Pith Number

pith:TPPR67RD

pith:2012:TPPR67RDBNHMBVYZ5DKW6RDNYH

not attested not anchored not stored refs pending

The Hele-Shaw flow and moduli of holomorphic discs

David Witt Nystrom, Julius Ross

arxiv:1212.2337 v2 · 2012-12-11 · math.CV · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TPPR67RDBNHMBVYZ5DKW6RDNYH}

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	2026-05-18T01:34:51.288085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bdf1f7e230b4ec0d719e8d56f446dc1ec2fe18c87f3cd52a6f80d0233cbafa1

Aliases

arxiv: 1212.2337 · arxiv_version: 1212.2337v2 · doi: 10.48550/arxiv.1212.2337 · pith_short_12: TPPR67RDBNHM · pith_short_16: TPPR67RDBNHMBVYZ · pith_short_8: TPPR67RD

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/TPPR67RDBNHMBVYZ5DKW6RDNYH \
  | 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: 9bdf1f7e230b4ec0d719e8d56f446dc1ec2fe18c87f3cd52a6f80d0233cbafa1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b19d208dced237fb1db41e7ed591dc626522e4923b1e68fa7dafdb505a09cb50",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2012-12-11T09:02:03Z",
    "title_canon_sha256": "3e257f0ed297b353bc773ec2be4d934d7439a469e0e9c5f4b74410185bd9301a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2337",
    "kind": "arxiv",
    "version": 2
  }
}