CodeSampleX

Sample

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

sha256:7dcf219eaf462943b028a4c1fda6f5680f077874b027d72c31cba9b48654ac47

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
  • github.com/jackc/pgx/v5.CopyFromRows
  • github.com/jackc/pgx/v5.CopyFromSlice
  • github.com/jackc/pgx/v5.CopyFromFunc
  • github.com/jackc/pgx/v5.CopyFromSource
Created
2026-08-19T11:14:27Z

Contract

  1. pgx.CopyFromRows creates a CopyFromSource that iterates sequentially over row slices and yields each row's values
  2. pgx.CopyFromRows handles empty input rows slice with immediate false from Next and nil error
  3. pgx.CopyFromSlice generates rows dynamically by invoking generator callback with index from 0 to length - 1
  4. pgx.CopyFromSlice records generator callback error and halts iteration
  5. pgx.CopyFromFunc streams rows until callback returns nil row and nil error to signal end of data
  6. pgx.CopyFromFunc halts iteration and reports error when callback returns an error
  7. pgx.CopyFromRows, pgx.CopyFromSlice, and pgx.CopyFromFunc satisfy 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