CodeSampleX

Sample

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

sha256:446a5f4017dee43a651e1e1f00cd01208c3374f0448a3bef7bf90aefa47e742c

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.ParseBytes
  • uuid.Validate
  • uuid.Must
Created
2026-08-19T02:51:51Z

Contract

  1. uuid.New generates a non-nil 16-byte RFC4122 version 4 UUID
  2. uuid.NewString returns a 36-character hyphenated UUID string
  3. uuid.Parse correctly parses a valid UUID string into matching uuid.UUID
  4. uuid.ParseBytes correctly parses a valid 36-byte UUID slice into matching uuid.UUID
  5. uuid.Validate validates canonical hyphenated UUID strings and reports errors for malformed strings
  6. uuid.Must returns valid UUID on nil error and panics when error is not nil

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