CodeSampleX

Sample

verify pkg:golang/google.golang.org/grpc@v1.81.0

sha256:e5f7df11e389b562616fdf9c411b3b0f511ac63f6a83704b5b1c0b32252610c1

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
1
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 ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-19

Case

HOW
Goal
verify pkg:golang/google.golang.org/grpc@v1.81.0
Packages
Created
2026-08-19T19:59:39Z

Contract

  1. grpc.ChainUnaryInterceptor chains multiple server-side unary interceptors in execution order
  2. grpc.WithChainStreamInterceptor chains multiple client-side stream interceptors in execution order
  3. status.WithDetails attaches protobuf message details extracted via status.FromError and st.Details
  4. grpc.MaxRecvMsgSize on server rejects messages exceeding byte limit with codes.ResourceExhausted
  5. credentials.PerRPCCredentials attaches authentication metadata to outgoing RPC requests via grpc.WithPerRPCCredentials

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