Sample
encoding/json 1.26.5: Prove that json.Encoder.Encode always writes a trailing newline to its output.
Verified sample for golang encoding/json 1.26.5: Prove that json.Encoder.Encode always writes a trailing newline to its output. The contract ran on go 1.26 …
sha256:d7f30a3d1e11d232925d842f097605706202d765193284ba4a9a02cdd384e0a1
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
go linux x64 go go go
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-16 |
| go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-18 |
Case
HOW- Goal
- Prove that json.Encoder.Encode always writes a trailing newline to its output.
- Packages
- Symbols
-
- encoding/json.Encoder.Encode
- Environment
- go
- Created
- 2026-08-16T13:03:31Z
Contract
- assert that json.NewEncoder(&buf).Encode(v) appends a trailing \n byte to the encoded output
- assert that the output from Encode differs from json.Marshal(v) exactly by that newline
Files
- NOTES.md
- csx.json
- encoder_newline_test.go
- go.mod