CodeSampleX

Sample

verify pkg:golang/github.com/google/uuid@v1.6.0

sha256:1253cbc7e25639dac5ad80066be7f27df33437b54477427e2ce8e521c0949167

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 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 pkg:golang/github.com/google/uuid@v1.6.0
Packages
Symbols
  • uuid.UUID.Value
  • uuid.UUID.Scan
  • uuid.UUID.URN
Created
2026-08-18T21:25:53Z

Contract

  1. uuid.UUID Value returns canonical 36-character string representation as driver.Value
  2. uuid.UUID Scan populates UUID from valid 36-character string
  3. uuid.UUID Scan populates UUID from valid 16-byte slice
  4. uuid.UUID Scan returns no error when scanning nil
  5. uuid.UUID Scan returns error for unsupported types or malformed input
  6. uuid.UUID URN returns standard urn:uuid: prefixed canonical string

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous