Pith Number

pith:XK4EQTST

pith:2011:XK4EQTSTL4E7BVUOXTOKBTZOHV

not attested not anchored not stored refs pending

Inhomogeneous Parabolic Neumann Problems

Robin Nittka

arxiv:1108.6227 v1 · 2011-08-31 · 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{XK4EQTSTL4E7BVUOXTOKBTZOHV}

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	2026-05-18T04:14:26.772756Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bab8484e535f09f0d68ebcdca0cf2e3d4fc27c5cc4209fe80265122d8a7583dd

Aliases

arxiv: 1108.6227 · arxiv_version: 1108.6227v1 · doi: 10.48550/arxiv.1108.6227 · pith_short_12: XK4EQTSTL4E7 · pith_short_16: XK4EQTSTL4E7BVUO · pith_short_8: XK4EQTST

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/XK4EQTSTL4E7BVUOXTOKBTZOHV \
  | 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: bab8484e535f09f0d68ebcdca0cf2e3d4fc27c5cc4209fe80265122d8a7583dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33f48f49b393ca0c7f10d6a8ce706a6fd89494135fb9158386ed24b7f805982b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-08-31T13:47:21Z",
    "title_canon_sha256": "659e02cc07e6dd8f2f95b459e3d33d52608b91e429b3e12de3ec94e09a93c203"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.6227",
    "kind": "arxiv",
    "version": 1
  }
}