CodeSampleX

Sample

verify timestamp extraction and Unix time conversion with github.com/google/uuid.UUID.Time in pkg:golang/github.com/google/uuid@v1.6.0

sha256:88a2bfb7756a9a3b6c529fe4d3dc812dce30b0411911af9969047da4fa13b7e2

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS
Declared environment windows 11 x64 go

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1		 2026-08-19

Case

HOW
Goal
verify timestamp extraction and Unix time conversion with github.com/google/uuid.UUID.Time in pkg:golang/github.com/google/uuid@v1.6.0
Packages
Symbols
  • github.com/google/uuid.GetTime
  • github.com/google/uuid.Time.UnixTime
  • github.com/google/uuid.UUID.Time
Created
2026-08-19T00:03:04Z

Contract

  1. uuid.UUID.Time extracts 60-bit 100-nanosecond count from Version 1 UUID
  2. uuid.Time.UnixTime converts UUID timestamp into Unix seconds and nanoseconds
  3. uuid.GetTime returns current 100-nanosecond timestamp and 14-bit clock sequence with RFC4122 variant
  4. consecutive uuid.GetTime calls produce non-decreasing timestamps
  5. uuid.UUID.Time and uuid.Time.UnixTime accurately decode standard RFC 4122 test vectors

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • main.go
  • spec.json
  • test/contract.go

Download the source artifact (tar.gz)

Origin Seeder

anonymous