CodeSampleX

Sample

github.com/google/uuid v1.6.0: Serialize and deserialize UUIDs via binary and text interfaces and implement database/sql driver Valuer and Scanner in google/uuid

Verified sample for golang github.com/google/uuid v1.6.0: Serialize and deserialize UUIDs via binary and text interfaces and implement database/sql driver…

sha256:01559efd6f5d6619f403e032e1754ae489f0d8596359844c49f473b6d6189530

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 linux 24 · ubuntu · glibc 2.39 x64 go wsl

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
Serialize and deserialize UUIDs via binary and text interfaces and implement database/sql driver Valuer and Scanner in google/uuid
Packages
Symbols
  • MarshalBinary
  • MarshalText
  • Scan
  • UnmarshalBinary
  • UnmarshalText
  • Value
Created
2026-08-19T01:26:28Z

Contract

  1. assert MarshalBinary serializes a UUID to 16 raw bytes and UnmarshalBinary restores the exact UUID or rejects invalid byte slice lengths
  2. assert MarshalText encodes a UUID into 36-byte lowercase hex string and UnmarshalText parses formatted byte slices or returns error on malformed input
  3. assert Value returns string representation conforming to database/sql driver.Valuer interface
  4. assert Scan implements database/sql sql.Scanner supporting string, 16-byte raw slice, 36-byte formatted slice, and nil inputs while rejecting unsupported types

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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