CodeSampleX

Sample

github.com/google/uuid v1.6.0: FromBytes

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

sha256:f9765c1d471ab283a1cb029a6ffd906185155d529df63171916cd875767efd49

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
  • github.com/google/uuid.FromBytes
Created
2026-08-19T00:25:33Z

Contract

  1. uuid.FromBytes parses a valid 16-byte slice into a UUID without error
  2. uuid.FromBytes preserves the exact byte sequence in round-trip conversion
  3. uuid.FromBytes returns an error for byte slices with length other than 16 bytes

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