CodeSampleX

Sample

generate xid, encode to string, parse from string, extract timestamp and bytes

sha256:323ba5a41b1c5dd8f93d9e0f7f3294d06cf03010b11a33672800cb5fd4f0617d

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 1.26 go 1

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…
2026-08-23

Case

HOW
Goal
generate xid, encode to string, parse from string, extract timestamp and bytes
Packages
Symbols
  • github.com/rs/xid.FromBytes
  • github.com/rs/xid.FromString
  • github.com/rs/xid.ID.Bytes
  • github.com/rs/xid.ID.String
  • github.com/rs/xid.ID.Time
  • github.com/rs/xid.New
Created
2026-08-23T16:59:41Z

Contract

  1. xid.New generates a non-nil 12-byte identifier with the current unix timestamp
  2. id.String returns a 20-character base32 lowercase representation of the identifier
  3. xid.FromString parses a valid 20-character string back to the equal xid.ID and rejects invalid format or length
  4. id.Bytes returns a 12-byte slice representation of the identifier
  5. xid.FromBytes parses a 12-byte slice back to the equal xid.ID and rejects slices of length other than 12
  6. id.Time extracts the embedded timestamp from the identifier truncated to seconds

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous