Pith Number

pith:EFTH2CHO

pith:2017:EFTH2CHOZNZPEC7HGDFWKBTCKB

not attested not anchored not stored refs pending

Hamilton-Jacobi formalism for Podolsky's electromagnetic theory on the null-plane

B. M. Pimentel, C. E. Valc\'arcel, G. E. R. Zambrano, M. C. Bertin

arxiv:1702.03914 v1 · 2017-02-13 · hep-th · 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{EFTH2CHOZNZPEC7HGDFWKBTCKB}

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	2026-05-18T00:35:23.618708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21667d08eecb72f20be730cb6506625056fe887c453f285c3a834c636677dcda

Aliases

arxiv: 1702.03914 · arxiv_version: 1702.03914v1 · doi: 10.48550/arxiv.1702.03914 · pith_short_12: EFTH2CHOZNZP · pith_short_16: EFTH2CHOZNZPEC7H · pith_short_8: EFTH2CHO

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/EFTH2CHOZNZPEC7HGDFWKBTCKB \
  | 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: 21667d08eecb72f20be730cb6506625056fe887c453f285c3a834c636677dcda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0525324656f9e2ef2651a5e9720e76b234f9a90e3fbeaeacdcf315cf8110fc38",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2017-02-13T18:35:28Z",
    "title_canon_sha256": "2aed9d0fc877762adb3dca484ede0eb5936623a538b84bb925ea1b6c94e77331"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03914",
    "kind": "arxiv",
    "version": 1
  }
}