Pith Number

pith:RB2UWO54

pith:2011:RB2UWO54FTUXWINPLUT3PVWRHM

not attested not anchored not stored refs pending

Rayleigh-Taylor breakdown for the Muskat problem with applications to water waves

Angel Castro, Charles Fefferman, Diego Cordoba, Francisco Gancedo, Maria Lopez-Fernandez

arxiv:1102.1902 v2 · 2011-02-09 · 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{RB2UWO54FTUXWINPLUT3PVWRHM}

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	2026-05-18T04:20:12.882429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88754b3bbc2ce97b21af5d27b7d6d13b03b129c8483f8fd2e7dde6108c7ad2e9

Aliases

arxiv: 1102.1902 · arxiv_version: 1102.1902v2 · doi: 10.48550/arxiv.1102.1902 · pith_short_12: RB2UWO54FTUX · pith_short_16: RB2UWO54FTUXWINP · pith_short_8: RB2UWO54

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/RB2UWO54FTUXWINPLUT3PVWRHM \
  | 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: 88754b3bbc2ce97b21af5d27b7d6d13b03b129c8483f8fd2e7dde6108c7ad2e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd67a0e36239c9a8cfa46518b929c1942fce875741448a7147f789aa328aa0d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-02-09T16:45:06Z",
    "title_canon_sha256": "dbb14d3b80567a29102fb3ed446cb4202c9869336332e77c38a1541c5545edd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.1902",
    "kind": "arxiv",
    "version": 2
  }
}