Pith Number

pith:UVUWEX6O

pith:1999:UVUWEX6OHZESZUPHXVLAKMKJTZ

not attested not anchored not stored refs pending

On Equivalence of Duffin-Kemmer-Petiau and Klein-Gordon Equations

B. M. Pimentel (Sao Paulo, IFT), V. Ya. Fainberg

arxiv:hep-th/9911219 v1 · 1999-11-26 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UVUWEX6OHZESZUPHXVLAKMKJTZ}

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	2026-05-18T04:24:15.261176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a569625fce3e492cd1e7bd560531499e5834acb560e7e03d733a58fba28af9f6

Aliases

arxiv: hep-th/9911219 · arxiv_version: hep-th/9911219v1 · doi: 10.48550/arxiv.hep-th/9911219 · pith_short_12: UVUWEX6OHZES · pith_short_16: UVUWEX6OHZESZUPH · pith_short_8: UVUWEX6O

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/UVUWEX6OHZESZUPHXVLAKMKJTZ \
  | 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: a569625fce3e492cd1e7bd560531499e5834acb560e7e03d733a58fba28af9f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c339a3996c45173c0f6b0e151f63cc70dd2106aabfa947fd47767e2872d2f71",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1999-11-26T17:11:54Z",
    "title_canon_sha256": "6ce5cc85e97bd9d14bb4c18828a29dc036235b37b24e882d7a5a277d1fc8c83b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9911219",
    "kind": "arxiv",
    "version": 1
  }
}