CodeSampleX

Sample

github.com/go-playground/validator/v10 v10.30.3

Verified sample for golang github.com/go-playground/validator/v10 v10.30.3. The contract ran on go 1.26 · linux alpine/x64 · docker and passed…

sha256:0131e082e97acfdbb4bdbd11dd5524e9c7a0d286f7627c8d8104fee3ed4d3de0

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
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