Pith Number

pith:2UO4XXQ7

pith:2013:2UO4XXQ7TKIC6B4I457QKBV5C3

not attested not anchored not stored refs pending

A computational tool for comparing all linear PDE solvers -- Optimal methods are meshless

Robert Schaback

arxiv:1302.2784 v1 · 2013-02-12 · 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{2UO4XXQ7TKIC6B4I457QKBV5C3}

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	2026-05-18T03:33:50.840481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d51dcbde1f9a902f0788e77f0506bd16eac1e6ca7871f39cf0e78a5143dde1cb

Aliases

arxiv: 1302.2784 · arxiv_version: 1302.2784v1 · doi: 10.48550/arxiv.1302.2784 · pith_short_12: 2UO4XXQ7TKIC · pith_short_16: 2UO4XXQ7TKIC6B4I · pith_short_8: 2UO4XXQ7

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/2UO4XXQ7TKIC6B4I457QKBV5C3 \
  | 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: d51dcbde1f9a902f0788e77f0506bd16eac1e6ca7871f39cf0e78a5143dde1cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07db17ffc4d9f52eef1f2a8135f7162d3e28e27834a0a95b43010163628a1757",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-02-12T13:25:43Z",
    "title_canon_sha256": "93ffa78e600bd9fbde50091d2f4305261e76d0ba60afd9ad87ec3b30f31d1919"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2784",
    "kind": "arxiv",
    "version": 1
  }
}