Pith Number

pith:MLL62GLJ

pith:2014:MLL62GLJG6BN5UUMEXGGGZQRGR

not attested not anchored not stored refs pending

The force density and the kinetic energy-momentum tensor of electromagnetic fields in matter

J. Stephany, Rodrigo Medina

arxiv:1404.5250 v2 · 2014-03-30 · physics.class-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{MLL62GLJG6BN5UUMEXGGGZQRGR}

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	2026-05-18T00:30:29.044640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62d7ed19693782ded28c25cc636611345b85c6a21f5c7b9a852e08a93e94d3bd

Aliases

arxiv: 1404.5250 · arxiv_version: 1404.5250v2 · doi: 10.48550/arxiv.1404.5250 · pith_short_12: MLL62GLJG6BN · pith_short_16: MLL62GLJG6BN5UUM · pith_short_8: MLL62GLJ

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/MLL62GLJG6BN5UUMEXGGGZQRGR \
  | 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: 62d7ed19693782ded28c25cc636611345b85c6a21f5c7b9a852e08a93e94d3bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70985622fa8ad6e514b39fb30a5feb37e241dea63c420cd24f5fb91440fb96b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2014-03-30T05:28:50Z",
    "title_canon_sha256": "3d2b35ba3bc7c2b46fe88fed29c807cd3a5f462197fce82da54fe94d60dc8896"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.5250",
    "kind": "arxiv",
    "version": 2
  }
}