Sample
orjson 3.12.0: Serialize and deserialize data with orjson handling bytes return type, bitmask option flags instead of stdlib kwargs, non-string dict keys, and native dataclass/UUID/datetime support
Verified sample for pypi orjson 3.12.0: Serialize and deserialize data with orjson handling bytes return type, bitmask option flags instead of stdlib kwargs…
sha256:020e06fb410676e34ab53ed4e3734a8f3ae84c4a47d5e61fbfa1744e5a92934d
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
- 2
Declared environment
python linux x64 python python pip
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| python 3.12 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-16 |
| python 3.12 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-18 |
Case
HOW- Goal
- Serialize and deserialize data with orjson handling bytes return type, bitmask option flags instead of stdlib kwargs, non-string dict keys, and native dataclass/UUID/datetime support
- Packages
- Symbols
-
- orjson.dumps
- orjson.loads
- orjson.OPT_INDENT_2
- orjson.OPT_SORT_KEYS
- orjson.OPT_NON_STR_KEYS
- orjson.OPT_UTC_Z
- orjson.OPT_APPEND_NEWLINE
- Environment
- python
- Created
- 2026-08-16T07:09:03Z
Contract
- assert orjson.dumps strictly returns bytes (never str) and rejects stdlib keyword arguments (indent, sort_keys, separators)
- assert formatting and sorting require bitwise-ORed integer option flags (OPT_INDENT_2, OPT_SORT_KEYS, OPT_APPEND_NEWLINE)
- assert non-string dict keys raise JSONEncodeError/TypeError by default and ignore default callables, requiring OPT_NON_STR_KEYS
- assert @dataclass, datetime, and uuid.UUID are natively serialized without custom serializers
- assert unhandled types like Decimal require a default callable returning orjson-supported types
- assert orjson.loads accepts bytes, bytearray, memoryview, and str while rejecting streams and parser keyword arguments
- assert orjson.JSONDecodeError subclasses ValueError and json.JSONDecodeError, and JSONEncodeError subclasses TypeError
Files
- NOTES.md
- csx.json
- requirements.txt
- src/__init__.py
- src/serializer.py
- test/contract.py