Sample
gopkg.in/yaml.v3 v3.0.1: Unmarshal YAML documents into yaml.Node AST where top-level mappings are wrapped in a DocumentNode and mapping entries are stored as a flat slice of alternating key and value nodes.
Verified sample for golang gopkg.in/yaml.v3 v3.0.1: Unmarshal YAML documents into yaml.Node AST where top-level mappings are wrapped in a DocumentNode and…
sha256:5a3c517c14c2b02913bd1dddf4ceb354fa20a12daf9bd8874291fdb094b5e78b
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 |
2026-08-17 |
| 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
- Unmarshal YAML documents into yaml.Node AST where top-level mappings are wrapped in a DocumentNode and mapping entries are stored as a flat slice of alternating key and value nodes.
- Packages
- Symbols
-
- yaml.Node
- yaml.Unmarshal
- yaml.Node.Decode
- Environment
- go
- Created
- 2026-08-17T20:57:24Z
Contract
- yaml.Unmarshal into *yaml.Node produces a root DocumentNode with Kind 1 whose Content slice wraps the top-level MappingNode (Kind 4) at index 0 rather than returning a MappingNode directly.
- MappingNode.Content is a flat slice of 2*N nodes where even indices hold key scalar nodes and odd indices hold value nodes.
- HeadComment annotations attach to key nodes while inline LineComment annotations attach to value nodes.
- yaml.Node.Decode decodes AST subtrees directly into Go struct types.
- In-place AST scalar modifications preserve HeadComment and LineComment annotations across yaml.Encoder serialization.
- Types implementing UnmarshalYAML(value *yaml.Node) receive AST position metadata (Line and Column) and can decode underlying values via value.Decode.
Files
- NOTES.md
- csx.json
- go.mod
- go.sum
- yaml_test.go