Pith Number

pith:TY33PYSI

pith:2013:TY33PYSILDN5NWJJQL7IP2ET62

not attested not anchored not stored refs pending

Homogenization of Degenerate Porous Medium Type Equations in Ergodic Algebras

Hermano Frid, Jean Silva

arxiv:1305.2185 v1 · 2013-05-09 · 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{TY33PYSILDN5NWJJQL7IP2ET62}

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	2026-05-18T03:26:09.154335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e37b7e24858dbd6d92982fe87e893f6b4a8cd6493d65a2a81e839a7c9584eeb

Aliases

arxiv: 1305.2185 · arxiv_version: 1305.2185v1 · doi: 10.48550/arxiv.1305.2185 · pith_short_12: TY33PYSILDN5 · pith_short_16: TY33PYSILDN5NWJJ · pith_short_8: TY33PYSI

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/TY33PYSILDN5NWJJQL7IP2ET62 \
  | 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: 9e37b7e24858dbd6d92982fe87e893f6b4a8cd6493d65a2a81e839a7c9584eeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5c5897c45392e32785f5e0aa2ed6698224b6585c7b3340faf78596266821a15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-05-09T19:17:54Z",
    "title_canon_sha256": "e14d99ffb17957d1a9574683db881c455a123837672271e31f459111690e0ac1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2185",
    "kind": "arxiv",
    "version": 1
  }
}