Pith Number

pith:WCAMPWQ2

pith:2009:WCAMPWQ2LUAQMSIU6YIAIKVYYT

not attested not anchored not stored refs pending

Mass conserved Allen-Cahn equation and volume preserving mean curvature flow

Danielle Hilhorst, Elisabeth Logak, Xinfu Chen

arxiv:0902.3625 v1 · 2009-02-20 · 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{WCAMPWQ2LUAQMSIU6YIAIKVYYT}

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	2026-05-18T00:47:53.930936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b080c7da1a5d01064914f610042ab8c4ec8b6947b06290dc3a136cc96aa9583e

Aliases

arxiv: 0902.3625 · arxiv_version: 0902.3625v1 · doi: 10.48550/arxiv.0902.3625 · pith_short_12: WCAMPWQ2LUAQ · pith_short_16: WCAMPWQ2LUAQMSIU · pith_short_8: WCAMPWQ2

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/WCAMPWQ2LUAQMSIU6YIAIKVYYT \
  | 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: b080c7da1a5d01064914f610042ab8c4ec8b6947b06290dc3a136cc96aa9583e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7ae52f936ed4b1f544d6dfaf3f8372383ee1f89b57b3aaa29af379233647631",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-02-20T17:27:01Z",
    "title_canon_sha256": "564c154e668fc76c49532643c019a479c12b704bc20560c9d47a7f3840340a3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.3625",
    "kind": "arxiv",
    "version": 1
  }
}