Sample
verify golang.org/x/sys/unix.Close in pkg:golang/golang.org/x/sys@v0.0.0-20220406155245-289d7a0edf71
sha256:16878e0735532e9de8541d7c1dbc0803ccb97f31a6bb7d2b54277220f0d680fc
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 golang.org/x/sys/unix.Close in pkg:golang/golang.org/x/sys@v0.0.0-20220406155245-289d7a0edf71
- Symbols
-
- golang.org/x/sys/unix.Close
- Created
- 2026-08-27T15:16:35Z
Contract
- unix.Close successfully closes valid file descriptors without error
- unix.Close returns EBADF when closing an invalid file descriptor
- unix.Close returns EBADF when attempting to close an already-closed file descriptor
- unix.Close on the write end of a pipe causes read on the read end to receive EOF
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous