Pith Number

pith:DQAN7IM5

pith:2008:DQAN7IM5JIXU7HGSBXH6V3TT2O

not attested not anchored not stored refs pending

Galilei-invariant equations for massive fields

A. G. Nikitin, J. Niederle

arxiv:0812.3021 v2 · 2008-12-16 · 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{DQAN7IM5JIXU7HGSBXH6V3TT2O}

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	2026-05-18T02:15:04.680053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c00dfa19d4a2f4f9cd20dcfeaee73d39ce68e1ed8f0b05e1d8a2c511f486c58

Aliases

arxiv: 0812.3021 · arxiv_version: 0812.3021v2 · doi: 10.48550/arxiv.0812.3021 · pith_short_12: DQAN7IM5JIXU · pith_short_16: DQAN7IM5JIXU7HGS · pith_short_8: DQAN7IM5

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/DQAN7IM5JIXU7HGSBXH6V3TT2O \
  | 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: 1c00dfa19d4a2f4f9cd20dcfeaee73d39ce68e1ed8f0b05e1d8a2c511f486c58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "475682051f2fc3698d6d39cc3cfcdd44213f98b4dc56e435324344b122b24f71",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2008-12-16T10:29:10Z",
    "title_canon_sha256": "072a48b0eaab96c1c7bafd8d78a8eeb4c095cdb78fe4ca3c996f72fa3706c73f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.3021",
    "kind": "arxiv",
    "version": 2
  }
}