CodeSampleX

Sample

github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec: multiply large big.Int numbers using bigfft.Mul

Verified sample for golang github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec: multiply large big.Int numbers using bigfft.Mul. The contract…

sha256:59093100cfe9c1c64f5a0b3001cce1c3da336308f62f3b003264f34c52d15f3d

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 windows 11 x64 go

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
multiply large big.Int numbers using bigfft.Mul
Packages
Symbols
  • bigfft.Mul
Created
2026-08-18T17:26:50Z

Contract

  1. bigfft.Mul(x, y) returns a *big.Int equal to the product x * y matching math/big.Int.Mul
  2. bigfft.Mul correctly multiplies zero and signed big.Int operands
  3. bigfft.Mul computes exact products for multi-limb large integers up to 8192 bits

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous