CodeSampleX

Sample

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

sha256:0dd2377932f3559e652486f62bb69b7bf83e8504aa9a1d4136456ff98fedb6aa

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.New
  • uuid.NewString
  • uuid.Parse
  • uuid.MustParse
  • uuid.Validate
  • uuid.FromBytes
Created
2026-08-19T05:39:20Z

Contract

  1. uuid.New returns non-nil UUID v4 with Version 4 and RFC4122 variant
  2. uuid.NewString returns a 36-character hyphenated UUID string
  3. uuid.Parse successfully parses generated UUID string back to original UUID
  4. uuid.Parse returns error for invalid or malformed UUID strings
  5. uuid.MustParse returns parsed UUID without panic for valid string and panics on invalid input
  6. uuid.Validate returns nil for valid UUID string and error for invalid string
  7. uuid.FromBytes converts a 16-byte slice to UUID and returns error for invalid slice length

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