CodeSampleX

Sample

github.com/mitchellh/copystructure v1.2.0: Config

Verified sample for golang github.com/mitchellh/copystructure v1.2.0: Config. The contract ran on go 1.26 · linux alpine/x64 · docker and passed…

sha256:47e5e5d1011e212e41df21738062da417305b09604f364d017188bfa96d1e3f4

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 linux 24 · ubuntu · glibc 2.39 x64 go

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-21

Case

HOW
Goal
verify github.com/mitchellh/copystructure.Config in pkg:golang/github.com/mitchellh/copystructure@v1.2.0
Packages
Symbols
  • github.com/mitchellh/copystructure.Config
Created
2026-08-21T00:28:11Z

Contract

  1. copystructure.Config.Copy creates deep copies of nested structs, slices, and maps without mutating the original
  2. copystructure.Config.Copiers applies custom CopierFunc handlers for designated reflect.Type instances
  3. copystructure.Config.ShallowCopiers preserves pointer references for registered types instead of allocating new instances
  4. copystructure.Config.Lock acquires locks on sync.Locker pointer types during traversal and enforces pointer arguments

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