Pith Number

pith:PYBBRVMN

pith:2015:PYBBRVMNMQGKTGFXVIPP3HOC6P

not attested not anchored not stored refs pending

Well-posedness for a class of nonlinear degenerate parabolic equations

Giuseppe Floridia

arxiv:1509.05510 v1 · 2015-09-18 · math.AP · math.FA · math.OC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PYBBRVMNMQGKTGFXVIPP3HOC6P}

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	2026-05-18T01:32:42.985798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e0218d58d640ca998b7aa1efd9dc2f3ccc9e17dc207791f2d73e94266fab4be

Aliases

arxiv: 1509.05510 · arxiv_version: 1509.05510v1 · doi: 10.48550/arxiv.1509.05510 · pith_short_12: PYBBRVMNMQGK · pith_short_16: PYBBRVMNMQGKTGFX · pith_short_8: PYBBRVMN

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/PYBBRVMNMQGKTGFXVIPP3HOC6P \
  | 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: 7e0218d58d640ca998b7aa1efd9dc2f3ccc9e17dc207791f2d73e94266fab4be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecb288b93cca698b3f2180a30c0b7be27018c7f7474bf685a7cf7438fe3b6e7f",
    "cross_cats_sorted": [
      "math.FA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-09-18T05:44:33Z",
    "title_canon_sha256": "c58ab758a7a32c41c148164009097a63890999833202e8f562f6d286823ad239"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05510",
    "kind": "arxiv",
    "version": 1
  }
}