CodeSampleX

Sample

verify github.com/jackc/pgio.AppendUint64 in pkg:golang/github.com/jackc/pgio@v1.0.0

sha256:b7ece9471041a33f52ca02522202bdf8fae96d954a31b40f7740f223630b6ffd

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 github.com/jackc/pgio.AppendUint64 in pkg:golang/github.com/jackc/pgio@v1.0.0
Packages
Symbols
  • github.com/jackc/pgio.AppendUint64
Environment
go 1.26.6
Created
2026-08-26T01:40:19Z

Contract

  1. pgio.AppendUint64 appends an uint64 as 8 bytes in big-endian order to byte slice
  2. pgio.AppendUint64 appends to an existing byte slice preserving preceding bytes
  3. pgio.AppendUint64 handles zero, max uint64, and arbitrary 64-bit values

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