Pith Number

pith:QKGZ4LHE

pith:2014:QKGZ4LHEVIMURD44WKNO53KDYW

not attested not anchored not stored refs pending

An algorithmic exploration of the existence of high-order summation by parts operators with diagonal norm

Joshua Klarmann, Nathan Albin

arxiv:1403.5750 v3 · 2014-03-23 · 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{QKGZ4LHEVIMURD44WKNO53KDYW}

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	2026-05-18T01:08:29.240868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

828d9e2ce4aa19488f9cb29aeeed43c5a802828a869b63f196582813ce35a496

Aliases

arxiv: 1403.5750 · arxiv_version: 1403.5750v3 · doi: 10.48550/arxiv.1403.5750 · pith_short_12: QKGZ4LHEVIMU · pith_short_16: QKGZ4LHEVIMURD44 · pith_short_8: QKGZ4LHE

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/QKGZ4LHEVIMURD44WKNO53KDYW \
  | 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: 828d9e2ce4aa19488f9cb29aeeed43c5a802828a869b63f196582813ce35a496

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae08156bb6354901af6f0300c4214cf983dd50a51ee1e610c772fe778d6bec89",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-03-23T13:18:43Z",
    "title_canon_sha256": "1fe0a8d0f8d073db95b1d879432e8b66d0b49613d6aa196afaa5386690a13667"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.5750",
    "kind": "arxiv",
    "version": 3
  }
}