CodeSampleX

Sample

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

sha256:97a86b4ce41d8cdff0562d0be469385c1a282db456e3d234b6fa17900c5be6ad

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
  • uuid.NewHash
Created
2026-08-18T22:08:59Z

Contract

  1. uuid.NewHash generates deterministic UUID v5 given sha1.New() hasher, namespace, and data
  2. uuid.NewHash with sha1.New() produces result identical to uuid.NewSHA1 for matching namespace and data
  3. uuid.NewHash generates deterministic UUID v3 given md5.New() hasher, namespace, and data
  4. uuid.NewHash with md5.New() produces result identical to uuid.NewMD5 for matching namespace and data
  5. uuid.NewHash correctly sets the specified version number and RFC4122 variant
  6. uuid.NewHash produces distinct UUIDs for different namespaces or different data bytes

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous