CodeSampleX

Sample

github.com/google/uuid v1.6.0: identify UUID length errors with github.com/google/uuid.IsInvalidLengthError

Verified sample for golang github.com/google/uuid v1.6.0: identify UUID length errors with github.com/google/uuid.IsInvalidLengthError. The contract ran on…

sha256:3ba6b0d7ddb610c1c5ba2a71d1748238b4770fcf7493f40009ad89d5eb70341e

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
identify UUID length errors with github.com/google/uuid.IsInvalidLengthError
Packages
Symbols
  • github.com/google/uuid.IsInvalidLengthError
Created
2026-08-19T08:04:30Z

Contract

  1. uuid.IsInvalidLengthError returns true for parse errors caused by invalid string length
  2. uuid.IsInvalidLengthError returns true for byte slice parse errors with invalid length
  3. uuid.IsInvalidLengthError returns true for validation errors caused by invalid length
  4. uuid.IsInvalidLengthError returns false for non-length format and syntax errors
  5. uuid.IsInvalidLengthError returns false for nil and unrelated errors

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous