Pith Number

pith:GRUN22NH

pith:2025:GRUN22NH3SOIAP25QVUQWVRDGA

not attested not anchored not stored refs pending

Physics-based machine learning framework for predicting NOx emissions from compression ignition engines using on-board diagnostics data

Bharat Jayaprakash, Harish Panneer Selvam, Shashi Shekhar, William F. Northrop, Yan Li

arxiv:2503.05648 v1 · 2025-03-07 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GRUN22NH3SOIAP25QVUQWVRDGA}

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	2026-07-05T10:26:33.762084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3468dd69a7dc9c803f5d85690b562330062a93c1eb3e3d6f623b2abfd284251b

Aliases

arxiv: 2503.05648 · arxiv_version: 2503.05648v1 · doi: 10.48550/arxiv.2503.05648 · pith_short_12: GRUN22NH3SOI · pith_short_16: GRUN22NH3SOIAP25 · pith_short_8: GRUN22NH

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/GRUN22NH3SOIAP25QVUQWVRDGA \
  | 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: 3468dd69a7dc9c803f5d85690b562330062a93c1eb3e3d6f623b2abfd284251b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "212a942c9eb3fbdbf93504a30f5d0eb3f3975aced9d7a458abd01b5c9715e393",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-03-07T18:11:23Z",
    "title_canon_sha256": "e7271af671ea7b8ab41f415befcd5147054e3c7ac4c40a7ded82aa9c82252725"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.05648",
    "kind": "arxiv",
    "version": 1
  }
}