Pith Number

pith:O5VXDXVM

pith:2013:O5VXDXVMN73WLBFOHNPJ6H2ZJD

not attested not anchored not stored refs pending

An extension of the Wright's 3/2-theorem for the KPP-Fisher delayed equation

Karel Hasik, Sergei Trofimchuk

arxiv:1302.1132 v1 · 2013-02-05 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O5VXDXVMN73WLBFOHNPJ6H2ZJD}

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	2026-05-18T02:17:52.495309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

776b71deac6ff76584ae3b5e9f1f5948f4a468c9be0f2a2a322ab5b61250b5d1

Aliases

arxiv: 1302.1132 · arxiv_version: 1302.1132v1 · doi: 10.48550/arxiv.1302.1132 · pith_short_12: O5VXDXVMN73W · pith_short_16: O5VXDXVMN73WLBFO · pith_short_8: O5VXDXVM

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/O5VXDXVMN73WLBFOHNPJ6H2ZJD \
  | 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: 776b71deac6ff76584ae3b5e9f1f5948f4a468c9be0f2a2a322ab5b61250b5d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9996613348f36b6b4e4f27749953b4e69f087ab9af3c58e524c09978a99dbb9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2013-02-05T17:52:04Z",
    "title_canon_sha256": "d2fb438cb5ae2b3f085971e7e7a1e2ae7cc478a4682da03b956b128b51e1c587"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1132",
    "kind": "arxiv",
    "version": 1
  }
}