Pith Number

pith:H7AJCQTF

pith:2013:H7AJCQTFMWUJ5BKXPTSFR44E3Z

not attested not anchored not stored refs pending

A Gauss-Bonnet Type Formula on Riemann-Finsler surfaces with non-constant indicatrix volume

H. Shimada, J. Itoh, S.V. Sabau

arxiv:1305.2695 v1 · 2013-05-13 · 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{H7AJCQTFMWUJ5BKXPTSFR44E3Z}

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	2026-05-18T00:23:02.339592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fc091426565a89e85577ce458f384de511cfda7aff3550ae7b19111965562e4

Aliases

arxiv: 1305.2695 · arxiv_version: 1305.2695v1 · doi: 10.48550/arxiv.1305.2695 · pith_short_12: H7AJCQTFMWUJ · pith_short_16: H7AJCQTFMWUJ5BKX · pith_short_8: H7AJCQTF

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/H7AJCQTFMWUJ5BKXPTSFR44E3Z \
  | 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: 3fc091426565a89e85577ce458f384de511cfda7aff3550ae7b19111965562e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79718657959c95656781fa68ee6d501d92988094815347af140e1242f024ded9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-05-13T07:43:40Z",
    "title_canon_sha256": "ba64d507b5c32d2c64717378e8d73b7544feec9e2a056e354d7f23f92d853f85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2695",
    "kind": "arxiv",
    "version": 1
  }
}