CodeSampleX

Sample

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

sha256:a68fc902540f54ba0ac13cf089e5291632b4a146c14139ac0964454dc64c7787

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
Created
2026-08-18T20:01:30Z

Contract

  1. assert pgx.StrictNamedArgs rewrites named parameters into $1, $2 positional placeholders and extracts matching arguments in order
  2. assert pgx.StrictNamedArgs reuses identical positional parameter placeholders when the same named argument appears multiple times
  3. assert pgx.StrictNamedArgs rejects queries referencing missing named parameters with an error unlike pgx.NamedArgs which produces nil
  4. assert pgtype.Numeric parses fixed-point decimals, preserving negative exponent scale and unscaled big integer values
  5. assert pgtype.Numeric represents NaN and Infinity modifiers formatted as standard SQL driver values
  6. assert pgtype.Date distinguishes calendar dates, SQL NULL, and PostgreSQL infinity modifiers without timezone shifts
  7. assert pgtype.FlatArray decodes 1-dimensional PostgreSQL text arrays into strongly typed Go string slices

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous