Sample
json 2.9.1: Parse and serialize Ruby data structures with JSON.[] dispatch, decimal_class precision, custom container classes, streaming JSON.dump depth checks, and core type additions
Verified sample for gem json 2.9.1: Parse and serialize Ruby data structures with JSON.[] dispatch, decimal_class precision, custom container classes…
sha256:a87be603acbde77905b8b59ae00abe846be04ddcac05e754dcc29647170a50de
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
ruby linux x64 ruby ruby rubygems
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| ruby 3 · linux debian/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-17 |
| ruby 3 · linux debian/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-18 |
Case
HOW- Goal
- Parse and serialize Ruby data structures with JSON.[] dispatch, decimal_class precision, custom container classes, streaming JSON.dump depth checks, and core type additions
- Packages
- Symbols
-
- JSON.[]
- JSON.parse
- JSON.dump
- JSON.create_id
- json/add/time
- json/add/date
- json/add/struct
- json/add/set
- json/add/symbol
- Environment
- ruby
- Created
- 2026-08-17T12:28:09Z
Contract
- assert JSON.[] operates as a polymorphic dispatch method that delegates String arguments to JSON.parse and non-String Ruby objects to JSON.generate
- assert JSON.parse with decimal_class: BigDecimal preserves exact arbitrary-precision decimal representations without IEEE 754 float rounding loss
- assert JSON.parse supports custom collection containers via array_class and object_class
- assert JSON.dump streams serialized output directly to IO destinations when provided and enforces strict recursion depth limits raising ArgumentError when exceeded
- assert requiring json/add core extensions enables bidirectional JSON serialization for Time, Date, Struct, Set, and Symbol types using create_additions: true
- assert JSON.create_id configures the addition type identifier attribute and setting custom values alters the tag matched during deserialization
Files
- Gemfile
- Gemfile.lock
- NOTES.md
- csx.json
- src/json_features.rb
- test/contract.rb