Pith Number

pith:2BNH6HQ3

pith:2013:2BNH6HQ3LD257637X34AKAJPRB

not attested not anchored not stored refs pending

Nonlocal porous medium equation: Barenblatt profiles and other weak solutions

Cyril Imbert (CEREMADE), Grzegorz Karch, Piotr Biler

arxiv:1302.7219 v1 · 2013-02-28 · 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{2BNH6HQ3LD257637X34AKAJPRB}

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	2026-05-18T01:51:25.997970Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d05a7f1e1b58f5dffb7fbef805012f8848192fc203ef4dc5dee491a4bb0d6f35

Aliases

arxiv: 1302.7219 · arxiv_version: 1302.7219v1 · doi: 10.48550/arxiv.1302.7219 · pith_short_12: 2BNH6HQ3LD25 · pith_short_16: 2BNH6HQ3LD257637 · pith_short_8: 2BNH6HQ3

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/2BNH6HQ3LD257637X34AKAJPRB \
  | 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: d05a7f1e1b58f5dffb7fbef805012f8848192fc203ef4dc5dee491a4bb0d6f35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78806e25064d1a36d187d2bec8843ee70ace99a2b460e04e9abca1a68638ef67",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-02-28T14:59:25Z",
    "title_canon_sha256": "bf86897db849e45e1dac932dfea812b8bc8a39d8bececdaf2d635bda4c8f06dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.7219",
    "kind": "arxiv",
    "version": 1
  }
}