Pith Number

pith:U55MTAXB

pith:2014:U55MTAXB43KYMG3FQRO7ZLU2YV

not attested not anchored not stored refs pending

Derivation of a Hele-Shaw type system from a cell model with active motion

Beno\^it Perthame, Fernando Quir\'os, Min Tang, Nicolas Vauchelet

arxiv:1401.2816 v1 · 2014-01-13 · 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{U55MTAXB43KYMG3FQRO7ZLU2YV}

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	2026-05-18T03:02:31.926008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a77ac982e1e6d5861b65845dfcae9ac56505681b9f7b4d5b59ac61a68163c1b6

Aliases

arxiv: 1401.2816 · arxiv_version: 1401.2816v1 · doi: 10.48550/arxiv.1401.2816 · pith_short_12: U55MTAXB43KY · pith_short_16: U55MTAXB43KYMG3F · pith_short_8: U55MTAXB

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/U55MTAXB43KYMG3FQRO7ZLU2YV \
  | 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: a77ac982e1e6d5861b65845dfcae9ac56505681b9f7b4d5b59ac61a68163c1b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "065a89f9a707428a1c439740acaf91ec86eeeeb29ec3842aa0f521d91f3bb700",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-01-13T12:37:28Z",
    "title_canon_sha256": "d06f08daee012d9da6aced2067f416cfd3b656d2d53295873fe36a4e12d67151"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2816",
    "kind": "arxiv",
    "version": 1
  }
}