CodeSampleX

Sample

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

sha256:d9cb7b96adc73f132c98546d601be8a4d0bb3c6e7a83f89f9bd45aea3ea69c07

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/google.golang.org/protobuf@v1.36.10
Packages
Created
2026-08-19T19:34:42Z

Contract

  1. proto.Size computes exact byte length of marshaled wire format messages
  2. prototext.MarshalOptions formats messages to text and prototext.Unmarshal parses back
  3. timestamppb and durationpb validate timestamps and durations via CheckValid and conversion
  4. proto.Merge merges populated fields from source message into destination
  5. proto.Reset clears all message fields back to default zero values

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