CodeSampleX

Sample

token bucket rate limiting with Wait and Allow

sha256:6731d057d62d179cd8b25bdd0ed5bf80f0ae0aabcaa55a5c61941d23ae85488a

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 amd64 go 1.26 go 1

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…
2026-08-23

Case

HOW
Goal
token bucket rate limiting with Wait and Allow
Packages
Symbols
  • golang.org/x/time/rate.Limiter.Allow
  • golang.org/x/time/rate.Limiter.Wait
  • golang.org/x/time/rate.NewLimiter
Created
2026-08-23T16:25:22Z

Contract

  1. limiter := rate.NewLimiter(rate.Limit(10), 1)
  2. limiter.Allow() == true
  3. limiter.Allow() == false
  4. ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
  5. limiter.Wait(ctx) == nil

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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