CodeSampleX

Sample

verify pkg:golang/github.com/google/uuid@v1.6.0

sha256:e3352fc37e8e4ef5db627ab62e5721199f92e2aaf8cb423085e194726aa49ca3

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 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
  • github.com/google/uuid.UUIDs.Strings
Created
2026-08-19T09:04:03Z

Contract

  1. uuid.GetTime returns current timestamp in 100ns units and clock sequence
  2. Time.UnixTime converts uuid.Time to standard Unix seconds and nanoseconds
  3. UUID.Time extracts timestamp representation from Version 1 UUID
  4. UUIDs.Strings converts a slice of UUIDs to standard string representations

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous