Pith Number

pith:5YYY2VLU

pith:2013:5YYY2VLUQUV2JZRXI5WDIJJ5RW

not attested not anchored not stored refs pending

The fractional Laplacian operator on bounded domains as a special case of the nonlocal diffusion operator

Marta D'Elia, Max Gunzburger

arxiv:1303.6934 v1 · 2013-03-27 · 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{5YYY2VLUQUV2JZRXI5WDIJJ5RW}

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	2026-05-18T03:29:39.286596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee318d5574852ba4e637476c34253d8d8a1da6e5d0ab793065ebc2ea918ea107

Aliases

arxiv: 1303.6934 · arxiv_version: 1303.6934v1 · doi: 10.48550/arxiv.1303.6934 · pith_short_12: 5YYY2VLUQUV2 · pith_short_16: 5YYY2VLUQUV2JZRX · pith_short_8: 5YYY2VLU

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/5YYY2VLUQUV2JZRXI5WDIJJ5RW \
  | 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: ee318d5574852ba4e637476c34253d8d8a1da6e5d0ab793065ebc2ea918ea107

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b690d01ad7eb87fe7f34c9b1a3c66c0549d0d612fab3316d5791919d0c73d6a4",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-03-27T19:31:58Z",
    "title_canon_sha256": "c30854ace6cc7ad90fc6cb71ce98d43fce1f985f73e0e992cf1bed98fdca5ea4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.6934",
    "kind": "arxiv",
    "version": 1
  }
}