Pith Number

pith:FRKQVIJP

pith:2012:FRKQVIJPJYFKWQE3S7DDVL4Q4U

not attested not anchored not stored refs pending

The Stability of Steady-State Hot-Spot Patterns for a Reaction-Diffusion Model of Urban Crime

Juncheng Wei, Michael Ward, Theodore Kolokolnikov

arxiv:1201.3090 v1 · 2012-01-15 · nlin.PS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FRKQVIJPJYFKWQE3S7DDVL4Q4U}

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	2026-05-18T04:04:32.258508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c550aa12f4e0aab409b97c63aaf90e512ac514c868b1135315f30535e7e0b85

Aliases

arxiv: 1201.3090 · arxiv_version: 1201.3090v1 · doi: 10.48550/arxiv.1201.3090 · pith_short_12: FRKQVIJPJYFK · pith_short_16: FRKQVIJPJYFKWQE3 · pith_short_8: FRKQVIJP

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/FRKQVIJPJYFKWQE3S7DDVL4Q4U \
  | 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: 2c550aa12f4e0aab409b97c63aaf90e512ac514c868b1135315f30535e7e0b85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74247e6a6783277f3c0da65dc76d924a34a4308c71da1437249da4c30874373d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.PS",
    "submitted_at": "2012-01-15T14:22:43Z",
    "title_canon_sha256": "11f915cd38e08d20a77fdf89ef2e72bd6867e9fb3675753e615adc896d63a594"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3090",
    "kind": "arxiv",
    "version": 1
  }
}