Pith Number

pith:KQQKUQL4

pith:2012:KQQKUQL45HHHQIVCWZPDMDG5YS

not attested not anchored not stored refs pending

Finite Element Exterior Calculus for Evolution Problems

Andrew Gillette, Michael Holst, Yunrong Zhu

arxiv:1202.1573 v4 · 2012-02-08 · math.NA · 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{KQQKUQL45HHHQIVCWZPDMDG5YS}

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	2026-05-18T01:02:29.105533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5420aa417ce9ce7822a2b65e360cddc4af6cd756b2c91b9761c1c4105bf09cfa

Aliases

arxiv: 1202.1573 · arxiv_version: 1202.1573v4 · doi: 10.48550/arxiv.1202.1573 · pith_short_12: KQQKUQL45HHH · pith_short_16: KQQKUQL45HHHQIVC · pith_short_8: KQQKUQL4

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/KQQKUQL45HHHQIVCWZPDMDG5YS \
  | 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: 5420aa417ce9ce7822a2b65e360cddc4af6cd756b2c91b9761c1c4105bf09cfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e24268066346c2e52c8063fe174e513f68b1e08257addd67fc89953079a03af",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-02-08T01:28:11Z",
    "title_canon_sha256": "b8245a1aa74270941e10004b7f749946ad3c20a5a82751fc65c8a07c98481197"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.1573",
    "kind": "arxiv",
    "version": 4
  }
}