Pith Number

pith:HEPTAL6I

pith:2013:HEPTAL6ID4QCNUTVRITOUB7YYG

not attested not anchored not stored refs pending

The interior regularity of the Calabi flow on a toric surface

Hongnian Huang, Li Sheng, Xiuxiong Chen

arxiv:1302.1627 v1 · 2013-02-07 · math.DG · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HEPTAL6ID4QCNUTVRITOUB7YYG}

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	2026-05-18T03:34:15.244670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

391f302fc81f2026d2758a26ea07f8c196bdace12396d0be94ae358543c4b7b3

Aliases

arxiv: 1302.1627 · arxiv_version: 1302.1627v1 · doi: 10.48550/arxiv.1302.1627 · pith_short_12: HEPTAL6ID4QC · pith_short_16: HEPTAL6ID4QCNUTV · pith_short_8: HEPTAL6I

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/HEPTAL6ID4QCNUTVRITOUB7YYG \
  | 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: 391f302fc81f2026d2758a26ea07f8c196bdace12396d0be94ae358543c4b7b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4db1099448e77667716e4b6639a9653c369737aaede11c47eec52f956612f30",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-02-07T01:59:48Z",
    "title_canon_sha256": "76c2fb754bfb329b96d79bbfde783c855e3f4613a1199d5cfd551e9586089962"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1627",
    "kind": "arxiv",
    "version": 1
  }
}