Pith Number

pith:DRA4LUPS

pith:2011:DRA4LUPSWYFQ7VVUF6VEBGATN2

not attested not anchored not stored refs pending

A Note on a Nonlocal Nonlinear Reaction-Diffusion Model

Christoph Walker

arxiv:1101.3879 v1 · 2011-01-20 · 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{DRA4LUPSWYFQ7VVUF6VEBGATN2}

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	2026-05-18T04:31:20.898610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c41c5d1f2b60b0fd6b42faa4098136ea9d0c1fa80c22ee64520cd85b682967e

Aliases

arxiv: 1101.3879 · arxiv_version: 1101.3879v1 · doi: 10.48550/arxiv.1101.3879 · pith_short_12: DRA4LUPSWYFQ · pith_short_16: DRA4LUPSWYFQ7VVU · pith_short_8: DRA4LUPS

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/DRA4LUPSWYFQ7VVUF6VEBGATN2 \
  | 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: 1c41c5d1f2b60b0fd6b42faa4098136ea9d0c1fa80c22ee64520cd85b682967e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13edf3f951eb6a524ba57154477d7a213b279a7150dfa0cb347aa2fde8fc57ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-01-20T12:14:28Z",
    "title_canon_sha256": "4179229967f3dc144e4fa0bf0506ffe2762ef5ee950c6043e9afcdb943e173d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.3879",
    "kind": "arxiv",
    "version": 1
  }
}