KeeeX Timestamp Certificate

1MpjMPqgBTusciUoGVzTPrXLMkMHDvgFWijfSRN

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 1MpjMPqgBTusciUoGVzTPrXLMkMHDvgFWijfSRN.html

1MpjMPqgBTusciUoGVzTPrXLMkMHDvgFWijfSRN
37d66e4989ee8142d2f0c9983356b211a9d98741d3af24f10e1e645d1a05b1a0
BlockCypher.com Blockchain.info Blocktrail.com
Sun Jan 07 12:00:02 UTC 2018
List of files timestamped in this transaction:
  • xiral-metil-nozul-zyzit-vonon-rigyd-guhih-lotug-bubav-bipek-lyner-memos-hyrit-fivuv-gusar-tanig-tixyx
    3PNUnRLhjxh7NXZCDjQJzbvXtzUhxKDkJv9R74C
    2018-01-07 10:37:34.0
  • xuvok-sagas-vytyr-pedyt-zupig-zovun-hylap-medoz-vetad-movep-pehyt-namik-civaf-tupyf-byhuz-fohaz-byxex
    3BiLVKssdciwuzNvvz4ghHRv2XXZ6dDh7Tx67HY
    2018-01-07 10:38:22.0
  • xecet-tabuk-gused-hesic-zuvyb-lyhil-pacod-medaf-vinub-lyzyd-vapin-nelil-rybem-bozyr-duhed-cinok-pexax
    1z1Mkx9E5jiHo6o6tHNck6nMjm92SmxWzpmgYsC
    2018-01-07 10:43:53.0
  • xuhot-lopen-vypic-vimak-zurok-nesup-gozes-potis-tatep-kosym-sivip-gyryn-pemer-mapef-kabyv-fatok-boxix
    3CtSbSxggBPYAmG1pSYNqKLpj9YaUEJY4tYqXUr
    2018-01-07 11:41:42.0
  • xibeb-fesac-rozac-polim-kakyh-mebil-macep-fysed-cubav-bavoz-sirih-rubuh-cynip-lizin-savuv-tofoc-nixex
    2QA2qND8iHbVEuEL63d5CmSoJrEh4dU519jXw6D
    2018-01-07 11:41:53.0
  • xezez-fodaf-tysog-cerac-gagis-nazib-guluz-nogaz-henac-ryveb-sumyt-mypah-gucip-hasor-rucit-pityt-sexix
    3Uj1FWdb1hfSUpTaJvmb7TrVv1nxWLs7zAnXtLh
    2018-01-07 11:42:11.0
  • xugav-hylyd-levuc-digit-sogat-kuzad-casiv-doged-cudun-hynal-nygiz-diduk-bukun-zihun-dased-kitov-dyxox
    2eJ6LyzokT6tEzwn8655gJpTW1HrhAcQ21w31p1
    2018-01-07 11:42:22.0
  • xokil-nycyv-metif-typoh-cinek-lityk-degez-vofoc-setat-pafup-cynat-bocyb-kylik-gigel-vibyr-siguh-pexex
    14fMFwSnvGtPLrsb9LPkGaErYJp8iBawr9wVNa9
    2018-01-07 11:42:35.0
  • xezip-gobek-puzis-ryrem-vobus-nadof-dyvaz-sunal-pamot-lafib-vyzyc-paryd-pyhic-fibev-bihid-sukub-tixox
    1ume9i1P3UWbrc3UijZwXUkcCnayXoCns7LRwug
    2018-01-07 11:42:41.0
  • ximir-mysor-cibup-mevaz-zahan-rilem-nebav-bynok-kopyt-lyhir-runon-pumac-helof-nasan-cizub-kabon-cyxox
    3AdfVgcgnEZMA13k44xgnU7vpjMDZRrs4UQTZ6a
    2018-01-07 11:42:49.0
  • xokiv-sicag-lunil-gazyr-fobuh-gozab-rypos-roroz-cidiv-kifyv-teryl-cehuk-karat-bufun-tudur-dypak-vexyx
    2SFWGE2oTiWdkKGj2FXa6T4RUHBvzYSQrPu1DNL
    2018-01-07 11:43:05.0
  • xosed-rudyd-nocen-fyliv-mohur-tizim-fudos-satez-zysiz-zinem-tigyn-pecin-nogor-gokoh-lovac-pikyd-hexox
    2K1PS6eZTQf1CrZ6bHC6okmrNBxGad8abfRVJeo
    2018-01-07 11:43:13.0
  • xobap-symym-zubim-fadub-regur-rakun-rylip-kapug-mabut-nyned-vemyr-mevop-tazan-hyrim-lugig-femac-sixex
    1DvLkiWHoFxEM1bbQLEhV6wnrV2hh8DR1uRa6uP
    2018-01-07 11:43:28.0
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.