Pith Number

pith:T4IQ6F7Y

pith:2015:T4IQ6F7YSPDDN3J6QFGWZFBWVR

not attested not anchored not stored refs pending

Hamiltonian dynamics of the parametrized electromagnetic field

Eduardo J.S. Villase\~nor, J. Fernando Barbero, Juan Margalef-Bentabol

arxiv:1511.00826 v1 · 2015-11-03 · hep-th · gr-qc · 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{T4IQ6F7YSPDDN3J6QFGWZFBWVR}

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	2026-05-18T00:48:05.825595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f110f17f893c636ed3e814d6c9436ac58b8b5c46185a6bd24cedfd7ddcc3545

Aliases

arxiv: 1511.00826 · arxiv_version: 1511.00826v1 · doi: 10.48550/arxiv.1511.00826 · pith_short_12: T4IQ6F7YSPDD · pith_short_16: T4IQ6F7YSPDDN3J6 · pith_short_8: T4IQ6F7Y

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/T4IQ6F7YSPDDN3J6QFGWZFBWVR \
  | 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: 9f110f17f893c636ed3e814d6c9436ac58b8b5c46185a6bd24cedfd7ddcc3545

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "451f338c87db96999992820509e1d1f1e5edaead43c392559b7ef9147e1411e1",
    "cross_cats_sorted": [
      "gr-qc",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-11-03T09:23:22Z",
    "title_canon_sha256": "d233fdf5b6ba37a999263aab553f3941c47de36b7a90966cf265a50c17e294b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.00826",
    "kind": "arxiv",
    "version": 1
  }
}