Sample
tzinfo-data 1.2026.3: Provide IANA 2026c timezone and country definitions via TZInfo::DataSources::RubyDataSource in tzinfo-data 1.2026.3 without requiring system zoneinfo files
Verified sample for gem tzinfo-data 1.2026.3: Provide IANA 2026c timezone and country definitions via TZInfo::DataSources::RubyDataSource in tzinfo-data…
sha256:59c369149379c8926252215b1aa4d9b045a74b3de4aebecc440b0348baec877c
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
ruby linux x64 ruby ruby bundler
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| ruby 3 · linux debian/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-17 |
| ruby 3 · linux debian/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-18 |
Case
HOW- Goal
- Provide IANA 2026c timezone and country definitions via TZInfo::DataSources::RubyDataSource in tzinfo-data 1.2026.3 without requiring system zoneinfo files
- Packages
- Symbols
-
- TZInfo::Data
- TZInfo::Data::Version
- TZInfo::DataSources::RubyDataSource
- TZInfo::DataSource.set
- Environment
- ruby
- Created
- 2026-08-17T17:05:29Z
Contract
- tzinfo-data 1.2026.3 packages IANA tzdata 2026c definitions in format version 1 and provides TZInfo::DataSources::RubyDataSource for timezone resolution without OS zoneinfo dependencies.
- TZInfo::DataSource.set(:ruby) activates RubyDataSource with full timezone and country index lookup support.
- Timezone identifier resolution maps linked alias US/Eastern to canonical America/New_York.
- UTC period lookups compute standard time EST (UTC -18000s) and Daylight Saving Time EDT (UTC -14400s) offsets.
- Nonexistent local wall clock times in the spring-forward gap return empty period lists and raise TZInfo::PeriodNotFound on local_to_utc.
- Ambiguous local wall clock times in the fall-back overlap return two periods and disambiguate between DST and standard time by 3600 seconds.
- Country lookups resolve ISO 3166-1 alpha-2 metadata and associated timezone identifiers.
Files
- Gemfile
- Gemfile.lock
- NOTES.md
- csx.json
- test/contract.rb