CodeSampleX

Sample

encode and decode 32-bit and 64-bit floating point numbers using IEEE 754

sha256:b2e073cfd4e7e84514f60efb8b26d85178ca1b775de59f90359b6411384d7438

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-27

Case

HOW
Goal
encode and decode 32-bit and 64-bit floating point numbers using IEEE 754
Packages
Symbols
  • decodeF32
  • decodeF64
  • encodeF32
  • encodeF64
Environment
node 22.23.2
Created
2026-08-27T23:25:51Z

Contract

  1. assert encodeF32 returns a 4-byte little-endian array and decodeF32 round-trips single-precision floats
  2. assert encodeF32 and decodeF32 handle special float values including Infinity, -Infinity, and NaN
  3. assert encodeF64 returns an 8-byte little-endian array and decodeF64 round-trips double-precision floats
  4. assert encodeF64 and decodeF64 handle special double values including Infinity, -Infinity, and NaN
  5. assert decodeF32 and decodeF64 accept Uint8Array byte buffers as input

Files

  • PROMPT.md
  • csx.json
  • index.js
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

anonymous