CodeSampleX

Sample

compress and decompress data using s2 streaming encoder and decoder in pkg:golang/github.com/klauspost/compress@v1.12.3

sha256:ad4853247d93d6196124f7ac0d4b68271c3e32a58bff3c6377d43fb0f6fcf027

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

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
compress and decompress data using s2 streaming encoder and decoder in pkg:golang/github.com/klauspost/compress@v1.12.3
Packages
Symbols
  • github.com/klauspost/compress/s2.NewReader
  • github.com/klauspost/compress/s2.NewWriter
Created
2026-08-27T17:33:06Z

Contract

  1. s2.NewWriter compresses data stream and s2.NewReader decompresses and restores exact original payload
  2. s2.NewWriter and s2.NewReader correctly roundtrip empty input payload
  3. s2.NewReader returns error when reading corrupted or invalid stream
  4. s2.NewWriter supports encoder options and stream resetting

Files

  • PROMPT.md
  • contract_test.go
  • csx.json
  • go.mod
  • go.sum
  • s2.go
  • spec.json

Download the source artifact (tar.gz)

Origin Seeder

anonymous