KeeeX Timestamp Certificate

2eHR92a1Qx3fMus2pDBzEhTqbX2Vnys7cqgGtv5

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 2eHR92a1Qx3fMus2pDBzEhTqbX2Vnys7cqgGtv5.html

2eHR92a1Qx3fMus2pDBzEhTqbX2Vnys7cqgGtv5
613b2333305e0dc0b0a929724fddd18ec25aa65f57513eb32e9acc6dab90f38e
BlockCypher.com Blockchain.info Blocktrail.com
Tue Feb 13 00:00:01 UTC 2018
List of files timestamped in this transaction:
  • xisag-zakaz-moher-semuv-rebiv-lupat-dikyz-henak-piguv-fovuf-secos-fakat-fitys-tiran-bygod-gymes-mixex
    3cGQs12xKy5zHDigTAAvpAdc7EDJ2Gq7eJYdjpE
    2018-02-12 13:30:44.0
  • xehig-durod-maluk-lyfym-puver-putet-mebub-myzes-nanik-dorus-pagez-mizos-rypyz-tivin-kekin-veguf-tyxex
    2UikbK765dYoqcSx4te79HPPrJdMjcerQnjPq3Y
    2018-02-12 13:36:10.0
  • xukel-hobab-kadyd-zudyd-vavih-sokim-sanoh-vekah-dopis-gonyr-bagyf-vevoz-dacep-mecan-vinir-dabiz-zyxix
    1J3FyCZqgVSU6pnmeaEEVXWiTBzr15AsG9z2QLG
    2018-02-12 13:36:39.0
  • xedet-tefiz-lisaz-zaluf-lukas-mahuv-limit-hazun-kazyk-genyd-lulal-makef-zesyr-levip-kigyn-racyr-hyxyx
    16MSDXGTg9MvwPPxPteksTPNzxyxvCSj9iduas9
    2018-02-12 15:20:22.0
  • xosoz-fokut-hadyl-fifit-fyzyv-byrob-dudyf-ginyp-hycav-farop-vedif-veciz-pabed-dahih-pakyp-buvon-fexax
    1GECCJA4KXu3DX4ZwoxwWDE4G4ZuqmasJnbeaDL
    2018-02-12 15:21:04.0
  • xufem-durup-mypyr-mikad-lizaf-sicev-sunyr-vodon-tozev-refep-vunus-pumut-sabal-hetyt-huvuf-nocos-lixyx
    2kQSFfWAmyM9RegGLMnprnV4KPcPKBFyfmW1k2M
    2018-02-12 15:25:04.0
  • xolal-dypud-higil-tulom-faneb-dypub-kirop-cuvoc-rybum-hydag-fodoc-dapuz-desap-tazeb-lutag-davuh-coxyx
    1qhmZ7xuJG5BRadsK2wnNYTms79wBDTGEKeJUwz
    2018-02-12 15:46:55.0
  • xogid-zedat-fuhud-feziz-vypib-conip-dycar-kivuh-tepet-guvez-mybid-bumom-comam-topoz-degyb-felom-caxix
    3CpC6ukFNFVQyFFzf3oN2KVwNau19roq2r1Fx3F
    2018-02-12 15:47:08.0
  • xotik-fudul-cihur-zadun-gycis-gonuh-zakum-cazur-venip-kyfyv-duhev-hypon-zydoc-vyhoz-risyd-rudeh-bexyx
    1TxsoC8gN5wrW3v8Ki6rRhjg1kt5Fv3NpwdzP2G
    2018-02-12 15:47:31.0
  • xepel-dumom-gidaz-cogav-pigif-simom-fytas-lamem-dubuf-tebaz-milyh-tylon-riren-dosyg-vyfom-vavin-gexox
    1AZJPdJJc6M7z2T8G5uCb1r2ZTcbZ1H1aiGW62t
    2018-02-12 20:09:01.0
  • xocif-suzih-busas-gavog-gidof-veket-lycog-fumah-dulas-vydir-voryk-fibef-kegoz-fabok-bedyt-ratom-kuxix
    1LuU8qWKrTY9T2YxHjw4hJvSdKpPeDp5QMnE957
    2018-02-12 20:09:04.0
  • xozez-negat-kopuz-dacub-curup-cacic-famon-lodyl-kataf-hipab-typef-fokih-levit-difev-nikik-fyzen-moxix
    3DRuqPBH9GpNnhK3CGRgBdkbwD5nTaoJxhVnBNt
    2018-02-12 20:09:07.0
  • xicom-civom-fygul-rolom-zosof-lybun-karuc-doboh-sapag-gagyf-cefic-napiv-ligut-byvib-vefus-nicyc-vixux
    3bp9MRzM9bp3xCJaRG2fPaVwp7nnb9GS8SbfU1W
    2018-02-12 20:32:51.0
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.