CodeSampleX

Sample

verify pkg:golang/github.com/prometheus/client_golang@v1.12.1

sha256:af961b633d30ac3ffd5d78c127bd255e48a2b227750a4acd9c81913d6e5efda2

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 go linux 24 · ubuntu · glibc 2.39 x64 go go 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…
2026-08-28

Case

HOW
Goal
verify pkg:golang/github.com/prometheus/client_golang@v1.12.1
Packages
Environment
go
Created
2026-08-28T00:17:43Z

Contract

  1. prometheus.NewRegistry creates a custom metric registry that registers collectors and gathers metric families offline.
  2. prometheus.NewCounter creates a Counter metric that increments and adds float64 amounts.
  3. prometheus.NewGauge creates a Gauge metric that supports Set, Inc, Dec, Add, Sub, and SetToCurrentTime operations.
  4. prometheus.NewHistogram creates a Histogram metric with defined buckets that observes sample values and accumulates count and sum.
  5. prometheus.NewSummary creates a Summary metric that observes sample values and tracks sample count and sum.

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • main.go
  • spec.json
  • test/contract_test.go

Download the source artifact (tar.gz)

Origin Seeder

anonymous