KeeeX Timestamp Certificate

1YaCwqsmLouKzFxcDJx67UeQ3pGexRd4QPSut2P

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 1YaCwqsmLouKzFxcDJx67UeQ3pGexRd4QPSut2P.html

1YaCwqsmLouKzFxcDJx67UeQ3pGexRd4QPSut2P
63ed9d5973c696e180a3a8f7c2947a0814695c1c7726f195ac8ce608b741ea52
BlockCypher.com Blockchain.info Blocktrail.com
Sat Sep 15 12:00:01 UTC 2018
List of files timestamped in this transaction:
  • xupak-digim-nugeh-netec-gyhyc-dunas-tazin-pefut-vyven-roves-rebot-zycac-fynaz-lepum-curuk-fipif-byxax
    1hsHe1KRBHbFjShtc6E8V8SFnrTZPqXo1uPR4Z1
    2018-09-15 08:30:05.0
  • xumid-letor-ryviz-vocyk-tenyb-dekik-lened-curys-cuhoz-ralav-becyr-bolif-nicyp-vetal-dutis-cedem-zoxox
    2fuZmQeHvmGabvt3cbWvmGUcovCGg9NX6KqFqMP
    2018-09-15 08:30:08.0
  • ximis-ticyt-dusev-kydan-pykaz-zemoh-fecub-goseh-hokuh-zuryd-hedih-hakym-zyhul-zyfid-menal-rytik-zoxyx
    3DpwfugDH9jGa68ENDZzn82zX2NYAM4hRf4borV
    2018-09-15 08:30:11.0
  • xucam-huvar-kikyn-nesyk-tezyn-sidyn-sivip-nuves-nicur-cytuz-zalar-nataz-dasob-focom-gemir-refic-zexox
    1nB5XFtrBJwvwBsr7WknWHEjXModZNFpwAdktvM
    2018-09-15 08:30:14.0
  • xohak-sykih-tevun-roboz-zohoh-satot-sibyp-lirub-zelep-mubat-sekuf-mizav-zeluc-divoh-kopan-sanid-naxex
    3MBwjQV2CbJD1836LrFRc4Xdp6156LfWkmwxcXR
    2018-09-15 08:30:18.0
  • xitez-cukog-hucep-losyk-polom-bacur-viveh-kidin-gefan-pazyg-mipov-byfim-nymyv-defib-giror-lakat-loxax
    2SWFkhWD4BKY6QcrymSi4goznPAdTwwd9HUqssd
    2018-09-15 08:30:20.0
  • xutav-tecom-ryret-mydok-dikit-mysan-mudip-mufyv-lybev-gorob-kucuc-hevyr-foluv-copaf-zunap-gefyh-rexux
    2gwbWVnNR3VCumPZoP4iRJx973pGup6RwqwH4FM
    2018-09-15 08:30:32.0
  • xehar-bacyt-pufus-covem-reteh-nykin-zekig-gedok-nazot-zoliv-remog-popob-zapuz-lacac-zudot-hycef-dexax
    2Kka5vsuUsVJBigJZq4xiZWbHaLzMXXy6pbLoBe
    2018-09-15 08:30:35.0
  • xogiv-rusiv-fefop-gacem-napom-tadev-teloz-gynyn-kegec-mavir-rosiv-bunul-bapup-zymyc-lydot-kizah-cyxex
    27aNGyMVXepNDrziyv41AUPdqdDbvT79LYoCjvy
    2018-09-15 08:30:39.0
  • xicic-dalif-busot-homiv-gycef-miveg-mosef-sifif-totig-cyval-lotit-dobyb-konub-podet-kisak-zozul-fexox
    2dbrR6aYiBABb5xpgLr4aAP5ZexzXjGPf2b4N5G
    2018-09-15 08:30:43.0
  • xecen-mitor-cuhun-zorez-baram-fufip-hotol-bilez-dutyl-cozol-pazec-gyvad-cagir-niteb-rygyc-puvak-pyxix
    3NgCbk1ZZncf9cfjgkVbQrvzG5oYmGEb7onwdxD
    2018-09-15 08:30:46.0
  • xireb-hamut-honoc-badul-tumag-tohec-gafon-sikak-ruvus-nymer-guder-tison-butib-dolip-balok-hahym-foxix
    2wZCGmEaUBNvEKJp8ipQzm4NxJAvfFNe9w4p2Sj
    2018-09-15 08:30:49.0
  • xomib-dulal-byfur-dagam-cydyd-hymed-sopas-ceker-satad-muric-zigyc-syrer-memet-dezyh-rucil-fozyh-buxux
    2mALZqQbeh7EaTq2dCz59vS4G2VwarCUspLHeTE
    2018-09-15 08:30:52.0
  • xupec-tufuv-bifav-nyled-syhir-cabil-gutug-rafyf-mupun-ludad-fekoh-vusep-ciryb-bomiz-sygob-dypil-naxyx
    2RxUHbcsCrWJcLt7BTJ4p8sD51Z2U7sacGRx4sK
    2018-09-15 08:30:55.0
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.