Pith Number

pith:YW3ECQ7B

pith:2018:YW3ECQ7BDQNKN2JXOMOSRUAV7I

not attested not anchored not stored refs pending

The dynamics of a Fisher-KPP nonlocal diffusion model with free boundaries

Fang Li, Jiafeng Cao, Wantong Li, Yihong Du

arxiv:1805.04804 v2 · 2018-05-13 · 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{YW3ECQ7BDQNKN2JXOMOSRUAV7I}

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	2026-05-18T00:03:41.325371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5b64143e11c1aa6e937731d28d015fa1acafebb22b091e2ddd65bfd43919a05

Aliases

arxiv: 1805.04804 · arxiv_version: 1805.04804v2 · doi: 10.48550/arxiv.1805.04804 · pith_short_12: YW3ECQ7BDQNK · pith_short_16: YW3ECQ7BDQNKN2JX · pith_short_8: YW3ECQ7B

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/YW3ECQ7BDQNKN2JXOMOSRUAV7I \
  | 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: c5b64143e11c1aa6e937731d28d015fa1acafebb22b091e2ddd65bfd43919a05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46b60fb210c2ff539d866ac430b5fef40ecd971be19a00141b13363855be0a85",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-05-13T01:12:05Z",
    "title_canon_sha256": "0a7b8b1fac46057bcb4477ab1701c8c1ee2c2dcd15b8628c83c33dbf9e03e2c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04804",
    "kind": "arxiv",
    "version": 2
  }
}