Sample
serialize and deserialize data using flatbuffers.Builder
sha256:c857c6fce22159b271ccb77bceb842640241232ef609e20d92675087533a9b20
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
- 1
- Signing keys that built it
- 1
Declared environment
python 3.12 linux 24 · ubuntu · glibc 2.39 x64 python 3.12 python uv
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| python 3.12 · linux alpine/x64 · docker ed25519:c1973797be207ac4 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1python:3.12-alpine@sha256:d09d15e60962… |
2026-08-25 |
Case
HOW- Goal
- serialize and deserialize data using flatbuffers.Builder
- Packages
- Symbols
-
- flatbuffers.Builder
- Environment
- python 3.12
- Created
- 2026-08-25T20:11:39Z
Contract
- flatbuffers.Builder initializes with specified buffer capacity and tracks buffer offsets
- flatbuffers.Builder.CreateString serializes null-terminated UTF-8 strings into the buffer and returns valid offset
- flatbuffers.Builder.CreateByteVector serializes raw byte arrays and returns vector offset
- flatbuffers.Builder.CreateSharedString deduplicates repeated strings by reusing previously serialized offsets
- flatbuffers.Builder table serialization with StartObject, PrependInt32Slot, PrependFloat64Slot, and EndObject encodes vtables correctly
- flatbuffers.Builder.Finish sets the root table offset at index 0 allowing Table deserialization
- flatbuffers.Builder.FinishSizePrefixed prefixes the output buffer with the total buffer payload size
- flatbuffers.Builder.Clear resets buffer offsets allowing the builder instance to be reused
- flatbuffers.Builder enforces nesting rules by raising IsNestedError on nested StartObject calls
- flatbuffers.Builder raises BuilderNotFinishedError when Output is called before Finish
- flatbuffers.Builder raises IsNotNestedError when EndObject is called without an active StartObject
Files
- PROMPT.md
- csx.json
- pyproject.toml
- requirements.txt
- spec.json
- test/contract.py
- uv.lock
Origin Seeder
anonymous