Pith Number

pith:NO2DOOME

pith:2012:NO2DOOMELQIBPA526FNWKLWD4Z

not attested not anchored not stored refs pending

Regularity in the Obstacle Problem for Parabolic Non-divergence Operators of H\"ormander type

Marie Frentz

arxiv:1210.4363 v1 · 2012-10-16 · 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{NO2DOOMELQIBPA526FNWKLWD4Z}

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	2026-05-18T03:43:06.231896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bb43739845c101783baf15b652ec3e66e547e84d974b2937e926a209b7cde27

Aliases

arxiv: 1210.4363 · arxiv_version: 1210.4363v1 · doi: 10.48550/arxiv.1210.4363 · pith_short_12: NO2DOOMELQIB · pith_short_16: NO2DOOMELQIBPA52 · pith_short_8: NO2DOOME

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/NO2DOOMELQIBPA526FNWKLWD4Z \
  | 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: 6bb43739845c101783baf15b652ec3e66e547e84d974b2937e926a209b7cde27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1a60cb7486e933dac455e151f7c62c87b779bb8539c98a3c66ddcde29238448",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-10-16T11:13:30Z",
    "title_canon_sha256": "279fb5e6a32640b59ad7834f36185d734e32274fa08cd52401225256ad51ac2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.4363",
    "kind": "arxiv",
    "version": 1
  }
}