CodeSampleX

Sample

Serialize and deserialize in-memory database, inspect column metadata with ColumnInfo, and query schema readonly status in modernc.org/sqlite

sha256:8339c9584b3a7caab27901eb3dbc00b85beafd7705efb7614b3bdb68ad582ece

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
Serialize and deserialize in-memory database, inspect column metadata with ColumnInfo, and query schema readonly status in modernc.org/sqlite
Packages
Symbols
  • modernc.org/sqlite.ColumnInfo
Created
2026-08-19T09:44:05Z

Contract

  1. assert ColumnInfo inspects query result column names, declared types, table names, database names, and origin names without executing query
  2. assert Serialize dumps in-memory database pages to byte slice and Deserialize restores schema and data into new database connection
  3. assert IsReadOnly reports schema read-only status and detects nonexistent database names
  4. assert FileControl interface provides FileControlDataVersion to inspect pager cache data version

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous