CodeSampleX

Sample

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

sha256:81c2bccde514e45d5201fd93b2162074b999480405cba41745305db9f1f3a3db

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
2026-08-19T19:49:01Z

Contract

  1. protowire.EncodeZigZag and protowire.DecodeZigZag accurately transform signed integers to unsigned varints and back
  2. protowire.AppendString, AppendBytes, ConsumeString, and ConsumeBytes encode and decode length-delimited wire payloads
  3. fieldmaskpb.New and FieldMask.IsValid validate field paths against protobuf message descriptors
  4. protoreflect.ValueOf constructors wrap Go primitives into valid protoreflect.Value representations
  5. prototext.MarshalOptions formats messages into formatted text and prototext.Unmarshal reconstructs them

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