KeeeX Timestamp Certificate

3Nrz9A5oPGdpUEr2J7hFEd4geQsdqojCeyFFtsB

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 3Nrz9A5oPGdpUEr2J7hFEd4geQsdqojCeyFFtsB.html

3Nrz9A5oPGdpUEr2J7hFEd4geQsdqojCeyFFtsB
96f799dd77968a4fba6a664e97623ff02e130ac482db115aad3863d138d4246f
BlockCypher.com Blockchain.info Blocktrail.com
Sun Apr 08 00:00:01 UTC 2018
List of files timestamped in this transaction:
  • xezol-pamyb-lyzok-vikul-rozik-tevur-bovah-fevel-sabym-rylos-hykyz-lahed-micis-gilok-nokem-tonyz-ryxix
    2aNBipTPu6ikJoEzh6u7KV5mn6j9YC5jhEzVgPb
    2018-04-07 13:33:10.0
  • xoliv-sopic-potoz-gidyb-doper-tedem-genen-fikac-lusuf-gocip-dymos-bahat-vymul-hasyf-horat-cunob-caxex
    1T1virfvHgbEzv67ZoFsJJpxzSepCzMkXRJTtMe
    2018-04-07 13:43:08.0
  • xurog-vakak-hyfug-resaf-gorip-likib-gigir-cudus-rorak-ludap-lyfac-begoc-siliz-cefag-cafyf-dagep-rixax
    3G68teZCfqEZsNNdSP93DmBPDLrjnJq8oaBk5jm
    2018-04-07 15:09:22.0
  • xefod-gitep-vygic-papyp-pobob-padir-duren-firif-dacon-nesyl-mirum-hogut-tavil-fipyk-cabug-fylec-roxux
    2GtjSfU4nYk7x8gtALMyZxSGkxnsTEjUYwYiHNP
    2018-04-07 15:09:25.0
  • xetig-nahet-gifys-matoh-rutop-vetol-gapog-gegif-tobuh-cohuh-bopur-zosar-taric-hynam-cozav-gynih-rexox
    1PBbJYs2hXCiEpAkuxXkj13C51MCChmvFfZwekX
    2018-04-07 15:09:35.0
  • xules-lysaf-nodyg-lofah-gamop-kagel-repir-nypah-lobum-tinon-conoh-zofak-kobyv-tuses-loseg-ciped-sexyx
    2hvihVzQvoKoPUzxPs3ScwazLpDW4mfLMo5zQyg
    2018-04-07 15:09:39.0
  • xoliz-lozup-lemyk-sekod-dotil-hyceg-mecut-hecol-rurik-zasec-tefug-byfyd-disut-zuzyn-tacon-fizic-lyxox
    2CePHuv292N5FrQFc7qGgLZPjtnfj5H9k1nX5uU
    2018-04-07 15:09:43.0
  • xudin-mehab-fabor-tipyz-nirim-pebel-laryd-pyvic-cipak-cusob-socac-cyniz-tunev-gelas-lonyc-dizop-tuxyx
    3dFtR5BiTg2WEnCtkH9RV8NomFdopdHVa4zmHG6
    2018-04-07 15:09:47.0
  • xetoh-casol-vohog-vatof-dudyl-modym-motes-rimoc-kicog-gicad-zutin-lalif-lysef-horav-musac-supym-koxex
    1DjqreBjH8M4pDzzDsJPod9EHd6Xa9FTtYDMp1x
    2018-04-07 15:09:52.0
  • xicat-linik-nycig-mamob-voryv-futoz-zuloc-pocog-kobec-dyver-tikuh-vanib-lurut-lalov-kicul-hyrim-lixax
    2mQfWSCasgbwzM8UKcvCEZ5L8BJuLy3d6NRqbFB
    2018-04-07 15:17:58.0
  • xefac-ripos-debup-boteb-dunun-tuzyt-guhor-kevoz-gukud-fenyz-kazyt-vuvyh-sycuv-pysed-zezes-cafeh-pyxux
    2e9YQD2tzexnxLM1BAWBJWddg48NiKnvrLXnhNa
    2018-04-07 15:18:03.0
  • xirar-zenot-liluz-patav-raryk-zimub-hobul-bygis-deran-lebys-varuf-dovas-zapaf-nenyg-vurec-dogyl-lexux
    3PGq3hBj7utdcQKXGqDE5VyR2FapHFH8F1ZN5Uz
    2018-04-07 15:18:07.0
  • xizol-buzit-kopyp-bedyd-fitok-dizod-ligut-dudac-hibim-hokuz-gebur-nigez-nyhon-fyguk-fefuh-cefid-pyxyx
    3418NcVFneuRTGUozRb5EjUChASmrD1ZXDU2vrD
    2018-04-07 15:18:18.0
  • xibes-zopyg-sefah-fagar-zoton-vymun-hupis-hehyp-gutag-zefad-hafac-cyvyd-hizut-cehac-cotit-pihud-loxex
    1j7SELhi7uEK5WNAjL6ttgcNq1RLYge8yQ4y3tm
    2018-04-07 17:08:13.0
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.