Pith Number

pith:BIXDF5DV

pith:2018:BIXDF5DVAWIZAW2KY533G4ETZS

not attested not anchored not stored refs pending

Free open reference implementation of a two-phase PEM fuel cell model

J\"urgen O. Schumacher, Roman Vetter

arxiv:1811.09811 v1 · 2018-11-24 · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BIXDF5DVAWIZAW2KY533G4ETZS}

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	2026-05-18T00:00:01.153857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a2e32f4750591905b4ac777b37093cc83e340287c5aef80809f720da2926d1b

Aliases

arxiv: 1811.09811 · arxiv_version: 1811.09811v1 · doi: 10.48550/arxiv.1811.09811 · pith_short_12: BIXDF5DVAWIZ · pith_short_16: BIXDF5DVAWIZAW2K · pith_short_8: BIXDF5DV

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/BIXDF5DVAWIZAW2KY533G4ETZS \
  | 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: 0a2e32f4750591905b4ac777b37093cc83e340287c5aef80809f720da2926d1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b34836cb0d99fff8fc16818dce831bcda3e975bae12a9be42bad2a2da378979",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2018-11-24T10:55:44Z",
    "title_canon_sha256": "7c42b59d9b9307e365083f1ae3a1e4b810a4190302735dda044ea04e1524f52b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09811",
    "kind": "arxiv",
    "version": 1
  }
}