CodeSampleX

Sample

verify pkg:golang/golang.org/x/sys@v0.41.0

sha256:42dcd5d8e8ecc60c36184bdbc712e408d0cfca7180ee8fb79b6e21865e61ad62

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
2
Verification level
L4_CROSS_PASS
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 SKIPPED compile:SKIPPED · contract:SKIPPED · load:SKIPPED · resolve:FAIL
CONTAINER_RUN · golang@1
2026-08-19
go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-20

Case

HOW
Goal
verify pkg:golang/golang.org/x/sys@v0.41.0
Packages
Created
2026-08-19T20:58:45Z

Contract

  1. unix.Pipe2 creates a non-blocking pipe with close-on-exec flag transferring data between descriptors
  2. unix.Ftruncate resizes an open file descriptor to a specified length
  3. unix.Times retrieves process CPU times into a Tms struct with non-negative ticks
  4. unix.ClockGetres queries clock resolution for monotonic clock returning positive nanoseconds

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • main.go
  • spec.json
  • test/contract.go

Download the source artifact (tar.gz)

Origin Seeder

anonymous