Pith Number

pith:MM7BYJEX

pith:2019:MM7BYJEX6ETBAA7TLC6VDWF4MN

not attested not anchored not stored refs pending

A bulk-surface reaction-diffusion system for cell polarization

Barbara Niethammer, Juan J. L. Vel\'azquez, Matthias R\"oger

arxiv:1902.05842 v1 · 2019-02-15 · 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{MM7BYJEX6ETBAA7TLC6VDWF4MN}

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	2026-05-17T23:53:55.326535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

633e1c2497f1261003f358bd51d8bc636032d52195b2e939614781fc72e60ba3

Aliases

arxiv: 1902.05842 · arxiv_version: 1902.05842v1 · doi: 10.48550/arxiv.1902.05842 · pith_short_12: MM7BYJEX6ETB · pith_short_16: MM7BYJEX6ETBAA7T · pith_short_8: MM7BYJEX

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/MM7BYJEX6ETBAA7TLC6VDWF4MN \
  | 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: 633e1c2497f1261003f358bd51d8bc636032d52195b2e939614781fc72e60ba3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53727511e8e8098f8dcf504301e4b793d745f9ce55d67db85dd7e84b940bf86a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-02-15T15:21:08Z",
    "title_canon_sha256": "099185f19eed33bb4497ed9191caddce7082a314122eae76113d85815b3642fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05842",
    "kind": "arxiv",
    "version": 1
  }
}