This document is a static immutable timestamp certificate.

Download: 27btjpGV9TV95paS7tzMNsDQEXFLus4zVavxXVa.html

27btjpGV9TV95paS7tzMNsDQEXFLus4zVavxXVa.html
517c40c6030b20dbb82ed988d2b664930d06a105fae3b3f75e17825b3d20356b
BlockCypher.com Blockchain.info Blocktrail.com
2018-12-12T12:00:01Z

List of files timestamped in this transaction:

  1. xurav-pevap-gosar-kudon-retul-rozih-hyreb-gemin-kyret-lobok-sifed-cuzeg-hydan-vopyr-verek-pycad-puxox
    2018-12-12 07:33:19.0
  2. xipin-fihet-nopiv-sibov-genul-neduk-lutyd-nicul-tiheh-hoges-nodog-misog-bolid-valon-kefyn-vezyz-dixux
    2sXKTNYYooSDyC6mVURCsT2uT6fmokFxETYpnsv
    2018-12-12 07:40:08.0
  3. xuteh-hyvig-tekac-notim-hazif-molor-mibir-tyhek-dicuv-ponyc-sodid-fesif-gocim-bisas-falug-zigil-maxax
    3T6bbgFNDfSuryYGdFCZCrVfWsTs3bZQXn3SE4s
    2018-12-12 07:47:50.0
  4. xolat-daduf-lanok-vuham-figep-gitil-cubym-balod-nyliz-rarip-fygim-cahih-dykov-ninac-rovah-ryhig-dixix
    1JKj3BiQwgSCGzzwbA8D1LLXCn6iJCTxrQggfem
    2018-12-12 07:56:11.0
  5. xufef-hevys-lasuz-kivor-dogaz-cefoh-sopyl-lyfyz-luvuk-razur-raceg-kokek-timyl-ledab-hivym-negof-tixox
    2XSREEXSUgSqwpXYDkyaSDzioEq812XrjoaGsxX
    2018-12-12 07:56:41.0
  6. xunig-molac-kylim-cebur-pacyn-hecav-rozaz-nibih-vopyt-lucid-resok-betih-zafep-tebyk-patut-fidas-mexyx
    2018-12-12 08:03:06.0
  7. xefoc-zacel-nemyb-toryn-nohol-cegih-dizav-nucem-kabep-bizav-cevus-harat-vinuf-pagad-guhoh-vumyr-puxix
    2018-12-12 08:04:05.0
  8. xorar-gozun-nizel-kydyc-bedof-zativ-fusip-hypic-tysab-nafup-likeg-fahyk-hoban-sodud-fetez-tocil-guxux
    2018-12-12 08:10:35.0
  9. xorip-kyzyr-fapil-golys-kifyp-zetod-tepok-bevop-muget-bagez-nefil-kegir-vyhyr-novol-cezok-lifyp-kexyx
    2018-12-12 09:09:08.0
  10. xores-nepih-mihig-deses-kymyd-laviz-pypyh-tibif-sisyr-zorah-nutak-pebet-tycof-curyd-kekuk-galen-nexux
    2eqbTCDhnSHUxsjsgd59qbxo3wwUccriqpGgHYZ
    2018-12-12 09:10:43.0
  11. xemec-cihoz-solac-metir-lyruv-cyzul-botum-rebeg-mibor-femiv-pytad-bires-vakab-kocob-hocit-hyban-vuxax
    1MveUfwyApZwoSZDs98tntxDvbhDCgJXcQNrc5D
    2018-12-12 09:11:18.0
  12. xemit-dupoc-foryk-bylif-movup-habym-nyzab-vyhev-fynim-fanek-cakol-bobut-bumen-gefug-gobil-tuzol-buxix
    2MezgAJcPeFetXG3HYhQvKLWsx6xPHsTpiruzm9
    2018-12-12 09:53:19.0
  13. xotet-senyr-somor-cohob-rycul-cynaz-typym-susyd-facaz-zybak-zapol-bylyz-tyruz-dimik-nysiz-coroz-goxex
    1fKPaQuaJiyzUNqG7RiG1Avyp3fVKvQ73wd3T5B
    2018-12-12 10:11:24.0
  14. xucik-zygup-dupog-pezum-nuvob-purom-vonib-zihif-kybot-digec-meker-somap-lutif-ronet-kytep-cezas-caxex
    2GNkvd3W7z46sXuNXCAeTB6gDQVepfSXaDewZpb
    2018-12-12 10:47:58.0
  15. xutar-tenym-rasyd-gotef-makin-pekop-vanel-gypen-nifyz-pucyv-ritak-pagep-sycil-cygeg-vavot-peryb-laxox
    1HA7wtJLSGSQ1NGMSbzoJUvVDyT6y9v5x4tGNBx
    2018-12-12 10:48:22.0
  16. xicek-supah-kazyg-zufek-maboh-navug-fuzot-gyvug-desas-bilyb-cedyz-fuzep-cukut-sibis-hamyr-vocet-cuxix
    3EmBbxu8LPDgcY2i9vJDqy3pUGkk54bwnh2Wdkm
    2018-12-12 10:48:57.0
  17. xecad-bisev-disad-butuk-duzyg-zymic-nydek-vovog-dykih-bonil-vizud-bykut-gufiv-tekaf-muhan-malym-poxyx
    1rferu4j9V7uBzhPm1jVvSXnVUQzBt4ZydMDnPS
    2018-12-12 10:49:34.0
  18. xivem-mufih-megel-vafen-gibog-zuluk-belan-tetor-pydeg-sokup-gonet-havup-bypeh-kucib-maceb-doric-coxix
    1FKAVP1to5BEPDkZc7NgAdEgcRawcu7SCLtp1a6
    2018-12-12 10:51:01.0
  19. xenem-remum-hyfur-tasys-nozuz-lezus-syrop-hitit-dikyr-mipyn-bedaz-fulyd-kysod-zaguh-ziler-mogag-bixex
    3H7tyRVqzE2Mb1U7RQrvsxT93UnTkXZSBxg58Pp
    2018-12-12 10:52:59.0
  20. xogog-totah-zyzet-himut-zegyz-lenoz-pabud-sigok-sevig-palut-besop-kadas-mosot-monob-hepeb-laryk-gyxex
    2018-12-12 11:29:35.0
  21. xizif-palos-komek-lizig-nikup-tyref-kopep-tesyv-sepuf-dabuf-cydaf-myteb-fetig-zynap-vyfur-honuh-foxax
    2018-12-12 11:29:44.0
  22. xusog-bifiv-rular-zinis-zonup-conyp-rodyg-butuf-sifef-hakop-zylip-hufyd-gubyr-gunor-misav-buvob-dyxex
    2018-12-12 11:30:21.0
  23. xuhil-dokep-sykim-vobyl-cecyk-ririb-sakif-bafum-lumuz-tagiz-haris-dulat-palyg-pigem-pupyg-sarop-boxex
    2018-12-12 11:31:03.0
  24. xemod-vygez-tazog-pavyn-vogyn-lahym-sezon-pahiz-nufos-dufop-lapat-cubin-zuhob-pygyl-zetyv-pitan-daxex
    2018-12-12 11:31:37.0
  25. xureg-hyvar-gyzup-takyl-nakid-vetim-sigen-sofug-rucug-negyl-bizet-lezuc-bohug-butuk-lolyb-pebod-lyxix
    2018-12-12 11:32:30.0
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.