Pith Number

pith:KQ4YCIRY

pith:2015:KQ4YCIRYEMVK5TWCU5P6XN7MII

not attested not anchored not stored refs pending

Interior degenerate/singular parabolic equations in nondivergence form: well-posedness and Carleman estimates

Genni Fragnelli

arxiv:1508.02030 v3 · 2015-08-09 · 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{KQ4YCIRYEMVK5TWCU5P6XN7MII}

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	2026-05-18T01:32:00.180857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5439812238232aaecec2a75febb7ec4220c0bb984aa2d97cae44e29b88dab794

Aliases

arxiv: 1508.02030 · arxiv_version: 1508.02030v3 · doi: 10.48550/arxiv.1508.02030 · pith_short_12: KQ4YCIRYEMVK · pith_short_16: KQ4YCIRYEMVK5TWC · pith_short_8: KQ4YCIRY

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/KQ4YCIRYEMVK5TWCU5P6XN7MII \
  | 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: 5439812238232aaecec2a75febb7ec4220c0bb984aa2d97cae44e29b88dab794

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c4483357597ef5b04c851fb401927c26d62ebc186f08e2d2a6b386a39f1bb43",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-08-09T14:33:22Z",
    "title_canon_sha256": "3f07cecdf8b474367a8556a9f6f266bbfd8919a566524d2b52235a9d24f2309f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.02030",
    "kind": "arxiv",
    "version": 3
  }
}