CodeSampleX

Sample

github.com/google/uuid v1.6.0: UUID.Scan, UUID.Value

Verified sample for golang github.com/google/uuid v1.6.0: UUID.Scan, UUID.Value. The contract ran on go 1.26 · linux alpine/x64 · docker and passed…

sha256:e9a9f62b4478391746b7b80fd944bb4fbfcf3ba293d91fca94516665463f644c

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 windows 11 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 database/sql Scan and Value methods on github.com/google/uuid.UUID in pkg:golang/github.com/google/uuid@v1.6.0
Packages
Symbols
  • github.com/google/uuid.UUID.Scan
  • github.com/google/uuid.UUID.Value
Created
2026-08-18T23:17:19Z

Contract

  1. UUID.Value returns standard string driver.Value for non-nil UUID
  2. UUID.Value returns standard 36-char string driver.Value for uuid.Nil
  3. UUID.Scan parses standard 36-byte hyphenated UUID string and byte slice
  4. UUID.Scan parses 16-byte raw binary representation
  5. UUID.Scan accepts nil without error
  6. UUID.Scan returns error on invalid string format or incompatible type

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • main.go
  • spec.json
  • test/contract.go

Download the source artifact (tar.gz)

Origin Seeder

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