Pith Number

pith:SQWZA2C5

pith:2018:SQWZA2C5B4SYC2QTSRRFVNO6CZ

not attested not anchored not stored refs pending

Ancient low entropy flows, mean convex neighborhoods, and uniqueness

Kyeongsu Choi, Or Hershkovits, Robert Haslhofer

arxiv:1810.08467 v3 · 2018-10-19 · math.DG · 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{SQWZA2C5B4SYC2QTSRRFVNO6CZ}

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.

Cited by

1 paper in Pith

Codimension Bounds and Rigidity of Ancient Mean Curvature Flows by the Tangent Flow at $-\infty$

Receipt and verification

First computed	2026-07-05T03:09:41.992013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

942d90685d0f25816a1394625ab5de164b2db0abc78771a2c4c80966c753af42

Aliases

arxiv: 1810.08467 · arxiv_version: 1810.08467v3 · doi: 10.48550/arxiv.1810.08467 · pith_short_12: SQWZA2C5B4SY · pith_short_16: SQWZA2C5B4SYC2QT · pith_short_8: SQWZA2C5

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/SQWZA2C5B4SYC2QTSRRFVNO6CZ \
  | 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: 942d90685d0f25816a1394625ab5de164b2db0abc78771a2c4c80966c753af42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e18632b1a7e0d8b9a0d8d8fa257e5ba3a7da5b8cfb9e7f3f30e887a67f578a6",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-10-19T12:38:06Z",
    "title_canon_sha256": "784043fae9334242c6e92cbbcdf3cead523f6956364242f912731105cb1fde03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.08467",
    "kind": "arxiv",
    "version": 3
  }
}