CodeSampleX

Sample

verify pkg:golang/github.com/mattn/go-isatty@v0.0.17

sha256:7c295929bdcf2e630fd157ce2047cb0fa8621073302e217e7b57139e3ee67a34

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 go 1.26 linux 24 · ubuntu · glibc 2.39 x64 go 1.26 go go 1

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/github.com/mattn/go-isatty@v0.0.17
Packages
Environment
go 1.26.6
Created
2026-08-19T23:38:15Z

Contract

  1. isatty.IsTerminal returns false for regular file descriptors
  2. isatty.IsTerminal returns false for invalid file descriptors
  3. isatty.IsCygwinTerminal returns false for regular file descriptors
  4. isatty.IsCygwinTerminal returns false for invalid file descriptors

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