Sample
com.fasterxml.jackson.core/jackson-annotations 2.21: ObjectMapper.writeValueAsString, ObjectMapper.readValue, ObjectMapper.readTree
Verified sample for maven com.fasterxml.jackson.core/jackson-annotations 2.21: ObjectMapper.writeValueAsString, ObjectMapper.readValue…
sha256:c2b4614f8f1a7a04cb56f00a153bbb2e1e626af9a0c364853b9c52d2208857b0
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 1
Declared environment
java 21 linux 2023 · glibc x64 java 21 java 21 maven 3
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| java 21 · linux 2023/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:PASS · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · maven-java@1 |
2026-08-19 |
| java 25 · linux 2023/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:PASS · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · maven-java@1 |
2026-08-19 |
Case
HOW- Goal
- verify pkg:maven/com.fasterxml.jackson.core/jackson-databind@2.21.4
- Packages
- Symbols
-
- ObjectMapper.writeValueAsString
- ObjectMapper.readValue
- ObjectMapper.readTree
- ObjectMapper.createObjectNode
- DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES
- JsonNode
- Environment
- java 21
- Created
- 2026-08-18T13:01:25Z
Contract
- ObjectMapper serializes and deserializes structured POJOs with JSON property mappings and constructor creators.
- ObjectMapper builds and traverses JsonNode tree models and constructs dynamic ObjectNodes.
- DeserializationFeature configuration controls handling of unmapped JSON attributes.
Files
- PROMPT.md
- csx.json
- pom.xml
- spec.json
- src/Contract.java
Origin Seeder
anonymous