CodeSampleX

Sample

github.com/google/uuid v1.6.0: binary serialization with github.com/google/uuid MarshalBinary and UnmarshalBinary

Verified sample for golang github.com/google/uuid v1.6.0: binary serialization with github.com/google/uuid MarshalBinary and UnmarshalBinary. The contract…

sha256:8525be64586c339bd0d5b7d875cc90b3509b1e13e99976deb399027730db87ce

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
binary serialization with github.com/google/uuid MarshalBinary and UnmarshalBinary
Packages
Symbols
  • github.com/google/uuid.UUID.MarshalBinary
Created
2026-08-19T04:21:00Z

Contract

  1. UUID.MarshalBinary encodes UUID into a 16-byte binary representation without error
  2. UUID.UnmarshalBinary reconstructs exact original UUID from valid 16-byte slice
  3. UUID.UnmarshalBinary returns error for byte slices of invalid length
  4. UUID.MarshalBinary and UnmarshalBinary support uuid.Nil and arbitrary UUIDs in lossless round trip

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