Pith Number

pith:JSCLZNEV

pith:2011:JSCLZNEVE4PK2P7FN7HK6GIUVI

not attested not anchored not stored refs pending

Computing the lower and upper bounds of Laplace eigenvalue problem: by combining conforming and nonconforming finite element methods

Fusheng Luo, Hehu Xie, Qun Lin

arxiv:1109.5977 v1 · 2011-09-27 · 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{JSCLZNEVE4PK2P7FN7HK6GIUVI}

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	2026-05-18T02:00:22.550608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c84bcb495271ead3fe56fceaf1914aa1a86a76403c90724e44714f16a644a35

Aliases

arxiv: 1109.5977 · arxiv_version: 1109.5977v1 · doi: 10.48550/arxiv.1109.5977 · pith_short_12: JSCLZNEVE4PK · pith_short_16: JSCLZNEVE4PK2P7F · pith_short_8: JSCLZNEV

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/JSCLZNEVE4PK2P7FN7HK6GIUVI \
  | 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: 4c84bcb495271ead3fe56fceaf1914aa1a86a76403c90724e44714f16a644a35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2f0c9280e094516e65ae53652ea3218ea700e0fe69805b860c9213236a04580",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-09-27T17:49:13Z",
    "title_canon_sha256": "75c91246f5a7c778b453e7805067feaa5729f027692c1d5a91fb186000d2e2e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5977",
    "kind": "arxiv",
    "version": 1
  }
}