Pith Number

pith:FUH2Q42S

pith:2012:FUH2Q42S4NDM5QFROBKM2VNRDD

not attested not anchored not stored refs pending

Efficient Assembly of H(div) and H(curl) Conforming Finite Elements

Anders Logg, Marie Rognes, Robert C. Kirby

arxiv:1205.3085 v1 · 2012-05-14 · 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{FUH2Q42S4NDM5QFROBKM2VNRDD}

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	2026-05-18T03:55:45.307191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d0fa87352e346cec0b17054cd55b118ce9101f451967864b252ff6df4d77318

Aliases

arxiv: 1205.3085 · arxiv_version: 1205.3085v1 · doi: 10.48550/arxiv.1205.3085 · pith_short_12: FUH2Q42S4NDM · pith_short_16: FUH2Q42S4NDM5QFR · pith_short_8: FUH2Q42S

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/FUH2Q42S4NDM5QFROBKM2VNRDD \
  | 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: 2d0fa87352e346cec0b17054cd55b118ce9101f451967864b252ff6df4d77318

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4099e18bf71ea32c878ca89f7fcbb30df839e41e8ffe4dd9cd4c839118176dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-05-14T16:32:33Z",
    "title_canon_sha256": "9a6bc08e771dd6e972070f6da767f38ce3d88f16a90f390e378d2c2eafe39662"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.3085",
    "kind": "arxiv",
    "version": 1
  }
}