Pith Number

pith:ZEG5XAIZ

pith:2012:ZEG5XAIZWWAJHRFV27STECYBGZ

not attested not anchored not stored refs pending

Hele-Shaw flow in thin threads: A rigorous limit result

Bogdan-Vasile Matioc, Georg Prokert

arxiv:1207.3089 v1 · 2012-07-12 · 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{ZEG5XAIZWWAJHRFV27STECYBGZ}

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	2026-05-18T03:51:12.462678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c90ddb8119b58093c4b5d7e5320b01364eedaa91cff107a6c01afafb60a2519b

Aliases

arxiv: 1207.3089 · arxiv_version: 1207.3089v1 · doi: 10.48550/arxiv.1207.3089 · pith_short_12: ZEG5XAIZWWAJ · pith_short_16: ZEG5XAIZWWAJHRFV · pith_short_8: ZEG5XAIZ

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/ZEG5XAIZWWAJHRFV27STECYBGZ \
  | 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: c90ddb8119b58093c4b5d7e5320b01364eedaa91cff107a6c01afafb60a2519b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eaa327901d170c8c8462bc7255b342470535ef8692d68c69964a97d5afcfe1e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-07-12T20:02:48Z",
    "title_canon_sha256": "253a2f50434a406aae71038a6edb73809ad607b3108d5a5185ebc65b8e66a8b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3089",
    "kind": "arxiv",
    "version": 1
  }
}