Sample
go.opentelemetry.io/otel/sdk v1.24.0: ParentBased sampler delegates sampled remote parents to AlwaysSample and unsampled parents to NeverSample by default, overriding the root sampler configuration for any context containing a valid parent span
Verified sample for golang go.opentelemetry.io/otel/sdk v1.24.0: ParentBased sampler delegates sampled remote parents to AlwaysSample and unsampled parents…
sha256:53b6e958b9713543736332d7b7f87d665da9d8c7c6468e96529ad968c51148fc
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
- ParentBased sampler delegates sampled remote parents to AlwaysSample and unsampled parents to NeverSample by default, overriding the root sampler configuration for any context containing a valid parent span
- Packages
- Symbols
-
- go.opentelemetry.io/otel/sdk/trace.ParentBased
- Environment
- go
- Created
- 2026-08-17T06:42:33Z
Contract
- ParentBased(NeverSample()) samples and exports child spans when the context contains a sampled remote parent, because ParentBased delegates sampled remote parents to AlwaysSample() by default rather than the configured root sampler.
- ParentBased(AlwaysSample()) drops and suppresses child spans when the context contains an unsampled remote or local parent, because ParentBased delegates unsampled parents to NeverSample() by default.
- Only root spans without a valid parent context evaluate the root sampler passed to ParentBased.
- ParentBased.Description() returns a composite string reflecting the root sampler and all four default sub-samplers.
Files
- NOTES.md
- csx.json
- go.mod
- go.sum
- tracer_test.go