Pith Number

pith:QOWEGHFU

pith:2015:QOWEGHFUM4GOAMUXGAKHFVWSFC

not attested not anchored not stored refs pending

A New Version of Huisken's Convergence Theorem for Mean Curvature Flow in Spheres

Hongwei Xu, Li Lei

arxiv:1505.07217 v2 · 2015-05-27 · 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{QOWEGHFUM4GOAMUXGAKHFVWSFC}

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	2026-05-18T01:49:55.503711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83ac431cb4670ce03297301472d6d228b48bff146844c63ddd5a79e45e33e304

Aliases

arxiv: 1505.07217 · arxiv_version: 1505.07217v2 · doi: 10.48550/arxiv.1505.07217 · pith_short_12: QOWEGHFUM4GO · pith_short_16: QOWEGHFUM4GOAMUX · pith_short_8: QOWEGHFU

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/QOWEGHFUM4GOAMUXGAKHFVWSFC \
  | 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: 83ac431cb4670ce03297301472d6d228b48bff146844c63ddd5a79e45e33e304

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f590bd0b87ca3a42c64a51a464e9e94fb2a26fc93ec6680555b96d5473b1ed81",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-05-27T08:27:29Z",
    "title_canon_sha256": "9db1a6a56f327be4ec116bb5c25dc4ff45b82239999b19e0ece116ad6086ecb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07217",
    "kind": "arxiv",
    "version": 2
  }
}