KeeeX Timestamp Certificate

1BzdK1sZDM8Tpi9W2Kam8tDcqc8rZUcdwg2s7CW

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 1BzdK1sZDM8Tpi9W2Kam8tDcqc8rZUcdwg2s7CW.html

1BzdK1sZDM8Tpi9W2Kam8tDcqc8rZUcdwg2s7CW
fbcca2a4d2d38fa86d4c9101d78a7a651cac4d37a67acae3bc2fc448483a57cb
BlockCypher.com Blockchain.info Blocktrail.com
Sat May 05 00:00:01 UTC 2018
List of files timestamped in this transaction:
  • xucil-mimyt-danur-byhas-fazam-vyzuh-licov-civon-davaz-fenas-picur-hopoc-fipyv-lepan-cenuf-tefil-hexux
    1ECUbsQDDLa3iahBvGdteJETK8ug9aRj1czsVX8
    2018-05-04 12:35:21.0
  • xulik-foreg-byvoz-magod-bucub-cadof-tuhif-bogid-rofyt-hafan-povof-femog-magov-bevem-cehif-mybyh-pixix
    1cdRsMDpMMNmmLm6my3S29oZJ2SLNCTKoYCLwui
    2018-05-04 12:35:23.0
  • xurig-sugam-vezom-seged-fugoz-vakos-zymev-cohog-damyl-ledit-biric-locab-vysok-nyteb-tusip-fyfob-haxix
    2cys9kWPgZHZbughtYdv36Cs6DNCbXzyKz7v4VS
    2018-05-04 12:35:38.0
  • xihac-vysud-paryv-libuc-konen-kogac-zunyg-dyzem-nypyz-duhin-mupyr-pekab-dikes-monar-nehag-fuhut-suxex
    2rvDtCK2nBNoJFjGNSEjbXuG8KGsSYkeYxZx5Qu
    2018-05-04 12:35:40.0
  • xebot-ranym-tubyd-hulac-lirud-tuzuh-binah-ropug-vabav-totat-zisel-diluz-somys-sepug-salyb-rivip-dexix
    1F996FTRNVBS14kYEc9xkbpFCMJbED5Ds1eYKEE
    2018-05-04 12:35:43.0
  • xolof-socal-basum-ryzup-nuseg-rerod-ricih-fobuv-sokec-falor-hofud-tuser-dodid-bavab-mipim-falic-fyxux
    133eREzg1gYAkDA8UDBfE17o9PEfbaXFfRvCRFd
    2018-05-04 12:35:45.0
  • xeneh-kumal-vypas-duden-zavus-pokyt-bypyc-myvas-fynyg-mimyc-gugyb-raryg-rykan-ritif-gubur-ruhup-vuxox
    27X4gdz8sMagJKEJXtkS1yH74SVf9fk94mjYA4n
    2018-05-04 13:49:25.0
  • xefap-zabon-bifef-filyc-napyp-zyfiz-gineb-tytob-zazut-fybuv-govib-cyfav-madun-zynuf-tyvuz-nitec-voxax
    2C2PqQubyzTwRDKFqeLUA1M8V52N4jw9vTrYGQq
    2018-05-04 13:49:39.0
  • xonez-gilab-tulak-kilyr-bahyc-zatet-cubyl-micic-mobec-purip-rofel-sidaf-muhyd-fubet-zakas-conet-gyxix
    1UzYrvC7cxeeJQBvCeT38WSAn2RNfJRCy5pCAbV
    2018-05-04 13:49:51.0
  • xurih-poteb-korec-sakuk-kygal-gehuv-cupys-gakuz-gukyd-mocen-dokot-vysam-fikak-fetem-fukos-pekyt-foxyx
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    2018-05-04 13:50:09.0
  • xulab-nefeb-beguk-kedar-vuten-hahym-rotap-kamig-koruv-mipyt-mavub-muzop-kobib-kusin-cozuv-rifec-dexux
    1XAGhaRd2GdjKC83d6pX45asGKfHZuCwCrrvRXd
    2018-05-04 13:50:23.0
  • xibis-becud-micyf-fizyv-liban-rumik-vazeh-ryvap-buheb-pahet-zasas-hobep-nadih-tyhos-hikyh-pekyn-haxox
    2o67SUzReSiL58kFHQekHyaEPVnz8aKcmA3hH2m
    2018-05-04 13:50:28.0
  • xepel-lubif-habik-zikyk-secig-hagyh-cyryn-ziraf-hymed-rerul-pimun-rifef-mulog-varek-syzuz-hobub-cixax
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    2018-05-04 13:50:34.0
  • xihak-tocyk-rehic-vylig-nehur-rycyb-temor-mesyl-hucaf-recec-difys-nomec-garok-posem-vytyp-lumyl-zuxax
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    2018-05-04 14:57:15.0
  • xurif-pihih-dehet-hacac-nenil-vunas-lubeb-goger-gukit-tilik-herep-selot-tusis-zyriz-vefah-fefev-duxax
    2iCa9yTNWY7pmeiqyVg6B9s3ce4KfNmGT1jZQGw
    2018-05-04 14:57:40.0
  • xivas-milog-nenoc-solam-fafid-furaz-vevuk-gelyn-pyvum-rinik-gyfyk-tecov-lated-zyzak-pyroc-hazun-sixax
    2oSrdE76rSQyuGPJqSGDmpqdvX4sdwHB8L17MvU
    2018-05-04 15:33:12.0
  • xiper-kucal-gekum-nolyh-gohyd-numip-cesus-seriz-ryvon-gekif-hudat-dybor-mimof-makeg-bufyz-lotez-nyxex
    3VKma54mAQ3zYdb8BMJkYuywxYZqx2jafoPCJTx
    2018-05-04 16:12:40.0
  • xikam-gukaf-byroh-fozes-zifyk-momif-bazyk-rokim-fitah-gukem-tesyl-fogyp-tolup-cihep-nuzab-dikad-voxox
    3GbBVVsDwUTdm6T8MT9ApMAopYfdEhif13RkHnh
    2018-05-04 20:51:13.0
  • xivis-gerem-timip-tufal-ryvyg-simig-gitev-sutor-sific-figup-baset-cunoh-zicel-cyvig-fihed-fyzuv-tyxox
    29EVZb1URW6CGLxLD6krwNMYAqpGrCFhouR8EUf
    2018-05-04 21:09:30.0
  • xodef-zupon-geleb-rulil-bazur-pavot-vodek-tegob-huhud-ceduh-kakin-kocim-nepip-cokeb-bahin-vabuc-fuxox
    2eoBN8Tdwb83z3pLgnX9UgcV3NfyjnxR8GEGQ4h
    2018-05-04 21:15:35.0
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.