Pith Number

pith:QNAP2UVE

pith:2018:QNAP2UVE6YBGDLT5WBNG5EPK5Y

not attested not anchored not stored refs pending

From a cell model with active motion to a Hele-Shaw-like system. A numerical approach

Francisco Guill\'en-Gonz\'alez, Juan Vicente Guti\'errez-Santacreu

arxiv:1805.07658 v1 · 2018-05-19 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QNAP2UVE6YBGDLT5WBNG5EPK5Y}

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	2026-05-18T00:15:32.894805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8340fd52a4f60261ae7db05a6e91eaee1865ea3a02adce35adb1cf872311bc60

Aliases

arxiv: 1805.07658 · arxiv_version: 1805.07658v1 · doi: 10.48550/arxiv.1805.07658 · pith_short_12: QNAP2UVE6YBG · pith_short_16: QNAP2UVE6YBGDLT5 · pith_short_8: QNAP2UVE

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/QNAP2UVE6YBGDLT5WBNG5EPK5Y \
  | 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: 8340fd52a4f60261ae7db05a6e91eaee1865ea3a02adce35adb1cf872311bc60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2bea99b16b69f5d21e681bf872109c8b01f0dfc4e7b648ee26ac06d0c3e8d57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-05-19T21:36:03Z",
    "title_canon_sha256": "fbe1ed65c839c872154df940ae55334566ee59b6ea7a5cbc4854c38c2793ea3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07658",
    "kind": "arxiv",
    "version": 1
  }
}