KeeeX Timestamp Certificate

2bwD2kCLfmDpQrL9Y8UYiBCBkRQNFfWuBRSpKs2

Anchored on the Bitcoin Blockchain

This document is a static immutable timestamp certificate.

Download: 2bwD2kCLfmDpQrL9Y8UYiBCBkRQNFfWuBRSpKs2.html

2bwD2kCLfmDpQrL9Y8UYiBCBkRQNFfWuBRSpKs2
fe93ae6bed0ca1d7bf7869d9e0ae6cb9df7c1e5a7c02aa547989a8ff01a008b7
BlockCypher.com Blockchain.info Blocktrail.com
Thu Jul 12 00:00:01 UTC 2018
List of files timestamped in this transaction:
  • xizov-totib-dalug-roryd-vilog-fybop-bysif-capyg-sygaz-bofav-ciler-kotyz-gybun-mafog-sebac-mikaz-cixux
    1cZ6NBmCFcGEhFn1karU6DgyiUVLnLAeDwT4nU4
    2018-07-11 12:05:02.0
  • xetam-dekef-ramof-vokyd-zupyv-dovip-zaneh-tucam-kyvyv-takys-cudod-kumif-conyc-ticef-fidun-telar-zixox
    2sw1Zhtz2JDqs7RnFLXU9HwRjD5fhamcQCznQWC
    2018-07-11 12:05:05.0
  • xileh-susev-kufor-veros-silez-fyfib-ginin-havem-sabyl-fosuf-duzyn-zycyd-lirud-vicob-lavyt-mecuz-mexox
    2yv6m9sNZe6XorFKosLomPPHs3oRZoycxV7Xmyy
    2018-07-11 12:05:43.0
  • xulah-gokup-sapor-fyput-focel-sopav-comos-zinam-boveh-kahir-gihok-nazuk-sorun-lyrar-todet-paros-kuxex
    1kdJARvy2ar1kKUe3P44YiCsVNJhzhxN2cZhevQ
    2018-07-11 12:05:45.0
  • xoded-pehis-dobyn-nosah-sohap-pupic-bikil-nuzes-kalel-fynim-lefar-busur-kurav-tycut-masiz-cerek-vixix
    2v1yw5M44or2StYSix9EEjcY3KNhfJNyRFSXYVy
    2018-07-11 12:05:48.0
  • xerac-runyd-muzen-buliv-rinub-kolyb-kilav-sacyd-hutan-memim-kybap-subaz-pizet-kyvah-vohir-suhuc-rexox
    1LTBvZjb2wLWh4yJJpST5dwm6NdA21ht3UrJdxD
    2018-07-11 12:05:50.0
  • xetet-dufik-lacun-zidyn-batac-sipun-bugyg-midom-puzag-vulim-pydof-kicic-nulek-metap-duvyp-dotob-zyxux
    1g8RNbwfEJPm9vqLGdzqnp6xcgJtggMoSrE1EJ1
    2018-07-11 12:05:52.0
  • xurol-kilyl-bezim-varud-lacir-ticof-lodof-vezid-lomyp-lotuf-sogaz-gapoz-simal-zidyn-hobef-pabun-sexax
    1HiMV8ss4sHWeTUa8cXbBpr6Rqwer2Lp1dWfy2f
    2018-07-11 12:05:54.0
  • xevop-metof-nylak-magev-bamec-zakid-hetuv-konul-tupag-coreh-revak-vucyg-zilih-gevis-syres-nulih-huxyx
    23HW6bsuSZZ2vfc61PJaxBWdzaGa29woEueWhQ1
    2018-07-11 12:05:56.0
  • xelez-kytoz-norak-pegyt-pysyz-puvod-codud-ripif-mocid-covyz-toneh-fyrum-fomen-lacus-vitod-zonen-boxox
    2Fv8ByWE3967ZXrka6HbrYnay48cNa4v2FuuiNw
    2018-07-11 12:05:59.0
  • xisip-tukof-rafyh-zevez-daneh-gonih-benur-gyzup-daguc-comik-mimop-zomor-betav-dymoh-kynud-pekes-faxex
    2dCpzAUPtG5ZosiZAk15nMwDJ6KPwyv5nLFTiSk
    2018-07-11 12:06:03.0
  • xidep-lasav-zizyn-ledih-cumez-zapem-pykyp-donih-donyk-tolys-dabim-vifik-fudyn-haset-puvak-lafog-goxax
    3AnnrADvuymoJawWLctzxiFMzMXNn2CVcYiAX8T
    2018-07-11 12:06:47.0
  • xedoh-fyfap-myvog-secyd-dusad-hadyg-cined-zevym-fygys-dasab-pezuf-nukoc-pebep-razes-vygad-vapuk-kuxax
    1GH5HvNQPVyMBfcyDU6LZNV48cmRBgLZTihiLe6
    2018-07-11 22:04:47.0
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.