CodeSampleX

Sample

verify pkg:golang/modernc.org/memory@v1.5.0

sha256:c5d73a9097d60981f75d3a35aff5ae63b9e82ccd51cd5252e87e3ae532b89fe0

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 go 1.26 linux 24 · ubuntu · glibc 2.39 x64 go 1.26 go go 1

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/modernc.org/memory@v1.5.0
Packages
Environment
go 1.26.6
Created
2026-08-19T23:17:21Z

Contract

  1. Allocator.UnsafeMalloc allocates raw unsafe memory and Allocator.UnsafeFree releases it
  2. Allocator.UnsafeCalloc allocates zeroed unsafe memory blocks
  3. Allocator.UnsafeRealloc resizes unsafe memory blocks preserving original data
  4. UnsafeUsableSize returns the usable block capacity for unsafe pointers
  5. Allocator.UintptrMalloc and Allocator.UintptrRealloc manage raw uintptr memory buffers

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