Pith Number

pith:UJHE4EZ4

pith:2022:UJHE4EZ4JACMUPQY4QXNXTLFGM

not attested not anchored not stored refs pending

A numerical stability analysis of mean curvature flow of noncompact hypersurfaces with Type-II curvature blowup: II

Dan Knopf, David Garfinkle, Haotian Wu, James Isenberg

arxiv:2206.01890 v1 · 2022-06-04 · math.DG · cs.NA · math.AP · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UJHE4EZ4JACMUPQY4QXNXTLFGM}

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	2026-07-05T04:28:57.262688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a24e4e133c4804ca3e18e42edbcd6533370dd26a0068f50db718316bdb543fa9

Aliases

arxiv: 2206.01890 · arxiv_version: 2206.01890v1 · doi: 10.48550/arxiv.2206.01890 · pith_short_12: UJHE4EZ4JACM · pith_short_16: UJHE4EZ4JACMUPQY · pith_short_8: UJHE4EZ4

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/UJHE4EZ4JACMUPQY4QXNXTLFGM \
  | 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: a24e4e133c4804ca3e18e42edbcd6533370dd26a0068f50db718316bdb543fa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0539cd919ba7eca777ffaff8aca610c6afe6cafa62951d9755ba5991d2093776",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AP",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2022-06-04T03:22:10Z",
    "title_canon_sha256": "63adbe1d8b352049885768ad801893626351506563d9a19d3393194b21be8dfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.01890",
    "kind": "arxiv",
    "version": 1
  }
}