Pith Number

pith:QFZXNKRZ

pith:2024:QFZXNKRZQ64NSYMIKPTU63Z2ML

not attested not anchored not stored refs pending

Point collocation with mollified piecewise polynomial approximants for high-order partial differential equations

Dewangga Alfarisy, Eky Febrianto, Fehmi Cirak, Lavi Zuhal, Michael Ortiz

arxiv:2402.16548 v2 · 2024-02-26 · math.NA · cs.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{QFZXNKRZQ64NSYMIKPTU63Z2ML}

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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	2026-07-05T08:37:51.492019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

817376aa3987b8d9618853e74f6f3a62d459ee6d28fae7b1cb81e3fa7b389a7e

Aliases

arxiv: 2402.16548 · arxiv_version: 2402.16548v2 · doi: 10.48550/arxiv.2402.16548 · pith_short_12: QFZXNKRZQ64N · pith_short_16: QFZXNKRZQ64NSYMI · pith_short_8: QFZXNKRZ

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/QFZXNKRZQ64NSYMIKPTU63Z2ML \
  | 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: 817376aa3987b8d9618853e74f6f3a62d459ee6d28fae7b1cb81e3fa7b389a7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "028a65e56cdd8a5abbecd6b8a9d0cf2cdbc73943c494514b21e834af4b1385c9",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-02-26T13:16:07Z",
    "title_canon_sha256": "7dd0b81bff16f541e9b683fccdd73c28493847abbc8cbd1089c6f1f5e9a38b97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.16548",
    "kind": "arxiv",
    "version": 2
  }
}