KeeeX Timestamp Certificate

2QzpdNj49gDEvDPKpWa6p9UsJwaRL22p5TVnyNJ

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 2QzpdNj49gDEvDPKpWa6p9UsJwaRL22p5TVnyNJ.html

2QzpdNj49gDEvDPKpWa6p9UsJwaRL22p5TVnyNJ
f3351b71839c706e1717261faca1fc5efb24a9738d9dc749955c289ae4f35086
BlockCypher.com Blockchain.info Blocktrail.com
Sat Sep 02 12:00:01 UTC 2017
List of files timestamped in this transaction:
  • xefop-mibyf-zimyr-tidyn-lelav-bocap-vahop-homak-dydov-badak-byvyf-dutyz-zikuz-ranin-veloh-lipar-taxax
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    2017-09-02 06:29:16.0
  • xuges-dofik-gityf-zasap-rymin-zulum-runuh-susup-sereg-netom-difyn-pyheg-ryfif-mahor-mygyb-nibug-nixux
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    2017-09-02 06:29:21.0
  • xehor-bonor-luhel-vihyh-dyduv-binyc-dides-hyhir-nynir-tobob-kodeg-pypaf-nyfas-degon-bubit-nicon-fyxox
    34ASmGyKGn4F8tiPjAgFNFYXPWwz2JkJ9C9vUEZ
    2017-09-02 06:29:24.0
  • xizod-nitic-norac-cugam-cazic-budim-fycic-zopet-camyb-penep-pinez-hitaz-takyb-vogim-gopil-fidah-raxux
    2DtbspkaCFQMNSHsR9SeknqH4tRPhni4ybQDoxk
    2017-09-02 06:32:12.0
  • xofen-dynuc-nysum-myhuf-pabyt-satuf-tofyc-dokup-losep-kumep-reruz-pisev-hiras-dyfec-lydeb-sigeb-zyxix
    2yQ9gVzVmCDNTYVvwW32ni2SbYyQwJc14vP8fjT
    2017-09-02 06:32:34.0
  • xovas-zazed-kezor-fobac-zadup-nidet-befem-mobar-myheg-bacil-hobuc-benoz-lecut-sunen-nezyd-nuhop-noxex
    3ChbKZ7faLww32qRo44eDRbG3TSvsTyyFBFiE8r
    2017-09-02 06:32:47.0
  • xubed-tuvyv-batad-pydiz-febim-nukyt-birer-cutel-vovof-nusom-kupar-tuped-bopil-vafyt-tibel-pebul-dyxux
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    2017-09-02 06:32:52.0
  • ximep-kemub-bizyg-gules-cizac-gosan-ligop-dyhap-lanos-podoc-nonur-vovob-rineg-pekag-lytec-bomid-rexox
    1sC7vZ5mC9EB2mQm1H5maGXrFYRo3Dgm112vCnT
    2017-09-02 06:32:59.0
  • xurim-hygiv-vupet-hegob-gymam-dybah-kozod-hahob-tozol-fofaz-kobys-nirev-sorap-myryk-vydot-fitep-myxox
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    2017-09-02 06:44:12.0
  • xibet-revik-hofon-kahyn-biner-zyfez-vyceb-volag-covof-sagog-zyvup-cityp-raver-fumob-zevyz-lahiv-muxix
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    2017-09-02 06:44:16.0
  • xogov-lezod-nyvev-dypyr-dafuf-sidiv-malyk-fyfuv-marar-fugek-tusyk-ladat-gatak-pabyp-vydyc-bosaz-cixux
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    2017-09-02 06:44:19.0
  • xotab-muzob-nynul-myhon-tyhon-nelan-colel-femuf-kahof-salig-luzym-bucit-buboz-gitic-vinop-mufif-paxex
    2orouwGbDEAruVudfPfXTSmhG55yGz8vXH1Nucv
    2017-09-02 07:13:14.0
  • xunit-kapac-sogyt-mapys-vibyr-vurul-dotyb-vygek-kibab-rosyt-noref-belyd-fokyd-liryr-punun-kokil-sexox
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    2017-09-02 07:40:44.0
  • xugem-nyboz-ruzel-veput-ryfar-sybel-rudaf-lifur-bihoz-cehud-mazip-dysam-dokor-rabat-celan-sireg-kexux
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    2017-09-02 07:40:52.0
  • xibor-macib-potyb-fegir-nesob-kedem-buryt-muvym-hygyv-cadem-konil-bilin-vazic-bopim-lusuf-hypav-coxux
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    2017-09-02 08:33:30.0
  • xicoz-fegyk-lyvyb-pucup-nomap-rugen-rudic-sucol-vetoc-hetyd-tatem-vuvut-tutyb-visun-zutyr-pupev-duxax
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    2017-09-02 08:33:34.0
  • xedog-rorol-fabup-rylun-tizam-byner-mitys-damod-pocum-mipyd-tylav-pisof-furud-hotag-lokik-vesis-hyxyx
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    2017-09-02 08:33:37.0
  • xicor-mitev-vifup-mekor-hiten-nuryg-vuzyl-remih-nohud-logah-senel-kehor-vesum-giram-vemim-lidug-maxyx
    2Qmb8HGea63kQhHNQW5ZZk8AyhHX15ayjKVb4G6
    2017-09-02 08:33:41.0
  • xotet-dateg-tomid-kytar-didyf-pekah-dyvut-vuvem-gizog-litem-buvil-vicuz-nymyz-gumeh-vevac-fafyr-goxex
    1WfKAqGNmSyVYTYZXacsFiZut2RZEQua1uviytf
    2017-09-02 08:33:46.0
  • xilov-misor-cugop-cylup-fabyb-temep-zelyg-tesef-casub-fehus-logak-folas-ryvab-cycul-lareg-kovah-dixox
    3D7EtDFJGwkzyuaGmZP2EbESjVWTukeG5uA9gyp
    2017-09-02 08:33:51.0
  • xeviz-dezec-tumos-hybyk-robyn-zyduc-nysut-vopyt-raveh-gofen-lepub-tovif-tuhyk-naret-zisup-comup-cuxix
    1GjvkiCvdjAwYYq16myJqKoP2y1NUs11Gh2Bm4y
    2017-09-02 08:33:59.0
  • xoham-zotev-bybuh-holom-zydur-rifus-nicen-finuk-kagil-rafam-hefez-sikah-tuhip-roril-dozaf-rihav-roxix
    1NQXcnfnDUefPna3899Mxd9bMux7MViWem9czWi
    2017-09-02 08:34:07.0
  • xusaf-gobiv-dicur-mikys-teled-tinyn-byzug-lylim-ribud-pulok-saros-famok-bumed-lezih-kocyl-kotib-caxyx
    2Q4W5M1oyWgSDcXGokxMYkkhLFGVnyAuuctaNnY
    2017-09-02 08:35:54.0
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.