CodeSampleX

Sample

verify attribute.NewSet in pkg:golang/go.opentelemetry.io/otel@1.35.0

sha256:419e2f70cf0bfeb5d17f2503a6c65f659395d86620bc4a8138ad3e376360c5b1

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
1
Verification level
L4_CROSS_PASS

Declared environment

Execution context
go 1.26
Operating system
linux
Architecture
x64
Runtime
go 1.26
Language
go
Package manager
gomod

Verification-run environments

go 1.26 · linux alpine/x64 · docker PASS
Execution context
go 1.26
Operating system
linux alpine · musl
Architecture
x64
Runtime
go 1.26
Language
go
Package manager
gomod
Execution
container · docker

CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · go@1 · 2026-08-19

Case

HOW
Goal
verify attribute.NewSet in pkg:golang/go.opentelemetry.io/otel@1.35.0
Packages
Symbols
  • attribute.NewSet
  • attribute.Set.Value
  • attribute.Set.HasValue
  • attribute.Set.Equals
  • attribute.Set.Len
Environment
go 1.26
Created
2026-08-18T13:21:35Z

Contract

  1. attribute.NewSet creates an immutable key-value set that allows O(1) attribute lookup by key.
  2. Duplicate keys are deduplicated during NewSet construction where the last value for a given key takes precedence.
  3. Set equality via Equals correctly matches sets containing identical key-values regardless of original insertion order.
  4. Calling NewSet with no arguments returns an empty Set with Len == 0.

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous

Verification receipts

  • go 1.26 · linux alpine/x64 · docker PASS
    CONTAINER_RUN compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS go@1
    ed25519:2175b912ea1c23b1