Sample
verify golang.org/x/sync/syncmap.Map in pkg:golang/golang.org/x/sync@v0.22.0
sha256:790af6712925de14871c37b6dff75594fa6d129fee8ec89b8da639a4bd86fc09
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
- 1
- Signing keys that built it
- 1
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 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1golang:1.26-alpine@sha256:28d89ee9cc0f… |
2026-08-27 |
Case
HOW- Goal
- verify golang.org/x/sync/syncmap.Map in pkg:golang/golang.org/x/sync@v0.22.0
- Packages
- Symbols
-
- golang.org/x/sync/syncmap.Map
- Created
- 2026-08-27T22:02:28Z
Contract
- syncmap.Map Store stores key-value pair and Load retrieves it
- syncmap.Map Load on nonexistent key returns ok=false
- syncmap.Map LoadOrStore returns existing value if present without modifying
- syncmap.Map LoadOrStore stores and returns new value when key is absent
- syncmap.Map LoadAndDelete deletes key and returns previous value and loaded=true
- syncmap.Map Delete removes key from map
- syncmap.Map Swap replaces value and returns previous value
- syncmap.Map CompareAndSwap conditionally replaces value when old matches
- syncmap.Map CompareAndDelete conditionally deletes key when old matches
- syncmap.Map Range iterates over entries and stops when callback returns false
- syncmap.Map safely handles concurrent reads and writes from multiple goroutines
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous