Pith Number

pith:XRVKTEIA

pith:2014:XRVKTEIAMV3ORBEMLEC3MOLHZZ

not attested not anchored not stored refs pending

A diffusive logistic problem with a free boundary in time-periodic environment: favorable habitat or unfavorable habitat

Fengquan Li, Feng Wang, Qiaoling Chen

arxiv:1412.0117 v2 · 2014-11-29 · 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{XRVKTEIAMV3ORBEMLEC3MOLHZZ}

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	2026-05-18T02:31:58.918803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc6aa991006576e8848c5905b63967ce6b4cf4b9563c0092a37ceeea126cd548

Aliases

arxiv: 1412.0117 · arxiv_version: 1412.0117v2 · doi: 10.48550/arxiv.1412.0117 · pith_short_12: XRVKTEIAMV3O · pith_short_16: XRVKTEIAMV3ORBEM · pith_short_8: XRVKTEIA

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/XRVKTEIAMV3ORBEMLEC3MOLHZZ \
  | 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: bc6aa991006576e8848c5905b63967ce6b4cf4b9563c0092a37ceeea126cd548

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e2dbad1451066d16d0b060e497a6813881c7e2849583b2a48e570457cdd6e37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-11-29T15:20:19Z",
    "title_canon_sha256": "545da2bb2be34df9fb97ffc8f3cd9bd138ef5f1dee0e83644f8695905ee49e52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.0117",
    "kind": "arxiv",
    "version": 2
  }
}