Pith Number

pith:X424TNCL

pith:2012:X424TNCLTUEOZVPXNLIL7PSEUR

not attested not anchored not stored refs pending

Variational Principles for Natural Divergence-free Tensors in Metric Field Theories

Ian M. Anderson, Juha Pohjanpelto

arxiv:1202.5811 v1 · 2012-02-27 · 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{X424TNCLTUEOZVPXNLIL7PSEUR}

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	2026-05-18T01:58:19.571420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf35c9b44b9d08ecd5f76ad0bfbe44a465c38e66a26e5a29b1d137ccfb5ae998

Aliases

arxiv: 1202.5811 · arxiv_version: 1202.5811v1 · doi: 10.48550/arxiv.1202.5811 · pith_short_12: X424TNCLTUEO · pith_short_16: X424TNCLTUEOZVPX · pith_short_8: X424TNCL

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/X424TNCLTUEOZVPXNLIL7PSEUR \
  | 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: bf35c9b44b9d08ecd5f76ad0bfbe44a465c38e66a26e5a29b1d137ccfb5ae998

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "198eae0c1c6990a54dca81b23dad10b7248311affffff9a8d019faad686657c8",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2012-02-27T01:23:08Z",
    "title_canon_sha256": "06ce1ff1f36da336f530328c32b853a3384d7434e5ddf99b82d3d9f26a6b0c32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.5811",
    "kind": "arxiv",
    "version": 1
  }
}