Pith Number

pith:KXCACP4B

pith:2013:KXCACP4BUOTFZRJRFHIGLUTVH3

not attested not anchored not stored refs pending

Local solvability and turning for the inhomogeneous Muskat problem

Diego Cordoba, Luigi Berselli, Rafael Granero-Belinchon

arxiv:1311.2194 v1 · 2013-11-09 · 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{KXCACP4BUOTFZRJRFHIGLUTVH3}

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	2026-05-18T03:07:33.280478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55c4013f81a3a65cc53129d065d2753ec07879e1c0e75918850f96420a6567cd

Aliases

arxiv: 1311.2194 · arxiv_version: 1311.2194v1 · doi: 10.48550/arxiv.1311.2194 · pith_short_12: KXCACP4BUOTF · pith_short_16: KXCACP4BUOTFZRJR · pith_short_8: KXCACP4B

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/KXCACP4BUOTFZRJRFHIGLUTVH3 \
  | 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: 55c4013f81a3a65cc53129d065d2753ec07879e1c0e75918850f96420a6567cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e77a6b8809f3cbfe2f18f443b5d5955b9aa04e9d7cfa2b37c07df84e17a7eca1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-11-09T18:29:24Z",
    "title_canon_sha256": "fcf0481c75efc46c784a394644ae0ab90f13e03e071d80d9b56de658c85e63dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2194",
    "kind": "arxiv",
    "version": 1
  }
}