Pith Number

pith:I24B2UVS

pith:2008:I24B2UVSPEPSW2JP4Z7QIAUWD3

not attested not anchored not stored refs pending

Special fast diffusion with slow asymptotics. Entropy method and flow on a Riemannian manifold

Gabriele Grillo, Juan Luis Vazquez, Matteo Bonforte

arxiv:0805.4750 v2 · 2008-05-30 · 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{I24B2UVSPEPSW2JP4Z7QIAUWD3}

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	2026-05-18T02:15:52.114209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46b81d52b2791f2b692fe67f0402961ed5f257e57912ed3f2a8cbab6df2de465

Aliases

arxiv: 0805.4750 · arxiv_version: 0805.4750v2 · doi: 10.48550/arxiv.0805.4750 · pith_short_12: I24B2UVSPEPS · pith_short_16: I24B2UVSPEPSW2JP · pith_short_8: I24B2UVS

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/I24B2UVSPEPSW2JP4Z7QIAUWD3 \
  | 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: 46b81d52b2791f2b692fe67f0402961ed5f257e57912ed3f2a8cbab6df2de465

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45aa7ed8a6aeec1496603df3b67f6598370cf53bcd4a4085858ec4861ebd6cf0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2008-05-30T13:16:01Z",
    "title_canon_sha256": "a9b6514cb7353f83bf1d333c3b3cb4e96447fd948146390487ccad73ce5bd568"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.4750",
    "kind": "arxiv",
    "version": 2
  }
}