CodeSampleX

Sample

verify pkg:golang/github.com/jackc/pgx/v5@v5.10.0

sha256:a8f04765568dbb34c53ffbbc7a742a078612875908b5368036b92a478c748856

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 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
verify pkg:golang/github.com/jackc/pgx/v5@v5.10.0
Packages
Symbols
  • pgx.CopyFromRows
  • pgx.CopyFromSlice
  • pgx.CopyFromFunc
  • pgx.CopyFromSource
Created
2026-08-19T11:29:24Z

Contract

  1. assert pgx.CopyFromRows creates a CopyFromSource over row slices that iterates sequentially and returns row values
  2. assert pgx.CopyFromRows handles empty row sets with immediate false Next() and nil error
  3. assert pgx.CopyFromRows preserves heterogeneous value types including integers, strings, floats, booleans, byte slices, and nil
  4. assert pgx.CopyFromSlice creates a dynamic generator CopyFromSource passing sequential indices from 0 to length-1
  5. assert pgx.CopyFromSlice records generator errors in Err() and propagates them on Values()
  6. assert pgx.CopyFromFunc creates a stream CopyFromSource that terminates when returning nil row or an error
  7. assert pgx.CopyFromFunc captures stream errors and terminates Next() iteration immediately
  8. assert CopyFromRows, CopyFromSlice, and CopyFromFunc implement the pgx.CopyFromSource interface

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