CodeSampleX

Sample

verify pkg:golang/google.golang.org/protobuf@v1.36.10

sha256:582dad90b9f8ef13c7684298209c31b9fce52a4894ec7148d8a29307d5270663

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/protobuf@v1.36.10
Packages
Created
2026-08-19T19:45:19Z

Contract

  1. structpb.NewValue and structpb.NewList convert Go primitives, slices, and maps to protobuf Value types and back
  2. anypb.MarshalFrom packs messages into Any and anypb.UnmarshalNew dynamically instantiates the concrete type
  3. protoregistry.GlobalTypes.FindMessageByName and FindMessageByURL resolve registered message descriptors
  4. protowire encodes and consumes fixed-width 32-bit and 64-bit numerical wire formats
  5. protojson.MarshalOptions with EmitDefaultValues and UseProtoNames produces standardized JSON output

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