This document is a static immutable timestamp certificate.

Download: 18yGqwdFwgy1Pz3J4FSJyWMpzr2DjvDbwAyrwvf.html

18yGqwdFwgy1Pz3J4FSJyWMpzr2DjvDbwAyrwvf.html
54e27c5ef72828690b7b641e667c20376702b46cb10d76a7e099cacf5aba7ece
BlockCypher.com Blockchain.info Blockexplorer.com
2019-06-15T00:00:00Z

List of files timestamped in this transaction:

  1. xivag-bozih-sasyf-pitos-fymoh-nerep-fyhat-gofuh-hityn-labag-hitir-rivok-bahuh-kasim-kukyb-pivoz-gexex
    2019-06-14 12:05:52.0
  2. xukav-cirug-luhyh-huter-dezel-rocev-lybid-tehas-nucof-tilab-valyn-zufeg-nybeb-gycyz-sokos-mikaz-roxox
    2019-06-14 12:59:45.0
  3. xulap-covun-gutuk-gyfak-mamyd-pizeh-tidyh-zatih-vozuz-gogol-fugid-zidop-kymup-pacuh-zibeb-cubuv-byxix
    2019-06-14 13:06:33.0
  4. xidev-vediv-lapys-dozaf-daduk-zaraf-mydyp-vogyt-samed-fyfes-tozeh-gevom-badol-hosit-zamuf-topid-buxux
    2019-06-14 13:11:33.0
  5. xidik-macih-fasav-rumyc-zytyg-laceb-hudiz-leniz-zocem-kilis-nubel-focag-nimus-cisev-cebym-mebip-vyxex
    3BSCEWmc4fJmMGR5FPkfUuTbiDikdkE8EB7bLhL
    2019-06-14 13:53:48.0
  6. xefep-pimut-zukec-lafaf-komof-rafyh-dytaf-sivic-tedak-gypid-rugug-tytac-pesud-cipud-gekak-varyk-taxyx
    2019-06-14 13:59:38.0
  7. xupar-focuz-riben-salil-napad-hasol-pakaz-caboc-luhib-poziv-kunim-keceh-fugov-fonim-gigig-cacyd-mexox
    1st1aTGhRpWkhYajrbjT7HkpVUv2kEJVcCvpAr6
    2019-06-14 15:09:46.0
  8. xolel-sekos-gynyd-letog-nyhef-sicyl-funep-hamok-gasaf-tyfeg-vibac-ginyf-sanil-mapov-novut-lotet-baxyx
    2JK8xYbT9tBXojMah363r9Qby39UbUBuX4Gzrf7
    2019-06-14 15:10:22.0
  9. ximar-sunek-socas-pakyd-sabyb-hykab-kular-zamod-cyzyt-hugym-hamym-gunuz-gorek-forab-tovuv-fykep-vyxox
    1ENcnM4qSyxsjpA5EhAzxbeJFsfpzu65LUmxJ8J
    2019-06-14 15:10:39.0
  10. xisec-sypat-setih-decum-lifip-nabyh-cusah-cedez-kafov-nipib-mapib-pycuk-ritap-hocek-lotev-zoneg-cexax
    1GgY4X66Ecfo322RmnhaGo3QaLaA43K8QQTYiEY
    2019-06-14 15:10:49.0
  11. xodel-zahuk-suvib-kahoz-cyror-puzev-pigef-gurub-fezyd-fylyg-hobil-zasez-cudib-pugep-tozuf-hykur-fexix
    31ficWiz35KQmYcPbSMq5mcphNDfL6svW58NfQu
    2019-06-14 15:10:59.0
  12. xokom-seluc-diduk-zenoc-bekod-cekas-saryt-budab-vihit-kygud-gilyc-hamev-ninin-dygyv-calal-zidiz-coxyx
    2019-06-14 15:43:40.0
  13. xikog-vizon-symut-fezer-dymyb-syhop-sugon-lagog-locys-tylor-galad-kusep-kavun-bupiv-hosiz-vepot-pyxex
    2019-06-14 15:44:24.0
  14. xinac-paboc-vezoc-numuc-baven-lovep-lazac-kozyc-logyf-lesep-vysys-dymyd-misut-nysec-dylys-sical-pyxix
    3HNHXgX4BZKRWHjM8TfZEARUEpd6Q3urvwSsKz7
    2019-06-14 17:37:48.0
  15. xifes-zefef-dupob-natem-pupub-pesir-garik-fafav-kiger-mibek-zydam-bopyz-neguc-vemag-gevif-bikud-foxox
    2ap78rRwagfcZS3ArWVAJF1Hxk17RmqWKzUC9kL
    2019-06-14 18:17:11.0
  16. xifeg-ruzug-logyg-gytyn-desor-focon-pidok-nemiz-dahah-neloh-ditor-lyror-dipuh-mamok-tydym-capir-fyxax
    2mt6dycHXs6RdQZxb1D9T67xgoyhhYVnGeUNRAS
    2019-06-14 18:23:20.0
  17. xodif-tohek-gavev-kacyh-syfac-tuheg-vozyl-megup-ranen-dygat-duded-dufar-vilyf-samev-kevyk-fulyn-lixux
    2FMYDgCdLLvTAe94WxwsTNebTJTkGWvhX9Yubjj
    2019-06-14 19:02:18.0
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.