CodeSampleX

Sample

verify pkg:golang/github.com/go-playground/validator/v10@v10.30.3

sha256:0131e082e97acfdbb4bdbd11dd5524e9c7a0d286f7627c8d8104fee3ed4d3de0

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 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 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-20

Case

HOW
Goal
verify pkg:golang/github.com/go-playground/validator/v10@v10.30.3
Packages
Environment
go 1.26.6
Created
2026-08-20T13:05:00Z

Contract

  1. ValidateStruct accepts valid struct data and returns nil error
  2. ValidateStruct detects tag violations and returns FieldError with tag and field details
  3. RegisterValidation registers custom validation rules and evaluates them during struct validation
  4. ValidateStruct validates nested structs and collections with dive tag
  5. ValidateVar validates individual variables against tag expressions

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • spec.json
  • test/contract_test.go
  • validator_sample.go

Download the source artifact (tar.gz)

Origin Seeder

anonymous