Pith Number

pith:UWZD4IJ3

pith:2012:UWZD4IJ33Y6SQHO4KIZLTKBFGX

not attested not anchored not stored refs pending

Optimized explicit Runge-Kutta schemes for the spectral difference method applied to wave propagation problems

D. I. Ketcheson, M. Parsani, W. Deconinck

arxiv:1207.5830 v2 · 2012-07-24 · math.NA · cs.NA · physics.flu-dyn

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UWZD4IJ33Y6SQHO4KIZLTKBFGX}

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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	2026-05-18T03:18:31.737185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5b23e213bde3d281ddc5232b9a82535d1b921f39612e8505e5166f7a76c8d18

Aliases

arxiv: 1207.5830 · arxiv_version: 1207.5830v2 · doi: 10.48550/arxiv.1207.5830 · pith_short_12: UWZD4IJ33Y6S · pith_short_16: UWZD4IJ33Y6SQHO4 · pith_short_8: UWZD4IJ3

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/UWZD4IJ33Y6SQHO4KIZLTKBFGX \
  | 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: a5b23e213bde3d281ddc5232b9a82535d1b921f39612e8505e5166f7a76c8d18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "804d0c4853924e0c458c9822180f5a13da562716d48ebe2645d9b66d6db28380",
    "cross_cats_sorted": [
      "cs.NA",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-07-24T21:25:59Z",
    "title_canon_sha256": "6bb95d2fb4ae3768319e77c782a9fba1105f993dbac07f0983a71e2ebb9316b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5830",
    "kind": "arxiv",
    "version": 2
  }
}