Pith Number

pith:4KAHZ5O3

pith:2013:4KAHZ5O3YR5NZULYTOVNDZXET2

not attested not anchored not stored refs pending

A mixed FEM for the quad-curl eigenvalue problem

Jiguang Sun

arxiv:1310.6618 v1 · 2013-10-24 · 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{4KAHZ5O3YR5NZULYTOVNDZXET2}

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	2026-05-18T03:09:08.855567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2807cf5dbc47adcd1789baad1e6e49e89316ce06f028688a84dcdc3c36af0c8

Aliases

arxiv: 1310.6618 · arxiv_version: 1310.6618v1 · doi: 10.48550/arxiv.1310.6618 · pith_short_12: 4KAHZ5O3YR5N · pith_short_16: 4KAHZ5O3YR5NZULY · pith_short_8: 4KAHZ5O3

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/4KAHZ5O3YR5NZULYTOVNDZXET2 \
  | 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: e2807cf5dbc47adcd1789baad1e6e49e89316ce06f028688a84dcdc3c36af0c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4b48a71ebeb1860913c0b11f8fc9477d53a71605a5e79abadb72f1ec1086d60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-10-24T13:57:24Z",
    "title_canon_sha256": "235ef7217ea3818078028317f96191bdd6343a2a59cc4a20be138f8f4b63beed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6618",
    "kind": "arxiv",
    "version": 1
  }
}