Sample
verify pkg:maven/com.fasterxml.jackson.core/jackson-core@2.21.4
sha256:f0de0fbf26fb122f33bd693fe4dca76b08a905e5254f0ae2d25e173089d82108
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
- 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
Case
HOW- Goal
- verify pkg:maven/com.fasterxml.jackson.core/jackson-core@2.21.4
- Symbols
-
- JsonFactory.createGenerator
- JsonFactory.createParser
- JsonGenerator.writeStartObject
- JsonGenerator.writeStringField
- JsonParser.nextToken
- JsonParser.getText
- JsonToken
- Environment
- java 21
- Created
- 2026-08-18T12:57:50Z
Contract
- JsonGenerator streams structured JSON objects, arrays, strings, numbers, and boolean fields.
- JsonParser tokenizes JSON streams and reads field names, string values, integers, and booleans sequentially.
Files
- PROMPT.md
- csx.json
- pom.xml
- spec.json
- src/Contract.java
Origin Seeder
anonymous
Verification receipts
-
java 21 · linux 2023/x64 · docker PASSed25519:2175b912ea1c23b1