Pith Number

pith:FK3FBMAJ

pith:2003:FK3FBMAJNN7WQX7W6ICE5LP4AT

not attested not anchored not stored refs pending

The Casimir operator of a metric connection with skew-symmetric torsion

Ilka Agricola, Thomas Friedrich (Berlin)

arxiv:math/0305233 v2 · 2003-05-16 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FK3FBMAJNN7WQX7W6ICE5LP4AT}

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	2026-05-18T03:07:55.311569Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ab650b0096b7f685ff6f2044eadfc04c6b242421cf88fa34db3d1266d482775

Aliases

arxiv: math/0305233 · arxiv_version: math/0305233v2 · doi: 10.48550/arxiv.math/0305233 · pith_short_12: FK3FBMAJNN7W · pith_short_16: FK3FBMAJNN7WQX7W · pith_short_8: FK3FBMAJ

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/FK3FBMAJNN7WQX7W6ICE5LP4AT \
  | 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: 2ab650b0096b7f685ff6f2044eadfc04c6b242421cf88fa34db3d1266d482775

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b02ef215ed048f080064c551b688c71e7ea08d4407b1640717fa72d41bd9de03",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2003-05-16T07:37:12Z",
    "title_canon_sha256": "7ca852d5a1cdc17a6e147b1459a58767d70952ea354c0cf3ac8df3d238a60740"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0305233",
    "kind": "arxiv",
    "version": 2
  }
}