CodeSampleX

Sample

verify pkg:maven/org.springframework.boot/spring-boot@4.1.0

sha256:bc8913398b0f583471b0342cd7dc7df88293fd223ca45bc26f5900c4910eed29

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

Execution context
java 21
Operating system
linux 2023 · glibc
Architecture
x64
Runtime
java 21
Language
java 21
Package manager
maven 3

Verification-run environments

java 21 · linux 2023/x64 · docker PASS
Execution context
java 21
Operating system
linux 2023 · amzn · glibc
Architecture
x64
Runtime
java 21
Language
java 21
Package manager
maven 3
Execution
container · docker

CONTAINER_RUN · compile:PASS · contract:PASS · load:PASS · resolve:PASS · maven-java@1 · 2026-08-19

Case

HOW
Goal
verify pkg:maven/org.springframework.boot/spring-boot@4.1.0
Packages
Environment
java 21
Created
2026-08-18T12:33:15Z

Contract

  1. SpringBootVersion reports the pinned 4.1.0 implementation on the verified classpath.
  2. An option with a key and value is recognized in option names and returns its single parsed value.
  3. A flag option without an equals sign is recognized in option names and returns an empty list rather than null or a dummy string.
  4. An option assigned an empty string returns a list containing the empty string.
  5. Repeated options collect all assigned values in order.
  6. An unpassed option is absent from option names, returns false for containsOption, and returns null for getOptionValues.
  7. Positional arguments are excluded from option names and collected in order in getNonOptionArgs.
  8. getSourceArgs preserves the complete original raw command-line array.

Files

  • PROMPT.md
  • csx.json
  • pom.xml
  • spec.json
  • src/Contract.java

Download the source artifact (tar.gz)

Origin Seeder

anonymous

Verification receipts

  • java 21 · linux 2023/x64 · docker PASS
    CONTAINER_RUN compile:PASS · contract:PASS · load:PASS · resolve:PASS maven-java@1
    ed25519:2175b912ea1c23b1