KeeeX Timestamp Certificate

1bBrurUJ9gRALahBXWtnJjTXGe97BNTkwG6cjTC

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 1bBrurUJ9gRALahBXWtnJjTXGe97BNTkwG6cjTC.html

1bBrurUJ9gRALahBXWtnJjTXGe97BNTkwG6cjTC
25579dc748258886343669d0220df5432e871c01b6486b03058f48b07a90040a
BlockCypher.com Blockchain.info Blocktrail.com
Sun Aug 26 14:20:30 UTC 2018
List of files timestamped in this transaction:
  • xuzes-hityb-kicyl-zodyc-gysop-luvuc-davah-catad-celul-rikyk-fuhif-somah-pecam-mugit-dihor-nyloc-paxix
    1zqPHBpghnUabcDhdguMRGpcgFf6RpJpX4PVcUP
    2018-08-26 14:10:51.0
  • xunan-pytem-genaf-lecyv-cavuv-cutin-sikef-nivad-hyhac-banad-myhar-lezab-dinyn-cagyn-hukar-focuk-gyxyx
    2WQXozDqgYKHWMLt8UfDwq3jZomVcuxK3HSW3Zc
    2018-08-26 14:11:39.0
  • xunin-fuvek-kerag-rucur-supoz-mivup-fupiz-tomak-calag-gaper-zapaf-lehur-hyker-zilep-sesov-bakyp-syxix
    1TQMqmQPgdgv7DbgU9W9UHt7PhSYFHJ3iNPvjan
    2018-08-26 14:11:53.0
  • xemen-roryv-gotit-hibyb-cozec-zykor-bilan-cifer-dikis-kutid-kityv-femal-bazos-pizyp-gezyd-fasuk-bixox
    2JiHEZBMCMtFqjKX4YxS2KagHxSX6GxnrBtKyG9
    2018-08-26 14:12:18.0
  • xipih-havil-mykar-lulyd-hofec-muzam-bobik-kelas-zukih-zuzut-rapis-nomih-codiz-pudak-vumad-vorik-vixux
    22rhAAHwoSeC7hbQqGTES3kJR3x1n5v3JaPJk9e
    2018-08-26 14:12:31.0
  • xuciv-nazag-cotyh-syvuk-pymav-biriz-bilor-zylem-mifah-rarat-didul-telup-vafum-kytyl-kepev-titas-rexax
    1oA78z8pxghnffM5329sEUfaxuuJEsjMAhmWN17
    2018-08-26 14:12:49.0
  • xesep-hurid-fugom-gahop-sorim-kezus-tidym-durit-cubat-sakut-vuhaf-vekez-tocev-rohoh-lekat-dafyb-vaxax
    2GEDCjVFnRJDtwRVSL5s4o9SDPr2v5zqErvgbHk
    2018-08-26 14:13:09.0
  • xoteb-dobig-zonum-lilav-tycez-dykuv-davuv-gozal-fyvab-hopeg-lizyl-vubip-myrop-nukep-fagys-velym-rexux
    1GxyQYGNyh9xs2pFEgR1L22hxz37MPAadAQst72
    2018-08-26 14:13:21.0
  • xigil-pynuf-tugil-mifem-vutok-supon-hygoz-cazyk-telap-zymiv-zuton-cular-nyfok-hovid-cyran-dasas-kaxux
    2WtKViTGpX9L4LFjBPjBxXde2sp9cdajyPVPv7f
    2018-08-26 14:17:57.0
  • xipil-danez-nusid-pumus-raveg-rizih-byhem-kilyd-gikyz-kefec-cyvut-vurep-kocip-rubem-gobef-hikun-hyxax
    2v71kQiG13y1rnJGRSikNqbG9B8z4hZBdne9oXB
    2018-08-26 14:18:20.0
  • xuvoc-maras-namys-rosyc-neged-dopuf-gomas-hinun-nusen-fepot-nuvuv-luzun-rahyp-zihul-zukec-baloz-gixex
    1dQnB4BsVix8GQcnPmoLAyd26zMVe1fKfkzifGz
    2018-08-26 14:18:33.0
  • xekid-hinub-zudef-kavac-libon-vuvom-nemyl-lakyk-mutod-zivap-tefyf-bihyp-nopuk-tyfos-pazev-hefyt-cyxux
    3BeBZ2VDk179WgVY8xYcuhtVSMC5kKXGikco7py
    2018-08-26 14:19:04.0
  • xeboh-hufac-bipym-kokil-tyvod-gihap-fycon-kumep-hunam-siseh-debig-gybeg-cifut-vunah-sifik-hepyd-zexux
    32yey2VLv2E5ghDxdbLgoY3rf3vAwQdYLU7tdKQ
    2018-08-26 14:19:20.0
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.