Pith Number

pith:3K2V2P2K

pith:2013:3K2V2P2KPEDJMEQ777VU5V3WQP

not attested not anchored not stored refs pending

Variants of an explicit kernel-split panel-based Nystr\"om discretization scheme for Helmholtz boundary value problems

Anders Holst, Johan Helsing

arxiv:1311.6258 v3 · 2013-11-25 · 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{3K2V2P2KPEDJMEQ777VU5V3WQP}

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	2026-05-18T02:45:04.537840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dab55d3f4a790696121fffeb4ed77683cecb475c4808c4f5d033df2fb4059a8b

Aliases

arxiv: 1311.6258 · arxiv_version: 1311.6258v3 · doi: 10.48550/arxiv.1311.6258 · pith_short_12: 3K2V2P2KPEDJ · pith_short_16: 3K2V2P2KPEDJMEQ7 · pith_short_8: 3K2V2P2K

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/3K2V2P2KPEDJMEQ777VU5V3WQP \
  | 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: dab55d3f4a790696121fffeb4ed77683cecb475c4808c4f5d033df2fb4059a8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15d9ceb37cf4cf3c8b4936bde5aee2245642e1926aa282f9d9160886633b2708",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-11-25T10:48:33Z",
    "title_canon_sha256": "65c4401b7be7a509b945e9fee7d5b902cee9151c4c5dbfc01624c3a84e8f19b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.6258",
    "kind": "arxiv",
    "version": 3
  }
}