CodeSampleX

Sample

modernc.org/memory v1.5.0

Verified sample for golang modernc.org/memory v1.5.0. The contract ran on go 1.26 · linux alpine/x64 · docker and passed: Allocator.Calloc allocates…

sha256:9a97c7453795e851b8021d9aea29c31142cdeba19c69cb5f4d0063be3656d173

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:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-20

Case

HOW
Goal
verify pkg:golang/modernc.org/memory@v1.5.0
Packages
Created
2026-08-19T23:14:17Z

Contract

  1. Allocator.Calloc allocates zero-initialized memory slices and Allocator.Free releases them
  2. Allocator.Malloc allocates uninitialized memory slices and Allocator.Realloc resizes slices preserving existing content
  3. UsableSize reports the actual usable capacity of allocated memory slices
  4. Allocator.UintptrCalloc and Allocator.UintptrFree manage memory allocations using uintptr addresses
  5. Allocator.Close releases OS resources allocated by the Allocator instance

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