Pith Number

pith:D7AH6H4M

pith:2012:D7AH6H4MELVXYBBUE7CJMXXM2U

not attested not anchored not stored refs pending

Continuous Interior Penalty Finite Element Method for Helmholtz Equation with High Wave Number: One Dimensional Analysis

Erik Burman, Haijun Wu, Lingxue Zhu

arxiv:1211.1424 v1 · 2012-11-07 · 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{D7AH6H4MELVXYBBUE7CJMXXM2U}

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	2026-05-18T03:41:20.983848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fc07f1f8c22eb7c043427c4965eecd5368af1c1172cb10a3388aed6ef98175c

Aliases

arxiv: 1211.1424 · arxiv_version: 1211.1424v1 · doi: 10.48550/arxiv.1211.1424 · pith_short_12: D7AH6H4MELVX · pith_short_16: D7AH6H4MELVXYBBU · pith_short_8: D7AH6H4M

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/D7AH6H4MELVXYBBUE7CJMXXM2U \
  | 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: 1fc07f1f8c22eb7c043427c4965eecd5368af1c1172cb10a3388aed6ef98175c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "677912d63867f4db8a4c148d6cf936f99903ed8768ab240f574e7dd07fae0ee2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-11-07T00:11:19Z",
    "title_canon_sha256": "dd49fc28df44337d0e3152173e490dc98b38a28bdae5d63474932cada3b2d30d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1424",
    "kind": "arxiv",
    "version": 1
  }
}