Sample
go.opentelemetry.io/otel/sdk v1.35.0: Raw SDK samplers passed to WithSampler strip the ParentBased decorator, dropping incoming remote sampled spans or sampling unsampled fragments unless explicitly wrapped in ParentBased
Verified sample for golang go.opentelemetry.io/otel/sdk v1.35.0: Raw SDK samplers passed to WithSampler strip the ParentBased decorator, dropping incoming…
sha256:22889097515d91070760080551a1b9e99943837dd4e491fb6ab40c14b0256923
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
- Raw SDK samplers passed to WithSampler strip the ParentBased decorator, dropping incoming remote sampled spans or sampling unsampled fragments unless explicitly wrapped in ParentBased
- Symbols
-
- go.opentelemetry.io/otel/sdk/trace.NewTracerProvider
- go.opentelemetry.io/otel/sdk/trace.WithSampler
- go.opentelemetry.io/otel/sdk/trace.ParentBased
- go.opentelemetry.io/otel/sdk/trace.NeverSample
- go.opentelemetry.io/otel/sdk/trace.AlwaysSample
- go.opentelemetry.io/otel/sdk/trace/tracetest.NewInMemoryExporter
- Environment
- go
- Created
- 2026-08-16T07:27:30Z
Contract
- assert raw NeverSample drops child spans even when remote parent context is sampled
- assert raw AlwaysSample forces child span recording even when remote parent context is unsampled
- assert ParentBased(NeverSample) drops unparented root spans
- assert ParentBased(NeverSample) records and exports child spans when remote parent is sampled
- assert ParentBased(NeverSample) drops child spans when remote parent is unsampled
Files
- NOTES.md
- csx.json
- go.mod
- go.sum
- sampler_test.go