This document is a static immutable timestamp certificate.

Download: 1t941finFUDLSfhiWAhv6SHQ5RZdmXWJwQ6xZGp.html

1t941finFUDLSfhiWAhv6SHQ5RZdmXWJwQ6xZGp.html
41a44e842ae1838fd516fe1ff6213a6177bece9d28384c9405260460567c947e
BlockCypher.com Blockchain.info Blocktrail.com
2018-12-07T00:00:01Z

List of files timestamped in this transaction:

  1. xohel-mulus-capuk-cenup-hopad-gefih-zupik-rysyr-fofum-bihyb-siboh-fanik-zynab-mecod-kyzir-dudoh-gyxyx
    3Uj7D6JcrZv3FxTX5h6RhnU1JKKjqwmvd3XPBuF
    2018-12-06 13:21:37.0
  2. xidef-disat-midyc-pafol-fagac-pagib-kinok-holyt-povar-segon-mesev-givym-kohil-suzuz-gyvok-buvar-zixax
    2018-12-06 13:48:55.0
  3. xitag-disuv-kofem-pegab-babef-parec-nibok-nuduk-fudem-notog-zigom-muryc-comes-tybic-dakyk-nysef-buxax
    2pLGQ4G8PjDhyFYAAyoNncde1AS7tPXKTZTKatp
    2018-12-06 14:30:06.0
  4. xodah-porom-sypot-favad-rocul-vigom-ludat-sevel-zinov-mogil-sonib-lolag-pasub-conig-hecev-havag-soxax
    1aM35gNSUanQpXcD4Ye9R4gA8yNmLWJ2JhENAwG
    2018-12-06 14:30:39.0
  5. xeded-fisav-bihul-gurug-gosog-zabuz-fobug-pimuv-fykas-pabeh-kafak-vuryv-dilim-fihes-mikuf-susoc-cexyx
    1SVy7wbsZj4MGjtGCTsCoJvEd3mZq5G8uSURXf6
    2018-12-06 14:31:47.0
  6. xeciz-fubet-pygun-tazis-golet-devym-kusev-modib-guces-pymut-daleh-napyt-bigil-popas-morob-tirus-baxex
    2mYXSMGLHzJWeBubgpnJJKUrbeFTjxYi5i74kED
    2018-12-06 14:32:14.0
  7. xupas-mazuh-bizug-tecug-lugef-mopip-havir-dadah-bebam-micof-nidev-dekyg-maroz-nydag-bifac-zysif-nyxox
    2018-12-06 16:41:31.0
  8. xofec-doceg-gucyk-hifim-telav-kerev-bidug-synuv-lirar-bocuf-pegys-fecod-kekeg-mypum-pibat-bydez-nixix
    2018-12-06 18:01:28.0
  9. xesab-harap-rinaf-fegar-cigod-nitap-myvok-sadav-dydoh-kypam-valaf-mevih-gykuv-ceded-licec-pumyf-huxix
    1tHriZ68c18SNDjn7DCXiwCzzVqSguy7jro1J6r
    2018-12-06 18:19:24.0
  10. xelat-bupuh-gehov-robyc-ducas-pazin-dubeh-pyrev-munoh-vozam-nezos-lidit-hufor-hafyb-tohop-kulip-faxox
    2YJKJXvfemnqMJy85UkA137DEbjfVyPc3EGPHvH
    2018-12-06 19:38:31.0
  11. xison-socap-zezyg-gypiv-fycic-gyruv-kunah-copuc-tokiv-vodyz-vysav-samer-nidor-tahyf-hykof-simin-voxex
    2T3PgG4kwiCMwvcJUhXTwWmvwMgM9bhBw797Bcy
    2018-12-06 20:40:04.0
  12. xebiv-mimyp-hehag-ferim-pohun-nivon-rileb-hopev-pyvyr-gyzof-ligud-zikuh-tibyb-neboh-boteb-henud-doxox
    2yrncx5xc49QmtzWKdCscTVWDLiRNT9kNLSekUo
    2018-12-06 21:39:09.0
  13. xubev-roboc-vadan-liruh-senyb-cohuz-hofag-dybiz-palun-vufoz-zepop-gareb-vuvef-tyvez-kacob-huzek-coxax
    3be7nSNBr4WjjXzz58nSeHVWLdX8zz5FaUDniiZ
    2018-12-06 21:39:16.0
  14. xipos-rocor-myguf-bylig-gugas-batob-nadik-lefaz-cemup-bibur-cisip-pumoh-vozod-kysol-cocam-fofef-noxax
    3KtLM1TFobc6XhL31jn2kdZpT3AWS3kWg1Zb1Nm
    2018-12-06 22:37:06.0
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.