Pith Number

pith:2NXUCXES

pith:2019:2NXUCXES57BHPDEDFW2H7Y4ASA

not attested not anchored not stored refs pending

A short proof of local regularity of distributional solutions of Poisson's equation

Alberto Fiorenza, Giovanni Di Fratta

arxiv:1904.05839 v2 · 2019-04-11 · 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{2NXUCXES57BHPDEDFW2H7Y4ASA}

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	2026-05-17T23:48:29.310090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d36f415c92efc2778c832db47fe3809033bd5b0eab173daea12a3c335acfb487

Aliases

arxiv: 1904.05839 · arxiv_version: 1904.05839v2 · doi: 10.48550/arxiv.1904.05839 · pith_short_12: 2NXUCXES57BH · pith_short_16: 2NXUCXES57BHPDED · pith_short_8: 2NXUCXES

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/2NXUCXES57BHPDEDFW2H7Y4ASA \
  | 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: d36f415c92efc2778c832db47fe3809033bd5b0eab173daea12a3c335acfb487

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03f6bdbed44367addb3aa9b2a8de713af47767c668cebefe094a81e7e4fe6caf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-04-11T16:46:29Z",
    "title_canon_sha256": "0dc067bfce65cddc146f8c933785b8eab2820bbb3a351b0de1247a881249dc1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.05839",
    "kind": "arxiv",
    "version": 2
  }
}