KeeeX Timestamp Certificate

1wuAGWcGhAz1erPxtUUWCwstWzABhVSgkjMx4GR

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 1wuAGWcGhAz1erPxtUUWCwstWzABhVSgkjMx4GR.html

1wuAGWcGhAz1erPxtUUWCwstWzABhVSgkjMx4GR
398fbedbaa8868568707b5d1b57bb182008f922a81c912c2cd487155ab78c777
BlockCypher.com Blockchain.info Blocktrail.com
Mon Nov 20 00:00:02 UTC 2017
List of files timestamped in this transaction:
  • xucof-ryzyb-lyhen-sepim-hilah-hopuv-numun-zanig-rumap-nukuf-napeh-vohav-gybuk-sukyg-tapor-pyzyf-rixox
    2v6Wq5Jz1PqgUrPkSiEANE8kR1E4JZuLy3FwKHU
    2017-11-19 12:46:00.0
  • xemir-hyhaf-vekuc-ruveh-turek-dosap-habus-bepov-zozip-banuk-nynuf-zyfut-segyh-zikyt-ravoh-zecob-vixyx
    1iay16UdHpyBmmJLDod4CB9tGuphxUD9ZFGzg6L
    2017-11-19 15:29:01.0
  • xufet-tyhag-gevom-pobil-tonyb-duduf-rimok-rofil-sisel-ralyd-vidoh-lakip-facuh-fikis-nytyr-barup-moxyx
    1Zc7ztEEqw8b14zF9WGDrvbMDkFjFvRZ2fja51f
    2017-11-19 15:29:22.0
  • xucab-bogez-kifev-diren-mibyd-fisod-ceceh-halit-vudif-nybur-fokyv-dudal-cylyb-zadod-bagek-cyzul-kuxex
    23K4chckuak3ibv1jT95u6Avm6Z9dPQW1gRfL5J
    2017-11-19 15:29:39.0
  • xuham-sufit-vukys-golol-cahal-fikam-nafoh-bagum-patuk-gusos-sozuf-mufal-rilyp-kapur-bezec-hesih-puxyx
    39HPsHriRTS1oUq3TMcrig6Nh9fkX64wMRW6Ktg
    2017-11-19 15:29:51.0
  • xozod-pazon-sinin-buzak-hyvab-zuveb-tygep-dilit-kifac-pydyf-fohuz-kapig-taryg-lefov-niryc-nadom-hixox
    19McaPepYsT26crPqMaUgsymUdRD9C1EiEJczkK
    2017-11-19 15:30:13.0
  • xenot-luful-makos-birar-ceguf-kemel-bataz-nudob-tagab-gepid-dabon-sedif-resub-tavyf-resys-sycim-zyxix
    2df4hgaWSaBi1tSfSaL5Kascx1uUAn2yZW2Ge1r
    2017-11-19 15:30:30.0
  • xodab-hicur-cakor-dyses-nedem-zevyb-nulug-nasur-lelam-cucar-kulav-fevav-firiv-vatah-zokul-kihav-noxux
    2Z8z2v1v4BNKivLDWrcyiG8W9gWMvZQmMqbd9Sk
    2017-11-19 19:17:39.0
  • xefon-tufoh-fukuk-cymis-vasir-venuk-nymar-detif-gasok-pybaf-kihah-dekyk-gucyn-sococ-nomab-tahar-caxix
    2oShQ2ijtA757Lpww9wnU1Kh8wgHtExUKEvXBLm
    2017-11-19 19:18:00.0
  • xefar-pymyp-zokag-mohen-comal-tinug-vazan-pygov-hysaf-balof-telok-kimor-vetuz-bopad-vobev-gosab-tyxix
    1LKwU5R57MP5VkahVLiRwdUMEQa7LysdGwLUw4h
    2017-11-19 19:18:13.0
  • xufah-davot-tobiv-gigeb-vynom-lygeh-dydoc-gytug-hisem-limih-fuvoh-mecuz-rovoc-hatun-netuh-hovyd-nuxox
    2rafqDTED78VsqpneXf7TjNoMAhRzgGdBJNQ72c
    2017-11-19 19:18:20.0
  • xicis-rusyk-kylul-tavyr-ripis-gidog-sizak-besac-mybab-camef-kobyd-gesyn-fomyb-vipib-rakip-nusat-nyxox
    2MUYboqJTHv7CGoMNcwJeDFVVNtkSHb65Qgsdxy
    2017-11-19 19:20:07.0
  • xutas-fefeh-vakyd-dylos-lofos-mynug-cabap-fozim-citak-fuses-zygak-civuk-ryboz-zifuf-vumag-zafud-pyxox
    1VeWUXRXT4UKJUXn2Pr6c5vn1EoknE7eQkocz3t
    2017-11-19 19:20:12.0
  • xinel-danyk-tyrug-renop-facek-kurud-fylib-decuh-nihyp-nobih-dusas-fukip-gimyr-pinab-kybog-cutot-rixex
    3D2TJJiUqsfwKQoZinyxqy3DV7LadLKpQnJwMrp
    2017-11-19 19:32:42.0
  • xolit-pucyl-fezol-nogan-lekiv-rogap-vyvud-ligaf-lakuz-guhab-ratep-bygin-hyhif-mamyk-zafen-nulos-duxox
    1mfwgYNKLxNpkGp5NvT8tMisRtR7WwVM3R883Rm
    2017-11-19 19:33:07.0
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.