Pith Number

pith:HBF6V4FD

pith:2013:HBF6V4FDJXHKIUDV3N7CJOTHSV

not attested not anchored not stored refs pending

Different Asymptotic Spreading Speeds Induced by Advection in a Diffusion Problem with Free Boundaries

Bendong Lou, Hong Gu, Zhigui Lin

arxiv:1302.6345 v1 · 2013-02-26 · 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{HBF6V4FDJXHKIUDV3N7CJOTHSV}

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	2026-05-18T03:32:29.562215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

384beaf0a34dcea45075db7e24ba67957fdc251a6a3fae40250ef80bea606f6e

Aliases

arxiv: 1302.6345 · arxiv_version: 1302.6345v1 · doi: 10.48550/arxiv.1302.6345 · pith_short_12: HBF6V4FDJXHK · pith_short_16: HBF6V4FDJXHKIUDV · pith_short_8: HBF6V4FD

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/HBF6V4FDJXHKIUDV3N7CJOTHSV \
  | 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: 384beaf0a34dcea45075db7e24ba67957fdc251a6a3fae40250ef80bea606f6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e6ae9782452f10826d644810d71e90ecf5254868c4e4d24c647c42a7816fcf3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-02-26T07:19:09Z",
    "title_canon_sha256": "4c21ff30dc808b8ed6a6609922cdaaa2b6da1ced2dc5440f31b486d66f836218"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.6345",
    "kind": "arxiv",
    "version": 1
  }
}