Sample
yaml 2.8.2: Serialize negative zero as -0 and preserve IEEE 754 negative zero during YAML parse and stringify round-trips
Verified sample for npm yaml 2.8.2: Serialize negative zero as -0 and preserve IEEE 754 negative zero during YAML parse and stringify round-trips. The…
sha256:83debf9531a32ec10e2301eb0efd2f1af96ca12f096ef9092196d85d7c1714a9
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
node linux x64 node node npm
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-16 |
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-18 |
Case
HOW- Goal
- Serialize negative zero as -0 and preserve IEEE 754 negative zero during YAML parse and stringify round-trips
- Packages
- Symbols
-
- YAML.stringify
- YAML.parse
- Environment
- node
- Created
- 2026-08-16T07:08:23Z
Contract
- assert YAML.stringify(-0) outputs '-0\n' rather than '0\n'
- assert YAML.stringify({ offset: -0 }) formats the property value as -0
- assert YAML.parse('-0') returns JavaScript -0 distinct from +0 via Object.is
- assert 1 / YAML.parse('-0') yields -Infinity
- assert a round-trip YAML.parse(YAML.stringify(-0)) preserves the negative zero sign
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- src/index.mjs
- test/contract.mjs