Pith Number

pith:NSNLEH6T

pith:2013:NSNLEH6T6Y5BK2KVMRX5ONG46N

not attested not anchored not stored refs pending

Maximizing torsional rigidity on Riemannian manifolds

Andrea Loi, Lucio Cadeddu, Sylvestre Gallot

arxiv:1309.7796 v1 · 2013-09-30 · 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{NSNLEH6T6Y5BK2KVMRX5ONG46N}

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	2026-05-18T03:11:48.256276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c9ab21fd3f63a156955646fd734dcf3621e771a1cbf3329a2e2dcdb817dc90c

Aliases

arxiv: 1309.7796 · arxiv_version: 1309.7796v1 · doi: 10.48550/arxiv.1309.7796 · pith_short_12: NSNLEH6T6Y5B · pith_short_16: NSNLEH6T6Y5BK2KV · pith_short_8: NSNLEH6T

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/NSNLEH6T6Y5BK2KVMRX5ONG46N \
  | 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: 6c9ab21fd3f63a156955646fd734dcf3621e771a1cbf3329a2e2dcdb817dc90c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02b147f6c6449f31f49196db56aa0be14308137ac887bff297a633aeae522ef2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-09-30T11:08:47Z",
    "title_canon_sha256": "67dea15332cb4ff4e6f24bca1f7a7d62dd660329ce3b66ab2298e00a741cab86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7796",
    "kind": "arxiv",
    "version": 1
  }
}