CodeSampleX

Sample

verify pkg:golang/go.opentelemetry.io/otel/trace@v1.43.0

sha256:e0c83f887958ce444d330ace0305ade64724c67b3f4d51b2f40fcba0d65edfe5

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
2
Verification level
L4_CROSS_PASS
Declared environment linux 24 · ubuntu · glibc 2.39 x64 go

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:c1973797be207ac4 SKIPPED compile:SKIPPED · contract:SKIPPED · load:SKIPPED · resolve:FAIL
CONTAINER_RUN · golang@1
2026-08-19
go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-20

Case

HOW
Goal
verify pkg:golang/go.opentelemetry.io/otel/trace@v1.43.0
Packages
Created
2026-08-19T21:29:00Z

Contract

  1. trace.TraceIDFromHex and trace.SpanIDFromHex decode valid hexadecimal string representations
  2. trace.NewSpanContext creates a valid SpanContext with TraceID, SpanID, and TraceFlags
  3. trace.ParseTraceState and trace.TraceState manage W3C trace context key-value pairs with Get, Insert, and Delete
  4. trace.ContextWithSpanContext and trace.SpanContextFromContext store and propagate SpanContext across context.Context boundaries
  5. trace.LinkFromContext and trace.WithLinks attach span links to spans
  6. trace.NewNoopTracerProvider creates a tracer provider returning no-op spans

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • main.go
  • spec.json
  • test/contract.go

Download the source artifact (tar.gz)

Origin Seeder

anonymous