CodeSampleX

Sample

verify lumberjack.Logger.Rotate in pkg:golang/gopkg.in/natefinch/lumberjack.v2@v2.2.1

sha256:e1604412af3a7d13c67853fd91eaf2e43d6fecf83e20766e8c73c56e736b3de6

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 1.26 linux 24 · ubuntu · glibc 2.39 amd64 go 1.26 go 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…
2026-08-26

Case

HOW
Goal
verify lumberjack.Logger.Rotate in pkg:golang/gopkg.in/natefinch/lumberjack.v2@v2.2.1
Packages
Symbols
  • lumberjack.Logger.Rotate
Environment
go 1.26.6
Created
2026-08-26T01:26:26Z

Contract

  1. lumberjack.Logger.Rotate() closes current log file and archives it as a timestamped backup
  2. lumberjack.Logger opens a new active log file for subsequent writes after Rotate()
  3. lumberjack.Logger.Rotate() returns nil error on successful rotation

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