Pith Number

pith:ECF22G4S

pith:2020:ECF22G4SJ5DLCMAQEH7TJTA4VI

not attested not anchored not stored refs pending

Refined isogeometric analysis for generalized Hermitian eigenproblems

Ali Hashemian, David Pardo, Victor M. Calo

arxiv:2009.08167 v1 · 2020-09-17 · math.NA · cs.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{ECF22G4SJ5DLCMAQEH7TJTA4VI}

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	2026-07-05T02:33:20.488293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

208bad1b924f46b1301021ff34cc1caa0429e9f4901ad863242db945ab53cb94

Aliases

arxiv: 2009.08167 · arxiv_version: 2009.08167v1 · doi: 10.48550/arxiv.2009.08167 · pith_short_12: ECF22G4SJ5DL · pith_short_16: ECF22G4SJ5DLCMAQ · pith_short_8: ECF22G4S

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/ECF22G4SJ5DLCMAQEH7TJTA4VI \
  | 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: 208bad1b924f46b1301021ff34cc1caa0429e9f4901ad863242db945ab53cb94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83156c93472003c2e80e1233589247cf7e03e9436deb066b0a5ab9ebaec9fbc4",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-09-17T09:21:49Z",
    "title_canon_sha256": "a3909bb8d0de100b62f65df8d97b52d50a73c381733f68d5dc4534b24a9226fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.08167",
    "kind": "arxiv",
    "version": 1
  }
}