Pith Number

pith:JLZQUTPM

pith:2017:JLZQUTPM6KCWFQEBNZTHWFRFNC

not attested not anchored not stored refs pending

A free boundary problem for the Fisher-KPP equation with a given moving boundary

Hiroshi Matsuzawa

arxiv:1708.01995 v1 · 2017-08-07 · 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{JLZQUTPM6KCWFQEBNZTHWFRFNC}

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	2026-05-18T00:38:32.597778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4af30a4decf28562c0816e667b162568830ca51f88809a234985fcf8f5faf652

Aliases

arxiv: 1708.01995 · arxiv_version: 1708.01995v1 · doi: 10.48550/arxiv.1708.01995 · pith_short_12: JLZQUTPM6KCW · pith_short_16: JLZQUTPM6KCWFQEB · pith_short_8: JLZQUTPM

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/JLZQUTPM6KCWFQEBNZTHWFRFNC \
  | 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: 4af30a4decf28562c0816e667b162568830ca51f88809a234985fcf8f5faf652

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ca024738997f5b5607375c517aa52c8eca9c296e830dfa4f8538e2a7234635c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-08-07T05:49:45Z",
    "title_canon_sha256": "e544ffa9cf083ecf1313d12edc3e7f6aa667698db52bc71ea87b0e7ba7e28b2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.01995",
    "kind": "arxiv",
    "version": 1
  }
}