CodeSampleX

Sample

verify github.com/go-logfmt/logfmt.Encoder in pkg:golang/github.com/go-logfmt/logfmt@v0.6.0

sha256:6669960d12c59ab89f353ac3c36d7751eb812e7b81b0a0897e5a70112bb7e1ff

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 github.com/go-logfmt/logfmt.Encoder in pkg:golang/github.com/go-logfmt/logfmt@v0.6.0
Packages
Symbols
  • github.com/go-logfmt/logfmt.Encoder
Created
2026-08-27T21:52:07Z

Contract

  1. logfmt.NewEncoder initializes an Encoder writing formatted logfmt records to an io.Writer
  2. Encoder.EncodeKeyval writes formatted key=value pairs and EndRecord terminates the record with a newline
  3. Encoder.EncodeKeyvals encodes alternating key-value pairs and automatically pairs odd keys with null
  4. Encoder escapes quotes, newlines, and quotes strings containing whitespace in values
  5. Encoder.EncodeKeyval rejects nil keys with ErrNilKey, empty or dropped-rune keys with ErrInvalidKey, and struct keys with ErrUnsupportedKeyType
  6. Encoder.Reset resets encoder record separator state for a new record without writing a newline
  7. Encoder formats time.Time in RFC3339 format and handles custom fmt.Stringer types

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