Pith Number

pith:HHNAIMBE

pith:2013:HHNAIMBE3PVR2O66J5BSE4PYWO

not attested not anchored not stored refs pending

Finite and infinite speed of propagation for porous medium equations with fractional pressure

Diana Stan, F\'elix del Teso, Juan Luis V\'azquez

arxiv:1311.7007 v1 · 2013-11-27 · 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{HHNAIMBE3PVR2O66J5BSE4PYWO}

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	2026-05-18T03:06:04.356920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39da043024dbeb1d3bde4f432271f8b3b838492ad9197a34415f62a487a4b369

Aliases

arxiv: 1311.7007 · arxiv_version: 1311.7007v1 · doi: 10.48550/arxiv.1311.7007 · pith_short_12: HHNAIMBE3PVR · pith_short_16: HHNAIMBE3PVR2O66 · pith_short_8: HHNAIMBE

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/HHNAIMBE3PVR2O66J5BSE4PYWO \
  | 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: 39da043024dbeb1d3bde4f432271f8b3b838492ad9197a34415f62a487a4b369

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b890fdb2849ce11851e9f288e8b8e0f4c5af3dd89df8d24e6c611e26c2cef02",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-11-27T15:31:36Z",
    "title_canon_sha256": "d090bca4bf513ecb07146624adab2afc84491ff3ac21d48dd03e6617311e3876"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.7007",
    "kind": "arxiv",
    "version": 1
  }
}