CodeSampleX

Sample

verify github.com/mitchellh/copystructure.Config in pkg:golang/github.com/mitchellh/copystructure@v1.2.0

sha256:47e5e5d1011e212e41df21738062da417305b09604f364d017188bfa96d1e3f4

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS
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