KeeeX Timestamp Certificate

1vNv1jp1d1mWGv1CPNA6KUkwWY39jqWnba9FFEm

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 1vNv1jp1d1mWGv1CPNA6KUkwWY39jqWnba9FFEm.html

1vNv1jp1d1mWGv1CPNA6KUkwWY39jqWnba9FFEm
0b48ab61f5fc4de933d9afe9c957e51670607efac688a9aee9dc7628635f6702
BlockCypher.com Blockchain.info Blocktrail.com
Wed Sep 26 00:00:01 UTC 2018
List of files timestamped in this transaction:
  • xeviz-byfam-gefek-metyd-zyriv-lanup-kopaz-pyfev-kamom-vibav-sepem-hykid-gubid-sukeh-vokon-pireh-baxax
    2HJakYdSzXb1A7NCXefEGo63gB7ry12jLjUAstD
    2018-09-25 12:34:49.0
  • xufiz-zynih-rinar-gegid-ramaf-bebil-ruzuf-gicuv-sahyz-cazek-latel-cumiv-lipit-nitiz-ladof-mikam-foxox
    1p7GxhpkQEbJMNdc2rHAvLHsZnHjwANgeB2EQzV
    2018-09-25 13:05:09.0
  • xitag-vosed-pyfog-nyrep-tevop-rufyn-sokid-sehan-nogaz-lonil-cucyn-tenuz-fyged-kikug-cosol-fabyr-fyxox
    16C7f8ghVCM4pKwYZdPr2XcuaeAiGBSh9G4rqK7
    2018-09-25 13:05:42.0
  • xipen-gerag-lozag-famic-nurun-gibip-tezav-luzat-zucyr-zibob-rukut-vigyp-mifeh-koded-bomer-mogem-gexix
    2Eiw9duG4c3D2uD19PJUnPrwLzQ17L6FfXN1MUo
    2018-09-25 13:06:03.0
  • xikah-vufim-cizal-vimuh-pukyk-biteh-hacot-nusap-dylaf-dotab-vedoz-virez-kylag-furun-bufof-hysev-lixyx
    2018-09-25 14:36:15.0
  • xiden-coviv-divam-kibyk-zopon-dakos-culir-lyvyg-hacaz-tomaz-kerul-sibiz-dutom-tehul-dymod-lefyn-lixox
    2018-09-25 15:30:57.0
  • xuros-cibar-nudob-kotyb-zymoz-tigec-milam-lomic-sikyk-simuz-vafaf-tinuf-rymab-nagal-lybuc-gubas-saxox
    2018-09-25 15:31:01.0
  • xunav-zazed-zudog-gafah-cetam-pefeb-dizyz-teled-gyzar-mopub-pyfuh-cabuz-cecad-nyzun-devec-gafuk-byxix
    2018-09-25 15:32:48.0
  • xebib-hobuv-cygal-riguf-pydug-savod-zelat-cigiv-zyrub-dahob-tokyb-zelul-falob-hukog-rehug-cilob-byxyx
    2018-09-25 15:32:51.0
  • xovad-kysyc-futuk-kahif-gemic-maryr-cepul-rugis-zyvyz-kukeg-lotes-lumyv-zabyr-zizuh-kutas-sufen-nexux
    3SmmiqQBCgtbQ8T6p99FtJW6jZNbmXxzs7J6umF
    2018-09-25 16:21:07.0
  • xosaf-vyfih-zifep-potaf-kibin-guvyg-navig-gavoh-fivul-mycem-hyliz-hyfyn-momas-mozol-nigah-fygav-vyxax
    1FjxhMsQcV6xx7GXZoxnbzfk4AyQiNj1Mk2f9oh
    2018-09-25 16:21:25.0
  • xoloz-nefed-gytus-myzot-tiped-kabid-duhic-dopar-kunih-vuvez-fukas-sasar-helog-vosus-casyn-hazyp-byxux
    3DDknUxeXKi8MgQ6QJRk7VvbpN44pCfNVgaTGmt
    2018-09-25 17:04:16.0
  • xosas-nysas-dolel-ridur-hahym-nudus-vukis-pekud-rakac-goron-balyt-hatus-zevoh-zarus-repob-sudel-soxux
    2zQFL1kuD6bvEn1a4vnLbuJqfsMfULkMcSeidfU
    2018-09-25 21:06:55.0
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.