Sample
encoding/json 1.26.5: json.Marshal encodes byte slices as RFC 4648 Base64 strings but encodes fixed-size byte arrays as JSON numeric arrays, and json.Unmarshal rejects Base64 strings for byte arrays
Verified sample for golang encoding/json 1.26.5: json.Marshal encodes byte slices as RFC 4648 Base64 strings but encodes fixed-size byte arrays as JSON…
sha256:c499e69e71bdececea5b130c2df41004fadce97b547d67885f2b0a211574cf36
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 gomod
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
- json.Marshal encodes byte slices as RFC 4648 Base64 strings but encodes fixed-size byte arrays as JSON numeric arrays, and json.Unmarshal rejects Base64 strings for byte arrays
- Packages
- Symbols
-
- encoding/json.Marshal
- encoding/json.Unmarshal
- Environment
- go
- Created
- 2026-08-16T13:06:14Z
Contract
- assert json.Marshal encodes fixed-size byte array [N]byte as a JSON numeric array instead of a base64 string
- assert json.Unmarshal of a base64 string into [N]byte fails with UnmarshalTypeError
- assert json.Unmarshal of a JSON numeric array into [N]byte succeeds
- assert json.Marshal encodes byte slice []byte as a base64 string
- assert json.Unmarshal of a base64 string into []byte succeeds
- assert json.Unmarshal of a JSON numeric array into []byte succeeds
- assert json.Marshal encodes signed byte slice []int8 as a numeric array
Files
- .gitignore
- NOTES.md
- bytes_test.go
- csx.json
- go.mod