KeeeX Timestamp Certificate

21MDJJ5EucFNeNdS4S344Ei68TvTgy1ZEZuEX2V

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 21MDJJ5EucFNeNdS4S344Ei68TvTgy1ZEZuEX2V.html

21MDJJ5EucFNeNdS4S344Ei68TvTgy1ZEZuEX2V
70aadbc43ab95fd92f675ea7f2dfe1ab11ecf532b0a4181496b677afb6a61b54
BlockCypher.com Blockchain.info Blocktrail.com
Fri Feb 16 00:00:01 UTC 2018
List of files timestamped in this transaction:
  • xuved-lasok-fomab-miciv-nyfoc-mubub-gicyd-femid-cinel-depal-lanyb-tuzoh-lyrag-tozuk-dofik-fynyg-moxex
    1FgCi3xcg75uCrtuwzDZawrGaaQ546cLawE6k9M
    2018-02-15 17:03:34.0
  • xeled-pagar-fygid-bocol-tymaf-venyc-pikeg-cylyk-gekis-ricet-salod-mukap-namod-sizez-ladug-duvoz-vyxex
    3UQDi7i4hnnLKP1t5rwNrvKVAZzyRNkrHoEcjfE
    2018-02-15 17:05:41.0
  • xotep-kamyv-sodob-kiluk-symis-surus-tobof-kusek-nysih-setil-kugev-betoh-suzuz-zofyt-vyloz-tupah-hyxex
    26YUv7wprqNsjcNVUsVQRNftQV33NgXjTarVWJ2
    2018-02-15 17:18:39.0
  • xigag-corap-cyvos-figiv-badek-patas-vogub-vunuv-cavot-zofob-cupul-sizic-gafaf-magid-gyliz-tovef-kuxex
    2ekSdAfsFfuDKDJTKzHaVeWUbtMHaTRxMf9TT6X
    2018-02-15 17:19:41.0
  • ximov-sumah-kolyg-cegos-misyg-vymop-senim-cokek-nafik-cifyt-barom-zetyf-fyrik-saruc-supin-pypis-coxox
    3VxZwtGBcmTQk7cjwZ3kqwE78zQ7MumTHC2wPiX
    2018-02-15 17:20:00.0
  • xepeh-vuten-gizir-donus-radek-boron-vivoh-bozyp-pegim-nopeg-tolip-tufuf-hylig-nyfos-zirap-fucev-goxix
    26qtPVAuzXmhfXK6DDRK5trg9Tid9U9opFhoAEu
    2018-02-15 18:50:12.0
  • xidic-zykyn-tikip-cenuv-kacet-togan-bifap-fonum-danis-nafof-rulyk-hebip-fozaf-dyhif-vadil-nyrob-haxex
    315F52ppMiJC5xRXDpCKtcFuocuXKAnsidPWJDd
    2018-02-15 18:50:27.0
  • xurin-lahyb-suhav-beryk-kakyc-demom-gyhog-dovyd-gakos-bizin-gufiv-nubib-mipyh-bizad-dobih-logos-pyxyx
    2SYjyUDQ4kpgGiPJPJw2ZhSsivYf1V4Cki4AFSz
    2018-02-15 19:42:25.0
  • xofiv-ganap-kifud-cypaf-tupym-fyhum-gydod-gofun-nocer-vykik-zarur-gotez-tesub-zubil-gimov-byduk-foxix
    2WZK7GjxsDeG1v46nhUmUPrWSC8Myz3Vwzwa2pu
    2018-02-15 20:40:51.0
  • xesam-lykuv-vacik-nomyh-vufom-kedik-hymol-kuzab-setev-hytic-pomud-modod-vylev-hokuk-zehir-nihec-cuxix
    22gBL8dCDooXTQjERah5zoV4zS868wSarmcEfdw
    2018-02-15 20:50:12.0
  • xinek-rodaf-kevek-lykyb-zotef-nybok-kifib-rilid-ketyz-zyboc-zetez-tohum-zylet-nahis-pocab-nuvop-nixux
    1U1X8Xf3Ypx712cRD6DLWzgNYcx8ZbPbv4u1Rxc
    2018-02-15 20:56:37.0
  • xipov-guzum-cocuz-laduk-celiz-vezof-taloc-buzuv-poryn-vomyk-medip-focit-zycoh-beduf-gavob-nalas-doxyx
    1EP1oAx8gV4ggUxRSVWafAvNHd2y4fd6Pmoa8Ac
    2018-02-15 21:25:52.0
  • xehez-dapab-horur-digor-molas-lyles-fipin-cugyg-femyc-nydor-locat-butif-hytuc-bozak-nekib-cesuc-daxux
    2dE8KWabNgEFEUDiC3UDZj4hFbz4oW9qSD6jkAT
    2018-02-15 21:40:50.0
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.