Pith Number

pith:PW3OAYSH

pith:2025:PW3OAYSHVGEFPD4EKKEIWTLN7F

not attested not anchored not stored refs pending

pychop: Emulating Low-Precision Arithmetic in Numerical Methods and Neural Networks

Erin Carson, Xinye Chen

arxiv:2504.07835 v6 · 2025-04-10 · cs.LG · cs.NA · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PW3OAYSHVGEFPD4EKKEIWTLN7F}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

An 83-Format Numeric Catalog with Bit-Exact Conformance Vectors: A Vendor-Neutral Reference for FP8, BF16, MXFP4, and Microscaling Formats

Receipt and verification

First computed	2026-07-31T01:32:23.522766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

7db6e06247a988578f8452888b4d6df97bdf9ab7e1c8c3be5cd6af61c2cb5b8f

Aliases

arxiv: 2504.07835 · arxiv_version: 2504.07835v6 · doi: 10.48550/arxiv.2504.07835 · pith_short_12: PW3OAYSHVGEF · pith_short_16: PW3OAYSHVGEFPD4E · pith_short_8: PW3OAYSH

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/PW3OAYSHVGEFPD4EKKEIWTLN7F \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 7db6e06247a988578f8452888b4d6df97bdf9ab7e1c8c3be5cd6af61c2cb5b8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "052d65db6e34d4a36622c651e37f41fa159621aad7a0a00ff40c78d3406354ed",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-04-10T15:12:29Z",
    "title_canon_sha256": "4b8a6606ec3290456b1a345e682a8244fe671c63979aa560d9fbec85094c3cc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.07835",
    "kind": "arxiv",
    "version": 6
  }
}