CodeSampleX

Sample

verify pkg:golang/github.com/google/pprof@v0.0.0-20210407192527-94a9f03dee38

sha256:b33fc091f8227b49b68d306a58810fbc74d64ca41b20290edcf3c6c9b447866b

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@1golang:1.26-alpine@sha256:28d89ee9cc0f…
2026-08-27

Case

HOW
Goal
verify pkg:golang/github.com/google/pprof@v0.0.0-20210407192527-94a9f03dee38
Packages
Symbols
  • github.com/google/pprof/profile.Merge
  • github.com/google/pprof/profile.Profile.CheckValid
  • github.com/google/pprof/profile.Profile.Copy
  • github.com/google/pprof/profile.Profile.Scale
Created
2026-08-27T23:04:42Z

Contract

  1. profile.Merge combines multiple profiles of identical structure by aggregating sample values
  2. profile.Profile.Copy creates an independent deep copy of the profile
  3. profile.Profile.Scale multiplies all sample values by a scaling factor

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • sample.go
  • spec.json
  • test/contract.go

Download the source artifact (tar.gz)

Origin Seeder

anonymous