Pith Number

pith:5AKHZ5YJ

pith:2011:5AKHZ5YJI2WQQLCNDTLPLTQSXU

not attested not anchored not stored refs pending

Diffeomorphism-invariant properties for quasi-linear elliptic operators

Marco Squassina, Viviana Solferino

arxiv:1104.2178 v1 · 2011-04-12 · 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{5AKHZ5YJI2WQQLCNDTLPLTQSXU}

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	2026-05-18T04:24:35.796978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8147cf70946ad082c4d1cd6f5ce12bd36022af8258338812ef81b1dd7f86ac7

Aliases

arxiv: 1104.2178 · arxiv_version: 1104.2178v1 · doi: 10.48550/arxiv.1104.2178 · pith_short_12: 5AKHZ5YJI2WQ · pith_short_16: 5AKHZ5YJI2WQQLCN · pith_short_8: 5AKHZ5YJ

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/5AKHZ5YJI2WQQLCNDTLPLTQSXU \
  | 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: e8147cf70946ad082c4d1cd6f5ce12bd36022af8258338812ef81b1dd7f86ac7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb00b35cf5dc87c7d6c05b0be8dfc58a6786f7dabf95095387535c6ccb4d0276",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-04-12T11:56:24Z",
    "title_canon_sha256": "65e25c768fef1523896e1e1068a15831414a2cccb149c27d131720b6f9ca9087"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2178",
    "kind": "arxiv",
    "version": 1
  }
}