CodeSampleX

Sample

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

sha256:c2f8666d49cb2f6875ac5f9a6dddde6791231829b5590867ec748afc9346e4ce

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 go 1.26 windows 11 x64 go 1.26 go go 1

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 github.com/google/uuid.ParseBytes in pkg:golang/github.com/google/uuid@v1.6.0
Packages
Symbols
  • github.com/google/uuid.ParseBytes
Environment
go 1.26.5
Created
2026-08-18T22:34:02Z

Contract

  1. uuid.ParseBytes parses standard 36-byte hyphenated UUID byte slices
  2. uuid.ParseBytes parses 32-byte hex byte slices without hyphens
  3. uuid.ParseBytes parses 45-byte URN-prefixed UUID byte slices
  4. uuid.ParseBytes parses 38-byte braced UUID byte slices
  5. uuid.ParseBytes produces identical UUID values as uuid.Parse
  6. uuid.ParseBytes returns an error for invalid length or non-hex byte slices

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