CodeSampleX

Sample

verify pkg:golang/go.uber.org/multierr@v1.10.0

sha256:b7be0cba5e2914a332bda424e3b9421dc6a035bcea49810e527d83d02b579c42

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 go 1.26 linux 24 · ubuntu · glibc 2.39 x64 go 1.26 go 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		 2026-08-20

Case

HOW
Goal
verify pkg:golang/go.uber.org/multierr@v1.10.0
Packages
Symbols
  • multierr.Combine
  • multierr.Append
  • multierr.AppendInto
  • multierr.AppendFunc
  • multierr.AppendInvoke
  • multierr.Errors
  • multierr.Close
  • multierr.Invoke
Environment
go 1.26.6
Created
2026-08-20T23:02:57Z

Contract

  1. multierr.Combine merges multiple errors into a single error preserving all non-nil errors
  2. multierr.Append appends a secondary error onto a primary error
  3. multierr.AppendInto appends an error into a pointer destination and reports whether an error was added
  4. multierr.AppendFunc and multierr.AppendInvoke safely capture deferred error-returning functions and closers
  5. multierr.Errors inspects and extracts the underlying slice of errors from a combined error

Files

  • PROMPT.md
  • contract_test.go
  • csx.json
  • go.mod
  • go.sum
  • multierr_sample.go
  • spec.json

Download the source artifact (tar.gz)

Origin Seeder

anonymous