Pith Number

pith:MYPR2ER6

pith:2005:MYPR2ER6QQ33CKWOZVO7ZQYXRA

not attested not anchored not stored refs pending

A new Li-Yau-Hamilton estimate for Kahler-Ricci flow

Lei Ni

arxiv:math/0502495 v2 · 2005-02-23 · 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{MYPR2ER6QQ33CKWOZVO7ZQYXRA}

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	2026-05-18T01:05:23.726935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

661f1d123e8437b12acecd5dfcc3178818da21ba4d2b983bcf7cee70aa590b0d

Aliases

arxiv: math/0502495 · arxiv_version: math/0502495v2 · doi: 10.48550/arxiv.math/0502495 · pith_short_12: MYPR2ER6QQ33 · pith_short_16: MYPR2ER6QQ33CKWO · pith_short_8: MYPR2ER6

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/MYPR2ER6QQ33CKWOZVO7ZQYXRA \
  | 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: 661f1d123e8437b12acecd5dfcc3178818da21ba4d2b983bcf7cee70aa590b0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8841a7b8d0ac0211b974409e0c02cb51b2a041314fae63815b30c9099ed46382",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2005-02-23T21:24:54Z",
    "title_canon_sha256": "bf7a4e27e83a69c239dbdfaf4de9054b2aff57ae590435da59966dab79a3b38e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0502495",
    "kind": "arxiv",
    "version": 2
  }
}