CodeSampleX

Sample

verify github.com/dgraph-io/badger.ErrKeyNotFound in pkg:golang/github.com/dgraph-io/badger@v1.6.2

sha256:b994cbdfd6311bcb59c2974dbb439cb92cfbd26d3c0abaeb4e1b01d8eb930419

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 linux 24 · ubuntu · glibc 2.39 x64 go

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
2026-08-21

Case

HOW
Goal
verify github.com/dgraph-io/badger.ErrKeyNotFound in pkg:golang/github.com/dgraph-io/badger@v1.6.2
Packages
Symbols
  • github.com/dgraph-io/badger.ErrKeyNotFound
Created
2026-08-21T01:30:24Z

Contract

  1. badger.ErrKeyNotFound error message matches 'Key not found'
  2. txn.Get on nonexistent key returns badger.ErrKeyNotFound
  3. txn.Get on deleted key returns badger.ErrKeyNotFound
  4. badger.ErrKeyNotFound can be distinguished from nil and other errors using standard equality or errors.Is

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