Pith Number

pith:YJUIH6PR

pith:2014:YJUIH6PRZNLI2AIUT5Y7BIZDKI

not attested not anchored not stored refs pending

Real affine varieties of nonnegative curvature

Xiaoyang Chen

arxiv:1409.4023 v2 · 2014-09-14 · 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{YJUIH6PRZNLI2AIUT5Y7BIZDKI}

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	2026-05-18T02:39:25.256872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c26883f9f1cb568d01149f71f0a3235205b287eb172dd2708a81c6c4f65fb020

Aliases

arxiv: 1409.4023 · arxiv_version: 1409.4023v2 · doi: 10.48550/arxiv.1409.4023 · pith_short_12: YJUIH6PRZNLI · pith_short_16: YJUIH6PRZNLI2AIU · pith_short_8: YJUIH6PR

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/YJUIH6PRZNLI2AIUT5Y7BIZDKI \
  | 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: c26883f9f1cb568d01149f71f0a3235205b287eb172dd2708a81c6c4f65fb020

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f67ee66b065f447b3c98db689e99e111f81669348f7477f0d33e180d18c603cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-09-14T07:24:45Z",
    "title_canon_sha256": "cbec77c2ed8a7588511c12f26af16458467d406daf701f8ad13bc388c4efb32d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.4023",
    "kind": "arxiv",
    "version": 2
  }
}