Pith Number

pith:3BGCR72R

pith:2017:3BGCR72RFBTCSCMCOZA2JACGPT

not attested not anchored not stored refs pending

A free boundary problem for a class of nonlinear nonautonomous size-structured population model

Shaohua Wu, Wenbin Lv

arxiv:1711.03339 v1 · 2017-11-09 · 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{3BGCR72RFBTCSCMCOZA2JACGPT}

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	2026-05-18T00:30:56.493629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d84c28ff5128662909827641a480467cd4ae0acbf369aeec4d6432f4f2a3650f

Aliases

arxiv: 1711.03339 · arxiv_version: 1711.03339v1 · doi: 10.48550/arxiv.1711.03339 · pith_short_12: 3BGCR72RFBTC · pith_short_16: 3BGCR72RFBTCSCMC · pith_short_8: 3BGCR72R

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/3BGCR72RFBTCSCMCOZA2JACGPT \
  | 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: d84c28ff5128662909827641a480467cd4ae0acbf369aeec4d6432f4f2a3650f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a41df61abaf90e5edeeda54e7cd160109310e26eab26ca59f45451b5aca33d41",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-11-09T11:52:22Z",
    "title_canon_sha256": "c90b14a0437bc4632997ef654a9348afc11ce218c1e79e34f24e9e93044979b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.03339",
    "kind": "arxiv",
    "version": 1
  }
}