Slots time fix

[roks0n]

Proposed changes

This PR fixes the timestamp on transactions. Fixed version and compare it with the broken version.

Types of changes

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• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Refactoring (improve a current implementation without adding a new feature or fixing a bug)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Build (changes that affect the build system)
• Docs (documentation only changes)
• Test (adding missing tests or fixing existing tests)
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Checklist

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• I have read the CONTRIBUTING documentation
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Further comments

None

[codecov-io]

Codecov Report

Merging #28 into develop will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff            @@
##           develop      #28   +/-   ##
========================================
  Coverage    76.88%   76.88%           
========================================
  Files           37       37           
  Lines          662      662           
  Branches        60       60           
========================================
  Hits           509      509           
  Misses         128      128           
  Partials        25       25

Impacted Files	Coverage Δ
crypto/slot.py	100% <100%> (ø)	⬆️

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