tyvob-fufem-koxux
    2017-12-14 13:29:08.0
  • xirif-konek-lumiv-mudiv-huhyk-debyl-zaruh-tebat-sural-lyzib-hugic-retif-dabeh-revav-cinup-tokep-baxix
    2017-12-14 13:29:13.0
  • xurim-fidat-cekyv-dyvyf-vazig-biroz-popyv-pyrom-bisop-tonet-covop-dufup-demup-kezag-nynaf-kovep-gixux
    2017-12-14 13:29:18.0
  • ximaf-kecur-sezal-kodig-zyziz-vitaz-tutys-holid-gydah-fudaz-zituh-muvog-zynat-dymyn-delyk-pocyp-duxyx
    364Ri7eTi9hnuTfvySN1xwfGT6xwhFxooeEed8H
    2017-12-14 15:33:48.0
  • xikeh-hybef-vamir-ledef-duboh-haped-kuzyp-pyvag-dusac-fohih-papuc-bofyf-cyput-povog-nalob-fovin-mixox
    2017-12-14 15:59:06.0
  • xisir-febiz-vibih-gabok-varol-movuk-dynez-darib-dalut-tuzoc-macis-valup-lysyv-ducit-biden-rybut-nixax
    2rVTZK3YrUZJmijTqQHWRWQQyWyXXdR4RCCtgGi
    2017-12-14 16:26:17.0
  • xosim-goruh-karyt-bidir-keter-cacub-pyryk-pokog-mysum-ravam-torih-pyrer-fafiv-tedas-zyvyb-zeset-hixex
    2DDCbUqPENoMD5AefgYtNj2UeyEctcQMXVy4t8S
    2017-12-14 16:41:37.0
  • xuvet-visyd-rogud-giruh-hinub-lypal-lilam-vyfot-lamar-zocob-tiner-nahad-mygoz-cusiz-zybid-kutyl-syxyx
    2M81bEMVky3rT8s6hxYvRSRZJEhS4LjRa6CP3KV
    2017-12-14 16:41:41.0
  • xucop-nelah-kynog-nirig-satyg-narif-tidon-lozec-lesih-bigok-pigiv-setib-cyfov-foker-vavep-hosyg-zuxix
    1j9i6qGpBeYZr9bYugBeKxNyMcvFcxcCFWSfrkf
    2017-12-14 16:41:45.0
  • xigaf-kugoh-locof-fyhan-tykac-guman-pahor-zefus-sagar-rutos-cokez-bupur-lyfab-bipub-bikyb-batip-bexix
    3E1Y5uE77nvxkpQUaBh1XXy1YCTEHfSAXM3w6s6
    2017-12-14 17:57:05.0
  • xofif-valov-dimud-vucec-fyhop-gigar-dotok-cigol-rakit-dymih-cytuf-pesib-gafov-lygyb-bysor-fedyk-noxax
    2rAddhLyeUXXTdhzzkmU1cdKWyLWcYimR1dJ3xp
    2017-12-15 08:02:23.0
  • xorer-risap-hekes-sunap-negib-perul-hymuc-nased-lytim-vozen-zeren-mokun-sacyt-zosaf-musyt-perec-hixex
    17rDy8p7Y7EVCNdNijKnprsby5jUPT8yQpMJcqA
    2017-12-15 08:02:33.0
  • xubih-venyg-larag-mukib-bihut-vykib-zubig-lynip-sarod-nanun-cohyb-nabug-nenyh-vytop-kozem-lyfiv-saxex
    2017-12-15 10:50:30.0
  • xunan-pyfun-vobos-neliv-vinop-razoh-bihyf-sebim-vamig-vopet-nufun-bomig-gecyc-nezyz-gukaf-lobaz-sexax
    2017-12-15 10:51:51.0
  • xutis-tohuf-gobis-pibik-gozil-rageh-ryhoc-tabok-dokin-desyt-dolok-nypop-kedaf-fynys-cigaz-tetes-kuxax
    2017-12-15 10:51:54.0
  • xovad-nosel-silep-sykab-folaz-pinez-gudak-hysiv-gilod-vikik-taros-zacyk-tilid-hepav-salyf-kirod-haxix
    2017-12-15 10:52:00.0
  • xocaz-nicuf-zapam-ryvaz-vafyv-vevut-fibyt-bimuz-milom-dosep-docef-mylel-sizog-gakus-dykyn-kuked-bexax
    2017-12-15 10:59:12.0
  • xotot-nylen-momis-nyfob-dahym-tibic-ducib-dyduz-hydun-latas-rizeh-beter-hulyc-lykiz-cuvih-furog-toxix
    2XuMPzXSb6QxteygTkgZt4TYvWPaugqmc6CAM5b
    2017-12-15 11:02:17.0
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.