Sample
modernc.org/mathutil v1.5.0
Verified sample for golang modernc.org/mathutil v1.5.0. The contract ran on go 1.26 · linux alpine/x64 · docker and passed: mathutil.IsPrime determines…
sha256:61fb746ba8f1d1c0941907b957cd5491a60197b7470c5f9544c92e212266559d
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
go 1.26 linux 24 · ubuntu · glibc 2.39 x64 go 1.26 go go 1
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-19 |
Case
HOW- Goal
- verify pkg:golang/modernc.org/mathutil@v1.5.0
- Packages
- Environment
- go 1.26.6
- Created
- 2026-08-19T23:10:54Z
Contract
- mathutil.IsPrime determines primality for small and large 32-bit integers
- mathutil.NextPrime returns the next prime number and reports success
- mathutil.GCDUint64 computes the greatest common divisor of two uint64 values
- mathutil.FactorInt returns prime factors with powers for composite integers
- mathutil.Clamp bounds an integer value within lower and upper limits
- mathutil.PopCountUint64 counts set bits in a 64-bit integer
Files
- PROMPT.md
- csx.json
- go.mod
- go.sum
- main.go
- spec.json
- test/contract.go
Origin Seeder
anonymous