Pith Number

pith:FEHGUSBI

pith:2010:FEHGUSBIKC3USL76PWZB42262Y

not attested not anchored not stored refs pending

On the parabolicity of the Muskat problem: Well-posedness, fingering, and stability results

Bogdan-Vasile Matioc, Joachim Escher

arxiv:1005.2512 v2 · 2010-05-14 · 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{FEHGUSBIKC3USL76PWZB42262Y}

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	2026-05-18T04:12:43.053480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

290e6a482850b7492ffe7db21e6b5ed639ffa32402792a79844d2d8b78bd1fba

Aliases

arxiv: 1005.2512 · arxiv_version: 1005.2512v2 · doi: 10.48550/arxiv.1005.2512 · pith_short_12: FEHGUSBIKC3U · pith_short_16: FEHGUSBIKC3USL76 · pith_short_8: FEHGUSBI

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/FEHGUSBIKC3USL76PWZB42262Y \
  | 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: 290e6a482850b7492ffe7db21e6b5ed639ffa32402792a79844d2d8b78bd1fba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1fb6e00de3a33f5d1eb0c4ca3e7a73b0c68701e254f1c2f72a9852e6f50f1fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2010-05-14T12:40:47Z",
    "title_canon_sha256": "233a826a578fdcc7752be912167dffd2bb08fcf3cb269e0941adc883253146ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.2512",
    "kind": "arxiv",
    "version": 2
  }
}