Sample
go.opentelemetry.io/otel v1.45.0: Multiple WithInstrumentationAttributes and WithInstrumentationAttributeSet options merge scope attributes with last-value-wins precedence instead of overwriting earlier options
Verified sample for golang go.opentelemetry.io/otel v1.45.0: Multiple WithInstrumentationAttributes and WithInstrumentationAttributeSet options merge scope…
sha256:754781c365eac75c8696c1c32b0184086b76a32bfc2e42ecdcf75496a3940a73
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
- Multiple WithInstrumentationAttributes and WithInstrumentationAttributeSet options merge scope attributes with last-value-wins precedence instead of overwriting earlier options
- Symbols
-
- go.opentelemetry.io/otel/trace.NewTracerConfig
- go.opentelemetry.io/otel/trace.WithInstrumentationAttributes
- go.opentelemetry.io/otel/trace.WithInstrumentationAttributeSet
- go.opentelemetry.io/otel/trace.TracerConfig.InstrumentationAttributes
- Environment
- go
- Created
- 2026-08-16T12:32:20Z
Contract
- assert multiple WithInstrumentationAttributes options merge disjoint keys across option calls
- assert duplicate keys across WithInstrumentationAttributes calls use last-value-wins semantics
- assert intra-call duplicate keys in WithInstrumentationAttributes synchronously deduplicate
- assert interleaved WithInstrumentationAttributes and WithInstrumentationAttributeSet merge correctly
- assert tracer version and schema URL options do not disturb merged instrumentation attributes
Files
- NOTES.md
- csx.json
- go.mod
- go.sum
- tracer_config_test.go