CodeSampleX

Sample

verify pkg:golang/github.com/shopspring/decimal@v1.2.0

sha256:98b0dda6842a7f6abb3056cfe3d42d04422934afcd892938cededc2a6b0c52d1

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…
2026-08-28

Case

HOW
Goal
verify pkg:golang/github.com/shopspring/decimal@v1.2.0
Packages
Created
2026-08-28T09:15:43Z

Contract

  1. decimal.NewFromString parses exact decimal representations without binary floating-point inaccuracy
  2. decimal.Decimal arithmetic operations Add, Sub, Mul, and DivRound perform exact arithmetic
  3. decimal.Decimal rounding methods Round and RoundBank round to specified precision using standard and banker's rounding
  4. decimal.Decimal comparison methods Equal, GreaterThan, and LessThan compare numeric values independently of scale representation
  5. decimal.Decimal MarshalJSON and UnmarshalJSON serialize and deserialize decimal values as valid JSON numbers

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