KeeeX Timestamp Certificate

1na345NbL1FTB3JzXDQgoLSSCGw7173h17fyJRx

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 1na345NbL1FTB3JzXDQgoLSSCGw7173h17fyJRx.html

1na345NbL1FTB3JzXDQgoLSSCGw7173h17fyJRx
9623b5ca5e987ad88821b186ba73c833e1c41e6ac219591a06568924cdafc80b
BlockCypher.com Blockchain.info Blocktrail.com
Mon Oct 09 18:00:01 UTC 2017
List of files timestamped in this transaction:
  • xozob-puduk-lyher-hydav-deneb-luzyn-hycaz-husep-zozym-pybyl-purul-rirun-misit-lolit-nidel-vamim-gexux
    2017-10-09 12:18:44.0
  • xifap-movav-fezyp-bemup-gosor-rusud-kakic-fydod-fokur-nidel-tadih-dybap-mepis-fyvac-luram-selon-kixux
    2ZXaVbcjWRKUQSNSm8FEbJuUNiGHst9kgZbkRae
    2017-10-09 12:56:12.0
  • xupon-hylas-somog-vycir-sohyn-nokih-gydaf-teryc-lozig-dimir-lypov-zenul-vyfit-dovyp-kunek-hefud-maxax
    1P6zpzJEZWYP289vFUAbby3JCGdN9yf7b9kzviH
    2017-10-09 13:04:54.0
  • xidoc-pevim-fubic-bibyg-cyvez-tevef-tovor-kimoc-kanap-sykeb-sicif-lyfid-kosok-hunen-suhek-begok-rixyx
    3MuDRweA14DKp33LKYF1TbcfRTcvjKsGCEmZDeP
    2017-10-09 13:38:47.0
  • xorez-vecap-zyhyb-covud-dazod-gobyb-cumab-vutef-lehor-vilip-tesib-kasad-duros-rukes-gegom-vopuz-taxex
    2XyjGc6opQFFewoTvLHWPozxicHTbFzJEJJp84J
    2017-10-09 13:53:03.0
  • xecok-timab-hizil-gekad-rezik-hezuh-sutof-tavuv-nifan-fyvit-disoz-tityp-gufuk-zopot-luzyp-mozib-kuxyx
    2kTFSsk9gX9uitE18JV7S1DqHGevY18WLnAyx5b
    2017-10-09 13:53:40.0
  • xofat-vonac-ginaz-zupep-veced-diguv-leboh-dehin-helyk-menik-burig-gidir-pigek-zonec-hukor-busob-dexix
    1FUypzw5aqRdG3b17HxEsD4bLPQ875jDT4SQycw
    2017-10-09 13:56:35.0
  • xocen-fosit-baber-rolyc-bedav-vynes-bebec-zezov-lahec-bozot-biteh-bynih-penut-picyb-suguv-kukip-bexix
    2czWcDWVthCi5oMJGfw9VEqG7RTvyuHKZQfYzN2
    2017-10-09 13:59:33.0
  • xulez-carap-fyzam-supyf-byceh-cukab-bivyv-nenuk-nityb-ketit-dugol-cilos-darut-capas-fytov-myvif-vyxyx
    3XpohU6sRFCQDAa7Qr6G2MCxenupEWB5TVVFZEk
    2017-10-09 14:00:52.0
  • xofel-nymek-mihaf-zohim-vazug-vacac-zyluc-medar-gynof-zyvog-vuzik-deten-hyzys-copiv-vucip-dakyc-guxax
    2iuNRP1HWV1gmW2E7esKxyyfU674tbCa92XULyS
    2017-10-09 14:01:51.0
  • xesec-gyvif-myzar-cycer-sikon-milad-niluh-gupap-zyrot-fyven-tihuc-nahud-dytut-mibag-bifav-folem-paxyx
    3MVRmWbzabc4QgAguE34avyWPS4Y7CAzLiczXcg
    2017-10-09 14:16:38.0
  • xizav-cimyp-dopoz-gogip-kasic-gukac-batop-ducod-resas-dohyf-razif-rugeb-ciruc-momik-vukyc-gurar-naxex
    2AdsTWcSHNnyJ4uS4CwHLoMN5gGgDE7AK3JEzWd
    2017-10-09 14:17:06.0
  • xudat-ganef-zydot-zalac-vomeb-nyzec-pinef-hiruz-zocal-fibih-kemyn-rogir-tynan-kamir-metig-vazir-haxyx
    1uPF1NiWGCF32ShbUVT72eKYkmWBNih7VcM3v3p
    2017-10-09 14:18:44.0
  • xufog-pupor-hofin-nasuc-kenin-tidig-dibos-lebik-vovig-kezin-dodyc-vegah-ligoc-mimun-cenuz-gynyd-vaxyx
    3WtU3d47ycquPeFN5Kf99w1pbKnCqpNA7T3MV3f
    2017-10-09 17:13:49.0
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 6 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.