KeeeX Timestamp Certificate

1tZ6PsmKVW3NSBKhCdtiFotii9HkHApkgtrrvF8

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 1tZ6PsmKVW3NSBKhCdtiFotii9HkHApkgtrrvF8.html

1tZ6PsmKVW3NSBKhCdtiFotii9HkHApkgtrrvF8
9570a7adb378696b070df0c34dfea5fb8515899ac10f1aaa866eeabd1acd0497
BlockCypher.com Blockchain.info Blocktrail.com
Fri Aug 11 06:00:01 UTC 2017
List of files timestamped in this transaction:
  • xikos-kenih-kanyt-bipyt-sahit-lulal-dozor-fylul-zohib-vebah-nykun-hozip-cehyc-pevib-ripam-badur-hexax
    1s72W9JBnhqotmBe4XZ4H6fFFmY3ntnKzGjKZT7
    2017-08-10 18:46:00.0
  • xozed-lizeb-sohyr-zibud-harag-rinur-limyt-magyv-rubim-fuzos-zamup-hatob-davek-fogyn-kilym-zigeh-laxux
    2BbWhheycPQdzxd6Py1J6cWvPs6qVTHTaTXXeQm
    2017-08-11 05:26:59.0
  • xurel-cevys-cavob-lozeh-nyhul-nakum-folun-rihyd-fidyg-cymom-vipif-melih-cufob-gituv-vytem-havup-kixox
    1c9um9EpmPWgWek4a1KeLnWHmeyjg7iHi3tUhSc
    2017-08-11 05:27:06.0
  • xucoc-tyvyl-zigil-guluv-pumib-masyd-dyfad-tynuk-vutyd-fahys-mucen-tivyg-votys-zusit-vyhup-muzoh-luxux
    2qP4kTbDJxZG7fqH6AFqSgcXD3BR9YY6VErsvby
    2017-08-11 05:27:10.0
  • xevob-zolag-vylus-zylaz-habym-fotem-rubit-porez-gacat-cyhis-cided-kuvab-rahir-fobas-hasam-rilih-baxix
    2RNThyZLFV8h17TqjUS87tfEArMCHcsajHkNtxh
    2017-08-11 05:27:22.0
  • xudob-kecal-mypez-rebip-bukip-cezef-zelav-sunub-tozyg-logos-ficut-tasac-sagir-nomiv-cakig-nifuf-ruxex
    1Kxajgaz1sxMtG5y7GUwfZW9W6KosTSRyJy74RE
    2017-08-11 05:27:34.0
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.