Pith Number

pith:GH7MP4FL

pith:2009:GH7MP4FLCMR2MJIKEU4FRVPYWM

not attested not anchored not stored refs pending

Open letter on "Adaptivity and computational complexity in the numerical solution of ODEs" by Silvana Ilie, Gustaf Soederlind and Robert M. Corless

Erich Novak, Henryk Wozniakowski

arxiv:0904.4441 v1 · 2009-04-28 · 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{GH7MP4FLCMR2MJIKEU4FRVPYWM}

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	2026-06-03T23:06:25.841156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31fec7f0ab1323a6250a253858d5f8b32ef17cce32ed70d5c6c567715ba68678

Aliases

arxiv: 0904.4441 · arxiv_version: 0904.4441v1 · doi: 10.48550/arxiv.0904.4441 · pith_short_12: GH7MP4FLCMR2 · pith_short_16: GH7MP4FLCMR2MJIK · pith_short_8: GH7MP4FL

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/GH7MP4FLCMR2MJIKEU4FRVPYWM \
  | 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: 31fec7f0ab1323a6250a253858d5f8b32ef17cce32ed70d5c6c567715ba68678

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa16927895d18471215039394cc56a95e1d6c087e13e065547213971d1742a95",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-04-28T16:32:12Z",
    "title_canon_sha256": "30614afd78b806733c8180ee629e39bf11800106fc58e7289a24bdd59df6958a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4441",
    "kind": "arxiv",
    "version": 1
  }
}