Pith Number

pith:Z5HVTWFP

pith:2013:Z5HVTWFPO6NKPHAYOCATGX6SXO

not attested not anchored not stored refs pending

Curvature properties of 3-quasi-Sasakian manifolds

Antonio De Nicola, Beniamino Cappelletti Montano, Ivan Yudin

arxiv:1302.3650 v1 · 2013-02-14 · 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{Z5HVTWFPO6NKPHAYOCATGX6SXO}

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	2026-05-18T03:16:16.798832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf4f59d8af779aa79c187081335fd2bb8532939a129b5e7143406084938a0c5f

Aliases

arxiv: 1302.3650 · arxiv_version: 1302.3650v1 · doi: 10.48550/arxiv.1302.3650 · pith_short_12: Z5HVTWFPO6NK · pith_short_16: Z5HVTWFPO6NKPHAY · pith_short_8: Z5HVTWFP

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/Z5HVTWFPO6NKPHAYOCATGX6SXO \
  | 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: cf4f59d8af779aa79c187081335fd2bb8532939a129b5e7143406084938a0c5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b387174d8e397604ceb34e1e1aa007787942e92175b508203dadfe2c16308e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-02-14T23:49:04Z",
    "title_canon_sha256": "ebdc3c94ea9372db9b56e331c5bdd23a58bf6ecf1a2faf30d89d7b3fe1aa8b4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.3650",
    "kind": "arxiv",
    "version": 1
  }
}