Pith Number

pith:IC66ZZGN

pith:2017:IC66ZZGNN5N434WJ3RDZ4ZE5KZ

not attested not anchored not stored refs pending

A discrete Bakry-Emery method and its application to the porous-medium equation

Ansgar J\"ungel, Stefan Schuchnigg

arxiv:1702.03780 v1 · 2017-02-13 · math.AP · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IC66ZZGNN5N434WJ3RDZ4ZE5KZ}

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	2026-05-18T00:50:53.023620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40bdece4cd6f5bcdf2c9dc479e649d5645f94c7ba994629806b33d3ff7b51fa9

Aliases

arxiv: 1702.03780 · arxiv_version: 1702.03780v1 · doi: 10.48550/arxiv.1702.03780 · pith_short_12: IC66ZZGNN5N4 · pith_short_16: IC66ZZGNN5N434WJ · pith_short_8: IC66ZZGN

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/IC66ZZGNN5N434WJ3RDZ4ZE5KZ \
  | 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: 40bdece4cd6f5bcdf2c9dc479e649d5645f94c7ba994629806b33d3ff7b51fa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "201a0b9f1edcb17363f7b65a4d2c933624d6a8480c7c63b58ccf2689199dbab5",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-02-13T14:09:18Z",
    "title_canon_sha256": "4343ea28e226aaa058a110f3c44a566c9f69ac7cf08781a9e4c0d527d616696a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03780",
    "kind": "arxiv",
    "version": 1
  }
}