Pith Number

pith:QYC52DYZ

pith:2012:QYC52DYZQV4MJAGNCY3LGMR25J

not attested not anchored not stored refs pending

Accelerated Landweber methods based on co-dilated orthogonal polynomials

Wolfgang Erb

arxiv:1206.1950 v2 · 2012-06-09 · 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{QYC52DYZQV4MJAGNCY3LGMR25J}

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	2026-05-18T03:38:04.961780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8605dd0f198578c480cd1636b3323aea5b4bbaad231fe50a9b427be3f7281f1c

Aliases

arxiv: 1206.1950 · arxiv_version: 1206.1950v2 · doi: 10.48550/arxiv.1206.1950 · pith_short_12: QYC52DYZQV4M · pith_short_16: QYC52DYZQV4MJAGN · pith_short_8: QYC52DYZ

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/QYC52DYZQV4MJAGNCY3LGMR25J \
  | 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: 8605dd0f198578c480cd1636b3323aea5b4bbaad231fe50a9b427be3f7281f1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "435774808925b4b014c4ed99256760082f355a4c51d0251bf82af512720db1fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-06-09T15:59:41Z",
    "title_canon_sha256": "d8095b7e6a59474812b2ac761ccf3b76310cdc344851b71d16e35fbf47dae37e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.1950",
    "kind": "arxiv",
    "version": 2
  }
}