Pith Number

pith:U73XMZ4L

pith:2025:U73XMZ4LE3GVPK36TV5CIT3CDF

not attested not anchored not stored refs pending

Physics-Constrained Machine Learning for Chemical Engineering

Angan Mukherjee, Biological Engineering, Madison, University of Wisconsin-Madison, USA), Victor M. Zavala (Department of Chemical

arxiv:2508.20649 v1 · 2025-08-28 · cs.LG · cs.SY · eess.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U73XMZ4LE3GVPK36TV5CIT3CDF}

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.

Receipt and verification

First computed	2026-07-05T12:00:56.774116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7f776678b26cd57ab7e9d7a244f62195d204162c50305abb128ffd68527fefe

Aliases

arxiv: 2508.20649 · arxiv_version: 2508.20649v1 · doi: 10.48550/arxiv.2508.20649 · pith_short_12: U73XMZ4LE3GV · pith_short_16: U73XMZ4LE3GVPK36 · pith_short_8: U73XMZ4L

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/U73XMZ4LE3GVPK36TV5CIT3CDF \
  | 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: a7f776678b26cd57ab7e9d7a244f62195d204162c50305abb128ffd68527fefe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bbec59b756d5eac2a59d59749321ffbe2f3f23346ddad88d6b978f440d59575",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-08-28T10:52:01Z",
    "title_canon_sha256": "43d3871f9146737680358c7129cbeac9f0f0347da8c520dd61252146cbe2087c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.20649",
    "kind": "arxiv",
    "version": 1
  }
}