Pith Number

pith:4JKHNGUC

pith:2003:4JKHNGUCSYELBCECYJDX2PMDMN

not attested not anchored not stored refs pending

The heat kernel expansion for the electromagnetic field in a cavity

D. Hasler, F. Bernasconi, G.M. Graf

arxiv:math-ph/0302035 v1 · 2003-02-13 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4JKHNGUCSYELBCECYJDX2PMDMN}

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	2026-05-18T01:38:33.912141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e254769a829608b08882c2477d3d83634a60dc392527339e0b4e65df2342f0f7

Aliases

arxiv: math-ph/0302035 · arxiv_version: math-ph/0302035v1 · doi: 10.48550/arxiv.math-ph/0302035 · pith_short_12: 4JKHNGUCSYEL · pith_short_16: 4JKHNGUCSYELBCEC · pith_short_8: 4JKHNGUC

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/4JKHNGUCSYELBCECYJDX2PMDMN \
  | 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: e254769a829608b08882c2477d3d83634a60dc392527339e0b4e65df2342f0f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28e14c7f7c02d350c282dbf8b28e1de89a26cff63c3e72459b6ef6dcd5620f84",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "",
    "primary_cat": "math-ph",
    "submitted_at": "2003-02-13T15:59:05Z",
    "title_canon_sha256": "a6ab3810ba46509bbadc5c90baacd213721d5ceccab08c641c28da4594132cd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math-ph/0302035",
    "kind": "arxiv",
    "version": 1
  }
}