KeeeX Timestamp Certificate

26gBWHnAU5dwp8kpc8CoUBUmzoL8PBRCvaQ8dZ8

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 26gBWHnAU5dwp8kpc8CoUBUmzoL8PBRCvaQ8dZ8.html

26gBWHnAU5dwp8kpc8CoUBUmzoL8PBRCvaQ8dZ8
fce3ab3d6fb3809f3186627f41b8377eddaaf2b013550a74964880d990327c62
BlockCypher.com Blockchain.info Blocktrail.com
Thu Jan 25 00:00:03 UTC 2018
List of files timestamped in this transaction:
  • xitiv-fotik-mocuz-lygos-syvah-pytaz-kiket-binam-vehoz-hegig-vifum-rovog-galik-mezat-cediv-gufeh-ruxyx
    1EHnK7L3SxdNXJ4BTGdCMRGvzYGpn2zFVMLextN
    2018-01-24 09:01:22.0
  • xecib-cagyp-pyges-typul-kotih-tolib-zehig-pefoh-moret-ruvek-nuruv-zutan-patar-robeg-somyt-cycat-laxyx
    2kzq3Q68svkkGTF53ABfkSxM8ZVw4A4a2skKCM8
    2018-01-24 10:34:11.0
  • xehid-kymud-bihik-zirug-tibag-becyc-cikyp-vadyc-nebyk-gerom-mihuc-fetyf-mavim-fezyl-bacav-salyg-toxex
    2G412ysAp5rYQf9Ju8Ysdj9wngqU1SzWXmpfFcB
    2018-01-24 13:41:50.0
  • xipah-nibap-domum-mobam-hedam-lukeb-runum-cuzoc-botym-vebah-hemof-movib-duneb-fokys-nuber-mohic-naxux
    1HhFj5mwrbHFmMr1KGjeJBRki9i7LvDYxnv1KHR
    2018-01-24 13:41:54.0
  • xugit-cumef-kezil-nefeh-luret-komad-kepam-rafoc-gobif-temic-geror-hehon-sipir-rymyf-potin-sedol-kaxox
    2018-01-24 14:42:14.0
  • xubiv-lapop-fimyd-zogyf-lubil-zytis-mihoc-zabyk-duvok-tyceh-myfut-hikem-byluk-gohym-vatik-cikuz-zuxix
    2eFZh6jmDhZhKwR6FoEMw6Q9kRpUyrnRuHDJxDc
    2018-01-24 15:05:38.0
  • xodep-dyhub-monyr-hytez-lomym-fyduk-zipet-civos-gasif-cicyz-radus-dapor-bakos-vakor-gepak-hotyb-nyxyx
    3YfboUsH8jDYWd9VbTvBSMp3qBqngPih7s7v3gQ
    2018-01-24 15:08:05.0
  • xinap-cosat-mocog-rimik-hyfab-zeror-dagig-lacep-kuket-kesen-gygan-fepuk-narel-kapim-hihov-zyryp-cixox
    1HFHXhyEeYcG3m2s7azde5MUF6Vb35kbdDUfTh2
    2018-01-24 21:03:35.0
  • xovop-zeruf-tytyk-sufyd-gisel-zerop-cizin-kynyg-tohef-sutem-fehus-batam-monev-puvud-pytak-keraz-nyxax
    3N7p9NqEynqCryytEpLuWCCDAf1T86oTJ5QRA5H
    2018-01-24 21:04:25.0
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.