Pith Number

pith:R4CUTZ4E

pith:2019:R4CUTZ4EJQZK477Y3H64CRS3NR

not attested not anchored not stored refs pending

On a systolic inequality for closed magnetic geodesics on surfaces

Gabriele Benedetti, Jungsoo Kang

arxiv:1902.01262 v2 · 2019-02-04 · math.SG · 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{R4CUTZ4EJQZK477Y3H64CRS3NR}

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	2026-05-17T23:54:38.660045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f0549e7844c32ae7ff8d9fdc1465b6c7fa0ba999ecdc350cd0d3c8596c8cd3d

Aliases

arxiv: 1902.01262 · arxiv_version: 1902.01262v2 · doi: 10.48550/arxiv.1902.01262 · pith_short_12: R4CUTZ4EJQZK · pith_short_16: R4CUTZ4EJQZK477Y · pith_short_8: R4CUTZ4E

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/R4CUTZ4EJQZK477Y3H64CRS3NR \
  | 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: 8f0549e7844c32ae7ff8d9fdc1465b6c7fa0ba999ecdc350cd0d3c8596c8cd3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a411f2b97a197bc92c75eb45d24aede1e8866f04ab5709ca1549cc0bdc86d4ad",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2019-02-04T15:47:02Z",
    "title_canon_sha256": "6bb15c57ce36a367edded2542d51a258b97cdffad1afe65f7c9e5228e2ef9f52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01262",
    "kind": "arxiv",
    "version": 2
  }
}