Pith Number

pith:XSMBTR4W

pith:2013:XSMBTR4WMWR7ODYVUY4EW53DFN

not attested not anchored not stored refs pending

Collapsing of the Chern-Ricci flow on elliptic surfaces

Ben Weinkove, Valentino Tosatti, Xiaokui Yang

arxiv:1302.6545 v2 · 2013-02-26 · 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{XSMBTR4WMWR7ODYVUY4EW53DFN}

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	2026-05-18T01:36:26.076039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc9819c79665a3f70f15a6384b77632b63502d9ddb4d39dee4239c03ab00692c

Aliases

arxiv: 1302.6545 · arxiv_version: 1302.6545v2 · doi: 10.48550/arxiv.1302.6545 · pith_short_12: XSMBTR4WMWR7 · pith_short_16: XSMBTR4WMWR7ODYV · pith_short_8: XSMBTR4W

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/XSMBTR4WMWR7ODYVUY4EW53DFN \
  | 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: bc9819c79665a3f70f15a6384b77632b63502d9ddb4d39dee4239c03ab00692c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85928da590af192d50cb97f441de3b49e7cb1c0912a28a261b6cd7593f29958a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-02-26T19:18:34Z",
    "title_canon_sha256": "7de9da69eccb40f64de6e5c812ac0ae1e6a8865fc08a7ac83782d237ca4cef10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.6545",
    "kind": "arxiv",
    "version": 2
  }
}