KeeeX Timestamp Certificate

1a49xwNYzBLPyEjaRRfg8XPJN228t1Ese69WVT1

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 1a49xwNYzBLPyEjaRRfg8XPJN228t1Ese69WVT1.html

1a49xwNYzBLPyEjaRRfg8XPJN228t1Ese69WVT1
b166fcf211b2caaf624337019e61a21c6182fd122a68cc172812bc6b06ad8915
BlockCypher.com Blockchain.info Blocktrail.com
Thu Apr 20 09:00:00 UTC 2017
List of files timestamped in this transaction:
  • xozes-rigur-nisug-dyzuc-fylis-doheh-gyrut-ludor-kalut-ciler-kahyp-zakif-virog-mykyl-vihod-zenet-vuxox
    2cRNDUQZEAbWDYdFPvzqVX4QWqp5hChcEfhBBQu
    2017-04-20 08:57:17.0
  • xucif-hutez-totel-kesec-fuhul-govan-ticec-pogut-kilel-hafyc-lipyv-kicyd-vygep-mabav-genat-fyric-foxux
    28KmsxjM7VGDW69YsnLN2FSVxzZxrv8vsLq7T3Q
    2017-04-20 08:57:22.0
  • xoboh-tupek-bupap-nives-nadiz-synyf-rygiz-kefos-hysyk-gacer-pagiv-tuvem-rukez-tabyk-hegez-pobat-nixax
    19XXsN7vUYUhxBSLztsMcjnK5DegNBJVpc2NiW1
    2017-04-20 08:58:11.0
  • xudip-fysep-cukon-gufep-gyduf-pymob-tokas-mydyv-kicum-ricic-cegub-nuleg-palys-votyb-gygyz-fehef-bexyx
    1fjENZQie9GgxVZ6PHfUwVSPx5hvmMok2exPKit
    2017-04-20 08:58:19.0
  • xitik-zalot-robep-cagyp-gacud-nymyk-folel-rysyh-tyced-zipiv-redis-kifan-fupif-kakud-selyp-bynun-zixux
    1xLCCT3A38vVFf8QMuw64g9QPESA6uTdFX22DuA
    2017-04-20 08:58:28.0
  • xezer-mymem-dorap-mugif-pybuv-migim-kosef-denaz-tymah-dysyz-ceryb-bubac-kobum-lebuk-nukam-fadot-pexyx
    3B2Lt1txjvZQP2Sh319YhMjyXLp1hoZG8aHyko8
    2017-04-20 08:58:37.0
  • xuvit-rihyk-cakuk-musin-guvov-fyfeb-zesak-kukag-lyvib-tedec-buvuz-panyr-gukul-gines-pofub-lunah-cyxix
    34mCLCAtgvGBo3QcQQxzy4ers8dqgFpUD8YH8wY
    2017-04-20 08:58:46.0
  • xotal-dypob-cinak-terit-fabyk-talym-vyluc-rucuk-renym-baron-zonab-nesed-bebyb-rymuv-zyful-lokit-fyxox
    37p7bj1JCt4858mWCcz6tiN8bC4nonhqT35AniW
    2017-04-20 08:58:54.0
  • xogis-dymyf-valiv-zokos-betev-kavaf-gubon-lohig-hytez-cupiv-dusol-ripal-decuf-sybet-humus-haluz-fyxox
    3JiY9zs4mdJiVfbQPGuzaDvh2Vydy5wtg4VgBGQ
    2017-04-20 08:59:03.0
  • xorah-bafas-ferav-bukan-divih-kimop-vafyk-zogop-rumaf-zytyf-hybyg-tizuf-lapal-romap-bipok-zodek-toxyx
    2FMDTYUyAn9PySqFrTsWuAimVUnLEJkG8v2FG9T
    2017-04-20 08:59:11.0
  • xumab-kinit-nuryh-fozok-tukyk-lacek-fobug-gokon-nesol-mizep-kilag-dipeb-hynar-gulyl-gozit-ryfup-kaxax
    2EFJoKKSs9rGLKH2Wg5XzNuWRQefVZ158cpvf1M
    2017-04-20 08:59:20.0
  • xucab-cyrob-byvud-decov-nygem-vyvyb-tuvuc-raseh-butet-syhyt-bakab-kerez-zazyk-kinac-remih-fofob-fyxex
    2FEaQCKQifwFJGpmGBA9fkcXfWEwUBH4qPaDT4X
    2017-04-20 08:59:29.0
Technical Explainations
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 10 minutes, to ensure that timestamp requests enter a block as fast as possible (on the Bitcoin blockchain, blocks occur every 10 minutes on average). 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 40 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 below 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 had 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 id is 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.