KeeeX Timestamp Certificate

2bkcA7hVTgM8LVFEJgYoxyabF78MjUHs5DdUW67

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 2bkcA7hVTgM8LVFEJgYoxyabF78MjUHs5DdUW67.html

2bkcA7hVTgM8LVFEJgYoxyabF78MjUHs5DdUW67
0e792cfbab1d6bf806ed61c9e143bf125dc223d9c4d8a46f134c65045447db0b
BlockCypher.com Blockchain.info Blocktrail.com
Sat Dec 30 00:00:03 UTC 2017
List of files timestamped in this transaction:
  • xozec-mycyp-tyvef-tazol-monut-vifuk-sarem-rylok-kynan-modin-ralen-tahuh-vabiz-nipod-kypyp-naryh-cixax
    3CyiPMdseLHBjvRJGuAVoGrksK8FbuGRTn5gNye
    2017-12-29 12:15:47.0
  • xicoc-tuzek-mogol-hudam-nynad-nimul-lyved-busip-kahiv-zymom-bymeh-gahus-mabys-pidyk-nurig-fotyk-voxix
    36jjvyxjERmKaW4MLFwTAJjq6J99kPWWFpR13PJ
    2017-12-29 12:16:03.0
  • xirin-tyzep-husyn-hykom-besal-vefyk-namig-komof-misot-riryv-bunel-vopaz-bukac-rozes-tedyf-bazan-hexox
    3RPS7aKdiKkKRsWdUpvncDQDZyqHtq88H5TmGJD
    2017-12-29 12:16:24.0
  • xoliv-fenut-nozaz-levag-zytob-mudam-somoz-capyr-benet-vazid-huzag-tuhyt-pycid-hukof-cikek-lemit-nuxux
    2Pze45o1HVMzkt36v3bv1FofCCZRx3ZUgQQJeWH
    2017-12-29 12:16:33.0
  • xopom-zumup-gybot-vygob-pahin-garov-fisiv-huboh-nufoc-ryciv-logot-zuzyz-vehyg-mygus-luhuh-cinit-ryxox
    3cc2WpXup2JkiuozpagZJ2uFCuGuP1KBp44JCJs
    2017-12-29 12:16:39.0
  • xonit-dydus-nolym-cyrek-semim-ryvep-sifyk-bilin-fynud-milab-tibam-zuhif-vadep-latup-muceh-dapug-fixax
    1mbJNyoTnLVXSxFhc9HMiJUU96rgErjA4p77fmo
    2017-12-29 12:16:50.0
  • xevin-famov-gypok-fonak-likin-fasyl-hanok-potag-mylyt-cemid-cisyg-lusap-misig-gynok-hatus-mudan-zexyx
    1eGo96UBoeLnbcR57cM2XYkAwknBsoGsLJyv2TE
    2017-12-29 12:16:55.0
  • xikom-tocek-zusoz-selib-fivac-tacar-lezuh-bocab-subyp-pybic-dumup-horuc-kotuk-zuhaf-huhaf-hebev-caxux
    3BdzPBw7w1Hm2F93yyHMmk2RJQCuqJn7FsXzHYb
    2017-12-29 12:17:15.0
  • xonis-gekyr-pydir-bizol-tyhoh-ruruk-bonaf-kosyg-cilyl-cicik-pehys-zuvyl-dafor-bimun-fykyg-zivir-lexox
    3dLzUQy41znRhPxNUGGgeK9zRowxb2PDT9rRs8a
    2017-12-29 12:17:19.0
  • xobob-rokam-tehur-libob-beteb-giles-pabef-bybyr-syzer-gazok-fudog-livid-ritah-habum-nycys-kolep-vuxix
    22D8ZHe96WkeotBCubayg4NgwQNfQwRV8BdEdWJ
    2017-12-29 12:18:14.0
  • xumif-rubaz-bofom-rutoz-vibaf-folok-bupin-rykab-cysap-zolep-sihed-secyg-zitog-dukuk-gizot-simub-soxex
    1zG1JfP4cevqrCxU8qFaggyVynsiMXm3FCPY6E8
    2017-12-29 14:35:49.0
  • xuceg-deger-zyfar-rotir-kurak-runav-nogah-popic-mevyt-zyzub-vurov-galoz-bylyb-banes-hyfih-zarut-foxex
    181v28HQh8Pqy1NBcUsEhVXfn7KcUwZ1PzTFvWX
    2017-12-29 15:03:52.0
  • xezaf-kikuv-sonec-sobes-kupan-bimum-norec-rubur-ryted-hyrik-kekav-bezyd-kigum-pagav-vadir-luzum-hoxox
    2YDaEJ76tUjoQxUvqTtbAFhboFFFkbXbpjV1N6H
    2017-12-29 15:04:23.0
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.