Pith Number

pith:7RMCYEBZ

pith:2014:7RMCYEBZCYRTPYQYCVYAMVTHWW

not attested not anchored not stored refs pending

Corroborating the equivalence between the Duffin-Kemmer-Petiau and the Klein-Gordon and Proca equations

A. S. de Castro, L. B. Castro

arxiv:1407.4401 v2 · 2014-07-16 · hep-th · math-ph · math.MP · quant-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{7RMCYEBZCYRTPYQYCVYAMVTHWW}

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	2026-05-18T02:26:38.929064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc582c1039162337e2181570065667b59a907ff616fddcda8968b6e75e06d4c4

Aliases

arxiv: 1407.4401 · arxiv_version: 1407.4401v2 · doi: 10.48550/arxiv.1407.4401 · pith_short_12: 7RMCYEBZCYRT · pith_short_16: 7RMCYEBZCYRTPYQY · pith_short_8: 7RMCYEBZ

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/7RMCYEBZCYRTPYQYCVYAMVTHWW \
  | 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: fc582c1039162337e2181570065667b59a907ff616fddcda8968b6e75e06d4c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3072789286ff2a4acb3e994b9d5d18bb94e7dfc8978c81a677cd99fde904bdf9",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2014-07-16T18:00:52Z",
    "title_canon_sha256": "3e1646b445228f825f796c8e5e642fb5a6bef0d3d2aa47b528d5e945406cd9ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.4401",
    "kind": "arxiv",
    "version": 2
  }
}