Pith Number

pith:OSKA53IJ

pith:2014:OSKA53IJ4P3L3LZ7NYV6IKFPJU

not attested not anchored not stored refs pending

On the geodesic problem for the Dirichlet metric and the Ebin metric on the space of Sasakian metrics

David Petrecca, Kai Zheng, Simone Calamai

arxiv:1405.1211 v4 · 2014-05-06 · 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{OSKA53IJ4P3L3LZ7NYV6IKFPJU}

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	2026-05-18T01:03:37.144459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74940eed09e3f6bdaf3f6e2be428af4d27ab984a135ad7890281f3861b9179f5

Aliases

arxiv: 1405.1211 · arxiv_version: 1405.1211v4 · doi: 10.48550/arxiv.1405.1211 · pith_short_12: OSKA53IJ4P3L · pith_short_16: OSKA53IJ4P3L3LZ7 · pith_short_8: OSKA53IJ

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/OSKA53IJ4P3L3LZ7NYV6IKFPJU \
  | 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: 74940eed09e3f6bdaf3f6e2be428af4d27ab984a135ad7890281f3861b9179f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "155e457dd1a23c06a7375dc70fc06aefa1041029bab1c068b04c90192f9d0b28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-05-06T10:02:12Z",
    "title_canon_sha256": "4dff475aa1e5becc7dc7e4ff15be1a4cc68c1530346cfa7232da15a69f3f5b67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.1211",
    "kind": "arxiv",
    "version": 4
  }
}