CodeSampleX

Sample

github.com/google/uuid v1.6.0: IsInvalidLengthError, Must

Verified sample for golang github.com/google/uuid v1.6.0: IsInvalidLengthError, Must. The contract ran on go 1.26 · linux alpine/x64 · docker and passed…

sha256:7f96086f9a94da30eb80f190f5bfaf70982dcb2342d55daa54ef213ddf5aa143

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
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.IsInvalidLengthError
  • uuid.Must
Created
2026-08-19T02:43:44Z

Contract

  1. uuid.Must returns UUID without panicking when error is nil
  2. uuid.Must panics when non-nil error is passed
  3. uuid.IsInvalidLengthError returns true for parse errors caused by invalid string length
  4. uuid.IsInvalidLengthError returns true for parse errors from byte slice with invalid length
  5. uuid.IsInvalidLengthError returns false for nil error
  6. uuid.IsInvalidLengthError returns false for non-length format errors

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