CodeSampleX

Sample

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

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

sha256:09d0d3a714e19a7855d6449b7a0d472f088bd09469c1a88fdf6c9ea85748bcb9

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.Copy in pkg:golang/github.com/mitchellh/copystructure@v1.2.0
Packages
Symbols
  • github.com/mitchellh/copystructure.Copy
Created
2026-08-21T00:32:27Z

Contract

  1. copystructure.Copy creates a deep copy of nested map and slice structures where mutations to the copy do not affect the original
  2. copystructure.Copy creates an independent deep copy of struct pointers and preserves field values
  3. copystructure.Copy deep copies primitive values and returns nil error on valid inputs
  4. copystructure.Copy properly copies nested pointer references creating new memory addresses for referenced fields

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