Pith Number

pith:ZXMEGEAQ

pith:2016:ZXMEGEAQGMP4IDVJ7MYXHXSMU6

not attested not anchored not stored refs pending

A short FE implementation for a 2d homogeneous Dirichlet problem of a Fractional Laplacian

Francisco M. Bersetche, Gabriel Acosta, Juan Pablo Borthagaray

arxiv:1610.05558 v2 · 2016-10-18 · 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{ZXMEGEAQGMP4IDVJ7MYXHXSMU6}

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	2026-05-18T00:44:13.627853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdd8431010331fc40ea9fb3173de4ca7848f68362cdf65104d0cad155da99a85

Aliases

arxiv: 1610.05558 · arxiv_version: 1610.05558v2 · doi: 10.48550/arxiv.1610.05558 · pith_short_12: ZXMEGEAQGMP4 · pith_short_16: ZXMEGEAQGMP4IDVJ · pith_short_8: ZXMEGEAQ

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/ZXMEGEAQGMP4IDVJ7MYXHXSMU6 \
  | 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: cdd8431010331fc40ea9fb3173de4ca7848f68362cdf65104d0cad155da99a85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc18ae9c0ef0ccec3f3b18de1461f1a5bc82f82e75244bec37ee1aa035500a73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-10-18T12:10:24Z",
    "title_canon_sha256": "07a0419c5606be0a9d763ab8d6eb6977f4f67e4083029dd742ef9cc8d5df0016"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.05558",
    "kind": "arxiv",
    "version": 2
  }
}