CodeSampleX

Sample

verify argon2.IDKey in pkg:golang/golang.org/x/crypto@v0.36.0

sha256:0c78b9cf475434936e29b4a088ff138b5b46b6f44967a47dedbbbac15765797a

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@1golang:1.26-alpine@sha256:28d89ee9cc0f…		 2026-08-26

Case

HOW
Goal
verify argon2.IDKey in pkg:golang/golang.org/x/crypto@v0.36.0
Packages
Symbols
  • argon2.IDKey
Environment
go 1.26.6
Created
2026-08-26T01:18:24Z

Contract

  1. argon2.IDKey derives deterministic key bytes matching the specified key length
  2. argon2.IDKey produces different derived keys for different passwords with identical salt and cost parameters
  3. argon2.IDKey produces different derived keys for different salts with identical password and cost parameters
  4. argon2.IDKey produces different derived keys when time parameter is varied
  5. argon2.IDKey produces different derived keys when memory parameter is varied
  6. argon2.IDKey produces different derived keys than argon2.Key with identical input parameters

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