This document is a static immutable timestamp certificate.

Download: 3UWncqt5N44zBMrMGuZMJp5hA8CJRfF6m8YpnQR.html

3UWncqt5N44zBMrMGuZMJp5hA8CJRfF6m8YpnQR.html
195cf24c976ad01da9002552dc8d77965c3b0f41ea25440c35a1c58135fc1202
BlockCypher.com Blockchain.info Blocktrail.com
2018-12-10T12:00:30Z

List of files timestamped in this transaction:

  1. xekor-horis-rumec-higep-guboz-celam-cerog-myfet-fyneb-ziryc-debam-tepiz-dubyc-bobac-luzoc-colum-nexux
    2K8bqoQkc1ohqu5TW9SmgkZGMNXSwMaHJN27ijx
    2018-12-10 06:11:25.0
  2. xofod-fymaf-hodom-pumon-kiteb-rydeg-dyvol-recov-zonop-higad-simyc-mazen-denuv-motiv-pobyb-lilus-nuxax
    1YoF3SrDzUmx9G2M2YcFXnXW9eYppoBtnq3B87M
    2018-12-10 06:11:30.0
  3. xusaf-nipih-ropic-tunab-kybyz-getim-sigek-mesam-gabel-gerum-konep-babih-nadyt-surak-zecid-rates-gixix
    3AqcZpwpe24ZTJ2wnXtbceCxdbLbSf7pMki86Ki
    2018-12-10 09:13:37.0
  4. xudot-lakyd-tukop-dofed-pohoz-nodik-filac-bokol-kurel-bybel-pepoz-vucar-fagak-cytum-nusak-nohyf-kyxox
    1ZGgw3Y89M9QacEsCZqGSVbi1UHRPRoUvHGr5WJ
    2018-12-10 09:14:27.0
  5. xifon-gezuc-cymub-koniv-copev-myrom-paryp-zubob-dybik-picyv-zomyk-letuc-dakad-dolys-cazit-bypul-loxax
    2amNXQaHpNqhezshFYU2JG2iTDFtanWEQ7xeLf3
    2018-12-10 09:14:39.0
  6. xerol-vycav-talon-bykev-ladek-pukab-hecit-sodyd-bival-metat-gumuc-nodaz-mosym-cynig-pamus-lytuf-guxex
    2Gdn26L2CobnhC5WaBk7myDHXr25oZjAfvYGS1C
    2018-12-10 09:57:15.0
  7. xonac-vemir-cosip-nypyf-sutyg-lonos-sofuz-kobac-tafab-sarub-mehad-lecod-cyhiz-mokeh-hehah-kukuv-dixex
    2pByamPvrfiHbhhBfe4SeshKHUr3U4mWFKCAi2f
    2018-12-10 09:57:44.0
  8. xisor-tykec-rymam-byrup-focik-bacan-posim-nufiz-nytom-cunal-cuvum-fovah-vevag-puzug-fazav-bysab-lyxax
    172BSaEP4yWzUnF8bRV6H3HSkRDLAdjxvBEy6Cb
    2018-12-10 10:31:09.0
  9. xibik-banud-tosob-hihul-fegip-myvuf-lezid-hitaz-lybyh-fesac-pyzyl-moheb-robef-zocar-heleb-kyhep-zuxex
    14ucqDRBbuuNCLSPh6A7huzivqxx1CV2JZ9LZEg
    2018-12-10 10:31:24.0
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.